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Dr. Christopher Sun, MD

Accepting New Patients
Specializes in: Internal Medicine (Adult Medicine)
University of Dundee School of Medicine (2003)
Professional interests include: anxiety, hay fever (allergic rhinitis), gastroenteritis, and more.
520 N Prospect Avenue Suite 103
Redondo Beach, CA 90277

Dr. Christopher Sun, MD is an internist in Redondo Beach, CA specializing in internal medicine (adult medicine). He graduated from University of Dundee School of Medicine in 2003 and has 22 years of experience. Dr. Christopher Sun, MD is affiliated with Providence, Providence Little Company of Mary Medical Center Torrance and Providence Medical Institute.

View Doctor's Full Profile (310) 376-8816

Office Locations

520 N Prospect Avenue Suite 103
Redondo Beach, CA 90277
open_in_new

Some issues Dr. Christopher Sun, MD can help you with:

Headache

Headaches are dull or sharp pains that occur in regions of the head and face. Headaches occur in many different forms and vary in location, severity, and duration. They are not necessarily a sign of an underlying illness and often resolve on their own. However, headaches can present significant day-to-day discomfort. The most common forms of headaches include:

  • Migraines: one of the most prevalent types of headache, migraines typically last from two hours to three days, causing a throbbing pain on one side of the head. Nausea, sensitivity to bright lights, fatigue, and blurred vision all may accompany migraines. While migraines have no known cure, medications and lifestyle modifications may ease symptoms. Avoiding behaviors that may trigger migraines such as lack of sleep or loud, repetitive noises can improve headaches.
  • Tension headaches: also known as stress headaches, these headaches are characterized by pain in the upper top part of the head and behind the eyes. Tension headaches are common and have no exact cause; however, certain practices may increase the likelihood of developing them. For example, wearing one's hair up in a tight hairstyle or wearing a restrictive hat can put pressure on the scalp, leading to a tension headache. Other causes of tension headaches may include alcohol or nicotine use, caffeine, teeth grinding, stress, overexertion, and eye strain. Some people find posture improvement, alternating sleeping positions, and neck exercise can alleviate tension headaches. Over-the-counter pain relievers such as ibuprofen (Advil, Motren) and naproxen sodium (Aleve) may also reduce tension-headache pain.
  • Sinus headaches: this type of headache causes pain in the sinuses, but may progress to pain and pressure in the eyes, forehead, and cheeks. These headaches are often accompanied by nasal congestion, fatigue, and ache in the upper teeth and may or may not be caused by sinus infections or sinusitis (sinus inflammation). Some sinus headaches are allergic headaches, which arise from allergic triggers such as seasonal allergies (pollen allergies) or hay fever, causing sinus pressure and facial pain. Other symptoms of allergic headaches include nasal congestion, irritated or watery eyes, runny nose, and sneezing. Allergic headaches may be treated with antihistamine medications such as cetirizine (Zyrtec). Allergic headaches are common during pollen season, which is usually around springtime.
  • Cluster headaches: these headaches occur suddenly and cause stabbing, sharp pain from one eye down to the one side of the neck. They are often referred to as the most aggravating and painful type of headaches. Other symptoms of cluster headaches include nasal congestion, droopy eyelid, and enlarged pupil on one side of the face. In the past, it was widely believed that cluster headaches were caused by a bevy or "cluster" of multiple types of headaches, such as a combination of an allergic headache and a tension headache. Medical experts now recognize that cluster headaches are a separate and unique form of headache. Cluster headaches last for around twenty minutes to two hours. They may recur throughout the period of a day or several weeks, but usually dissipate within a month. Treatment for cluster headaches includes over-the-counter pain medications such as ibuprofen (Advil, Motren) and naproxen sodium (Aleve). Prescription Prednisone can help with swelling and Verapamil may reduce pain by relaxing the blood vessels.

Living with headaches is challenging; headaches can prevent people from fully enjoying life. Medical treatment and care in avoiding certain triggers can help those with headaches begin to feel normal once again.

Mononucleosis (Mono)

Mononucleosis, frequently called ''mono,'' is a viral infection that causes fatigue, fever, swollen lymph glands, and sore throat. The Epstein-Barr virus (EBV), spread through saliva, is the primary virus that leads to mono. Mono is most common in teenagers and young adults, where EBV is often transmitted through kissing or sharing drinks. For this reason, mono is colloquially referred to as ''the kissing disease.'' Mononucleosis usually resolves on its own; however, recovery from mono can take from several days to several weeks. Some young adults may continue to experience extreme fatigue from mono for months, often requiring a semester home from school.

Mononucleosis happens in three stages:

During the initial stage, those with mono may experience few symptoms as EBV replicates in the body. Symptoms such as headaches and body aches are often misattributed to allergies or stress. People with mono may continue performing their daily activities and attending school, leading to increased transmission of the virus to others. The initial stage lasts for about five to fourteen days.

During the acute stage, mono symptoms intensify and may include the enlargement of the spleen, a sore throat, fatigue, liver issues, and skin rashes. The mono infection is at its worst in this stage.

Lastly, the convalescent stage is when recovery begins. This period of healing can last from two to six months.

Mono can be detected by a physical exam; physicians can diagnose mono by checking for inflamed lymph nodes, tonsils, or spleens. Blood antibody tests may also help diagnose mono by revealing antibodies in the blood that were formed as a response to the Epstein-Barr virus. Elevated levels of white blood cells can also suggest that a patient has mono.

There are no medications specifically for mono or the Epstein-Barr virus, and patients are advised to rest and avoid strenuous exercise. Drinking plenty of fluids, eating a healthy diet, and taking anti-inflammatory ibuprofen (motrin) may also help people who are afflicted with mono feel better.

People with mono should take precautions to avoid spreading the condition to others. They can prevent infection by not sharing glasses, food, and utensils with others until they fully recover.

Thyroid Problems

Thyroid problems are a group of conditions that alter hormone regulation and metabolism. The thyroid is a small, butterfly-shaped gland located in the lower neck, just below the Adam's apple (laryngeal prominence) and larynx (voice box). Despite its small size, the thyroid has an outsized effect on the body by regulating hormones that control metabolism. Metabolism is the body's process of converting consumed food into fuel to power the entire body. Heart rate, weight, cholesterol, body temperature, and even physical growth and development are all affected by the metabolism.

When the thyroid malfunctions, the body is unable to properly process and allocate energy. Thyroid problems, such as hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid), cause irregular metabolism. In some cases, the body produces antibodies that attack the thyroid cells for unknown reasons. The damaged thyroid responds by releasing either too little or too much T3 and T4 thyroid hormones. Thyroid malfunctions may also arise from genetic causes or iodine deficiency. Thyroid problems may include:

  • Hashimoto's thyroiditis, an autoimmune disease that causes hypothyroidism
  • Graves' disease, an autoimmune disease that causes hyperthyroidism
  • Goiter
  • Thyroid nodule
  • Thyroid cancer

Hashimoto's is the leading cause of hypothyroidism, which is when the thyroid does not produce enough hormones to stimulate adequate metabolism. The condition is diagnosed by blood tests that measure TSH (thyroid stimulating hormone) and detect Hashimoto's antibodies. Symptoms of hypothyroidism include sluggish metabolism, inflammation, fatigue, weight gain, brittle hair, dry skin, and sensitivity to cold. To supplement impaired thyroid function, patients with Hashimoto's are typically prescribed synthetic thyroid hormone pills. Such patients may need to consume synthetic thyroids for the rest of their lives. Other treatments may include dietary changes, such as the avoidance of certain foods and medication to reduce inflammation. Frequent blood tests can inform patients if their TSH levels are within a normal range.

Grave's disease is most frequently the cause of hyperthyroidism, which is when the thyroid produces too many hormones, overstimulating one's metabolism. The condition is also diagnosed by blood tests that measure TSH and detect Grave's antibodies. Elevated heart rate, high blood pressure, sweating, bulging eyes, and weight loss are common symptoms of hyperthyroidism. Treatments for hyperthyroidism include oral radioactive iodine, which slowly shrinks the thyroid, slowing the production of excess thyroid hormone. Other anti-thyroid medications such as methimazole (Tapazole) also reduce the production of thyroid hormones. Blood pressure medications known as beta blockers can ease the increased heart rate caused by hyperthyroidism. If treatments are unsuccessful, patients may be prescribed a thyroidectomy, or surgery to remove part or all of the thyroid. Some patients with hyperthyroidism may require ophthalmological (eye medicine) treatments such as eye drops, prednisone, and surgery to reduce eye swelling and bulging.

Untreated thyroid disorders frequently lead to goiters or thyroid nodules. A thyroid goiter is a large lump that can be felt near the base of the neck and is made of swollen thyroid tissue or nodules (excess cell growth). Nodules and goiters are diagnosed by CT scan or ultrasound. Obstructive goiters can cause pain, coughing, and abnormal breathing. The most common cause of goiters is hyperthyroidism (overactive thyroid). However, Hashimoto's is also known to cause goiters or nodules. Goiters develop from continued damage from antibodies to the thyroid over time. At times, a goiter can result from a cancerous thyroid tumor. Most goiters and nodules are themselves benign.

The exact causes of thyroid cancer are unknown. People who develop thyroid cancer may or may not have another thyroid problem such as Hashimoto's or Grave's disease. Symptoms of thyroid cancer include a nodule that can be felt on the neck, hoarseness, difficulty swallowing, swelling in the neck, and neck and throat pain. CT and MRI scans are used to diagnose thyroid cancer. There are four types of thyroid cancer which vary in intensity. Thyroidectomy (thyroid removal surgery) is usually prescribed to treat thyroid cancer.

Thyroid problems are often long-term conditions that require some form of treatment. With regular monitoring and medication, many people with thyroid problems are able to lead active and fulfilling lives.

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2013 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

blood draw 184
diabetes management 29
doctor visit 1036
hospital care 147
inpatient care 147
lab tests 566
preventive care 146
thoracic (chest) imaging 47
thyroid function tests 52
vaccines 35
X-rays 47

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 192
Female 170
Ethnicity
Non-Hispanic White 240
Black 0
Hispanic 41
Asian 37
Other 0
Native American 0
Age
From 65 to 74 119
From 75 to 84 119
85 and over 85
Less than 65 39

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2013

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2013 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension 75
High Cholesterol 65
Stroke 13
Ischemic Heart Disease 47
Depression 21
Chronic Kidney Disease 41
Asthma 8
Osteoperosis 12
Atrial Fibrilation 17
Heart Failure 31
Chronic Obstructive Pulmonary Disease 20
Diabetes 37
Dementia 23
Cancer 15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2014 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

blood draw 252
diabetes management 91
doctor visit 972
hospital care 29
inpatient care 29
lab tests 1313
preventive care 336
thoracic (chest) imaging 35
thyroid function tests 148
vaccines 91
X-rays 35

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 156
Female 127
Ethnicity
Non-Hispanic White 199
Black 0
Hispanic 27
Asian 35
Other 0
Native American 0
Age
From 65 to 74 110
From 75 to 84 90
85 and over 60
Less than 65 23

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2014

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2014 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension 75
High Cholesterol 70
Stroke 7
Ischemic Heart Disease 36
Depression 24
Chronic Kidney Disease 34
Asthma 7
Osteoperosis 10
Atrial Fibrilation 13
Heart Failure 21
Chronic Obstructive Pulmonary Disease 12
Diabetes 35
Dementia 15
Cancer 14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2015 were lab tests, preventive care, vaccines and blood draw.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

blood draw 211
diabetes management 116
doctor visit 864
lab tests 1553
preventive care 520
thoracic (chest) imaging 31
thyroid function tests 156
vaccines 260
X-rays 31

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 330
Female 218
Ethnicity
Non-Hispanic White 374
Black 0
Hispanic 50
Asian 80
Other 0
Native American 0
Age
From 65 to 74 222
From 75 to 84 164
85 and over 128
Less than 65 34

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2015

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2015 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension 74
High Cholesterol 66
Stroke 4
Ischemic Heart Disease 28
Depression 19
Chronic Kidney Disease 28
Asthma 7
Osteoperosis 13
Atrial Fibrilation 13
Heart Failure 20
Chronic Obstructive Pulmonary Disease 10
Diabetes 27
Dementia 20
Cancer 14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2016 were lab tests, preventive care, blood draw and vaccines.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

blood draw 227
diabetes management 137
doctor visit 918
lab tests 1457
preventive care 493
thoracic (chest) imaging 23
thyroid function tests 133
vaccines 190
X-rays 23

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 170
Female 121
Ethnicity
Non-Hispanic White 205
Black 0
Hispanic 23
Asian 41
Other 0
Native American 0
Age
From 65 to 74 117
From 75 to 84 79
85 and over 73
Less than 65 22

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2016

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2016 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension 67
High Cholesterol 59
Stroke 5
Ischemic Heart Disease 33
Depression 18
Chronic Kidney Disease 34
Asthma 9
Osteoperosis 14
Atrial Fibrilation 13
Heart Failure 22
Chronic Obstructive Pulmonary Disease 8
Diabetes 31
Dementia 21
Cancer 12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2017 were lab tests, preventive care, vaccines and blood draw.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

blood draw 135
diabetes management 49
doctor visit 968
lab tests 254
preventive care 223
thoracic (chest) imaging 37
thyroid function tests 14
vaccines 179
X-rays 37

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 170
Female 134
Ethnicity
Non-Hispanic White 200
Black 14
Hispanic 24
Asian 51
Other 15
Native American 0
Age
From 65 to 74 141
From 75 to 84 80
85 and over 71
Less than 65 12

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2017

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2017 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension 70
High Cholesterol 39
Stroke 4
Ischemic Heart Disease 36
Depression 19
Chronic Kidney Disease 31
Asthma 5
Osteoperosis 15
Atrial Fibrilation 11
Heart Failure 20
Chronic Obstructive Pulmonary Disease 9
Diabetes 34
Dementia 18
Cancer 12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2018 were preventive care and vaccines.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

doctor visit 942
preventive care 150
vaccines 150

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 177
Female 133
Ethnicity
Non-Hispanic White 184
Black 15
Hispanic 28
Asian 69
Other 14
Native American 0
Age
From 65 to 74 137
From 75 to 84 90
85 and over 66
Less than 65 17

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2018

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2018 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension 72
High Cholesterol 59
Stroke 8
Ischemic Heart Disease 37
Depression 18
Chronic Kidney Disease 39
Asthma 5
Osteoperosis 14
Atrial Fibrilation 11
Heart Failure 19
Chronic Obstructive Pulmonary Disease 8
Diabetes 35
Dementia 20
Cancer 11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2019 were preventive care, vaccines, hospital care and inpatient care.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

diabetes management 15
doctor visit 921
hospital care 22
inpatient care 22
lab tests 15
preventive care 156
vaccines 156

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 196
Female 141
Ethnicity
Non-Hispanic White 200
Black 12
Hispanic 35
Asian 73
Other 17
Native American 0
Age
From 65 to 74 147
From 75 to 84 98
85 and over 71
Less than 65 21

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2019

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2019 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension 73
High Cholesterol 56
Stroke 4
Ischemic Heart Disease 37
Depression 23
Chronic Kidney Disease 34
Asthma 4
Osteoperosis 15
Atrial Fibrilation 11
Heart Failure 19
Chronic Obstructive Pulmonary Disease 8
Diabetes 34
Dementia 20
Cancer 12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2020 were preventive care, vaccines, hospital care and inpatient care.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

doctor visit 629
hospital care 35
inpatient care 35
preventive care 116
vaccines 103

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 184
Female 135
Ethnicity
Non-Hispanic White 185
Black 0
Hispanic 33
Asian 68
Other 18
Native American 0
Age
From 65 to 74 151
From 75 to 84 86
85 and over 64
Less than 65 18

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2020

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2020 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension 71
High Cholesterol 55
Stroke 6
Ischemic Heart Disease 35
Depression 22
Chronic Kidney Disease 34
Asthma 0
Osteoperosis 14
Atrial Fibrilation 11
Heart Failure 20
Chronic Obstructive Pulmonary Disease 4
Diabetes 34
Dementia 19
Cancer 12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2021 were preventive care, vaccines, hospital care and inpatient care.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

diabetes management 14
doctor visit 715
hospital care 72
inpatient care 72
lab tests 14
preventive care 125
vaccines 112

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 193
Female 151
Ethnicity
Non-Hispanic White 205
Black 14
Hispanic 33
Asian 70
Other 22
Native American 0
Age
From 65 to 74 163
From 75 to 84 113
85 and over 52
Less than 65 16

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2021

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2021 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension 70
High Cholesterol 62
Stroke 5
Ischemic Heart Disease 30
Depression 19
Chronic Kidney Disease 26
Asthma 5
Osteoperosis 15
Atrial Fibrilation 11
Heart Failure 17
Chronic Obstructive Pulmonary Disease 8
Diabetes 31
Dementia 14
Cancer 12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA during 2022 were preventive care.

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

doctor visit 807
preventive care 18

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 207
Female 148
Ethnicity
Non-Hispanic White 213
Black 0
Hispanic 27
Asian 79
Other 0
Native American 0
Age
From 65 to 74 165
From 75 to 84 120
85 and over 54
Less than 65 16

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2022

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2022 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension 75
High Cholesterol 75
Stroke 10
Ischemic Heart Disease 20
Depression 15
Chronic Kidney Disease 22
Asthma 9
Osteoperosis 22
Atrial Fibrilation 16
Heart Failure 15
Chronic Obstructive Pulmonary Disease 10
Diabetes 33
Dementia 8
Cancer 16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

doctor visit 782

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 210
Female 149
Ethnicity
Non-Hispanic White 215
Black 0
Hispanic 29
Asian 77
Other 0
Native American 0
Age
From 65 to 74 165
From 75 to 84 129
85 and over 50
Less than 65 15

Conditions of Medicare patients treated by Dr. Christopher Sun, MD in 2023

The most common conditions of Medicare patients that Dr. Christopher Sun, MD treated during 2023 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension 75
High Cholesterol 75
Stroke 7
Ischemic Heart Disease 23
Depression 12
Chronic Kidney Disease 22
Asthma 8
Osteoperosis 20
Atrial Fibrilation 16
Heart Failure 14
Chronic Obstructive Pulmonary Disease 8
Diabetes 31
Dementia 8
Cancer 18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Christopher Sun, MD for Medicare patients.

The highest averages for the top procedures that Dr. Christopher Sun, MD treated as an internist in Redondo Beach, CA were lab tests, preventive care, blood draw and vaccines.

blood draw 201
diabetes management 64
doctor visit 868
hospital care 61
inpatient care 61
lab tests 738
preventive care 228
thoracic (chest) imaging 34
thyroid function tests 100
vaccines 141
X-rays 34

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Christopher Sun, MD.

Gender
Male 198
Female 147
Ethnicity
Black / African American 5
Asian / Pacific Islander 61
Non-Hispanic White 220
Native American / Alaskan Native 0
Hispanic 31
Other 7
Age
75 to 84 106
85 and over 70
Less than 65 21
65 to 74 148

Average of Total of Conditions of Medicare patients treated by Dr. Christopher Sun, MD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Christopher Sun, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension 72
High Cholesterol 61
Stroke 6
Ischemic Heart Disease 32
Depression 19
Chronic Kidney Disease 31
Asthma 6
Osteoporosis 14
Heart Failure 19
Chronic Obstructive Pulmonary Disease 9
Diabetes 32
Atrial Fibrillation 13
Cancer 13
Dementia 16

Education & Training

Dr. Christopher Sun, MD graduated from University of Dundee School of Medicine in 2003. He completed residency at Providence St. Vincent Medical Center, Portland. He is certified by the American Board of Internal Medicine, Internal Medicine and has a state license in California.

Medical School: University of Dundee School of Medicine (2003)

Residency: Providence St. Vincent Medical Center, Portland (2006)

Board Certification: American Board of Internal Medicine, Internal Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Christopher Sun, MD is associated with these hospitals and organizations:

Providence
Providence Little Company of Mary Medical Center Torrance
Providence Medical Institute

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Christopher Sun, MD appears to accept the following insurance providers: TRICARE, Anthem Blue Cross HMO, Aetna PPO, MultiPlan PPO, Anthem Blue Cross PPO, Aetna HMO, United Healthcare PPO, Blue Shield of California, United Healthcare HMO, Anthem, Medicare Advantage, Humana Medicare Advantage, CIGNA PPO, Health Net PPO, Health Net HMO, CIGNA HMO and CoventryFirst Health PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Christopher Sun, MD accepts the following insurance providers:

TRICARE
Anthem Blue Cross HMO
Aetna PPO
MultiPlan PPO
Anthem Blue Cross PPO
Aetna HMO
United Healthcare PPO
Blue Shield of California
United Healthcare HMO
Anthem
Medicare Advantage
Humana Medicare Advantage
CIGNA PPO
Health Net PPO
Health Net HMO
CIGNA HMO
CoventryFirst Health PPO

Ratings & Reviews

Dr. Christopher Sun, MD has an exceptional overall rating with an average of 4.98 out of 5 stars based on 879 ratings. We collect ratings and reviews of Dr. Christopher Sun, MD from all over the web to help you find the right in Redondo Beach, CA. 

4.98
Overall Rating
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Reviews From Around The Web
Overall Rating: 5.0 2024-03-08
Patient verified via Press Ganey
You know I always brag about the doctors that I have on my care team Dr son has done an excellent job with taking good care of me and sending me to All the Right specialist that I need to go to so I can stay around in this world for a little bit longer you know I have diabetes some amputee I have high blood pressure and he takes care of me I have a cardiac doctor I have this doctor this doctor coming from Northern California and night in 2020 I didn't have any of these doctors I had a doctor that would just write scripts and that was it Dr Sun is a good doctor and I'd recommend him to anybody I feel that I'm in better help now since I've been with Providence medical team and 2020 then I felt in 2018 because I wasn't getting the care that I get now I would recommend Providence to anybody I don't like waiting so long like I have to wait sometimes when you have good doctors they have a lot of patience and you need to bring your patience because sometimes you have to wait
Overall Rating: 5.0 2025-03-15
Patient verified via Press Ganey
Dr. Sun is one of the most competent, caring, kind, compassionate and proactive drs I have ever seen. Other patients in the waiting room echo this opinion and feel so grateful that he is so thorough and conscientious. I told the nurse that I was so impressed with his prompt replies the same day and that he often replies at 7:00 pm. The nurse said that Dr. Sun is so conscientious that he even replies to patients who email him on the weekend that same weekend. He must be one of the hardest working and most proactive drs. I have ever seen. I feel that I will have less office visits due to him helping me stay healthier and that I will live longer with fewer medicalProblems due to his fantastic care. The call center operator know that Dr. Sun has a huge fan base and said that he is one of the most requested drs in internal medicine.
Overall Rating: 5.0 2023-09-26
Patient verified via Press Ganey
Dr Sun is very knowledgeable and very helpful in regarding to his patients. He never rush us in regarding to the questions we have he always try to accommodate our need. He really cares about his patients. This appointment was last minute, but he's trying to accommodate us despite his busy schedules. We don't mind waiting until he's available to talk to us and to help us because we know that he can help us and assist us in anyway he can. He's very humble and very Attentive to what we need. We felt really cared for and provided for. Dr Sun is a really good provider that goes beyond what is expected of him to make sure his patients are well and healthy
Overall Rating: 5.0 2025-10-23
Patient verified via Press Ganey
I've been seeing Dr. Sun for over five years, and I couldn't ask for a better primary care physician. Even though I only visit him annually, he always remembers me and takes the time to listen carefully to all of my health concerns. Dr. Sun is incredibly attentive, thoughtful, and genuinely interested in his patients' well-being. He explains things clearly and always offers helpful, practical advice for maintaining better health. I've already referred several friends to him-though it's not easy to get an appointment because he's in such high demand. Dr. Sun is truly one of those rare doctors who combine deep knowledge with genuine compassion.
Overall Rating: 5.0 2025-02-07
Patient verified via Press Ganey
Dr Sun is always caring and thorough. You can tell he genuinely cares about his patients. He spends time and does not rush. He listens attentively and is very easy to talk to. I've been a patient for a while now and understand why getting appointments can be difficult. Good doctors are in demand and that being said I definitely want to compliment how timely Dr Sun responds to my chart emails. This is such a comfort for patients who maybe can't get an appointment but know he will respond promptly to questions asked. He is a true professional!
Overall Rating: 5.0 2025-01-18
Patient verified via Press Ganey
Dr. Sun and his team are excellent. I have been under his care for many years now, and each visit he checks my current health situation with past notes, and keeps me on top of things I need to do right now and in the future to stay as healthy as possible. He listens thoroughly, cares as If he's family, and provides great personalized care. I always feel like my concerns are heard and met with solutions for my best health. He and his team really go above and beyond. I am truly thankful to have found wonderful, Dr. Sun. Thank you )
Overall Rating: 5.0 2024-01-28
Patient verified via Press Ganey
For this routine follow-up appt, abnormal lab result appeared and this provider presented information about the lab, possible causes, physical exam, and treatment procedures including US and referral to specialist. Even ordered a follow-up appt with him. That's why we continue to go to Dr. Sun because he's thorough and gives a complete picture of what's happening.And this totally reinsures us that he "knows what he is dong and truly and really cares about our wellbeing.
Overall Rating: 5.0 2025-11-15
Patient verified via Press Ganey
I am a new patient for Dr. Sun and my experience was great. It is a little soon to answer some of the questions seeing as to it being my first interaction with him. In short, I don't have enough history with doctor Sun to make my answers relevant to some of the questions. I really appreciated Dr. Sun and his explanation and listening to my concerns. Since I am a first time patient I have not shared any or much of my or my family's medical history.
Overall Rating: 5.0 2024-11-02
Patient verified via Press Ganey
I had been the hospital over the weekend with what at first was thought to be a stroke. On Monday morning zI received a call from Dr Sun's office with an appointment for the next day. I was surprised and relieved that he was able to see so soon after being released from the hospital. Even though it turned not being a stroke Dr Sun was still concerned and zI felt better knowing he had reviewed all my tests and was up to date on what was going on.
Overall Rating: 5.0 2023-10-30
Patient verified via Press Ganey
I have received great service from Dr Christopher Sun. He explained everything to me since I am a new patient and I feel very comfortable with him, it took me a very long time to chose a provider that I can trust however my mother has been a patient for Dr Sun for 10 years and I do appreciate his kindness and services he provided to her over the past years and I am looking forward to be his loyal patient in the future and thank you very much.

To see all 879 reviews for Dr. Christopher Sun, MD, view their full profile.

General Payments

These charts describe general payments received by Dr. Christopher Sun, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Ironwood Pharmaceuticals, Inc $3,929 VIBERZI
$3,375 		LINZESS
$331 		DUZALLO
$125 		LINZESS 290 mcg
$98
Gilead Sciences Inc $1,217 Viread
$570 		Vemlidy
$120 		Harvoni
$93
$434
Gilead Sciences, Inc. $826 Vemlidy
$680
$146
AstraZeneca Pharmaceuticals LP $415 SYMBICORT
$245 		BRILINTA
$93 		FARXIGA
$77
Celgene Corporation $398 Otezla
$398
Other $2,306 LigaSure
$228 		VIBERZI
$228 		Lupron
$198 		QVAR
$188 		XELJANZ
$185 		Other
$1,279
Types of Payments
Food and Beverage $9,063
Education $29

Biography

Dr. Christopher Sun has received a 5.0 out of 5 star rating by his patients. His areas of expertise include the following: alcohol abuse, nasal congestion (stuffy nose), and runner's knee (patellofemoral syndrome). He is an in-network provider for several insurance carriers, including Anthem, Blue California, and CIGNA Plans. After completing medical school at the University of Dundee School of Medicine, Dr. Sun performed his residency at Providence St. Vincent Medical Center, Portland. His professional affiliations include Providence Medical Institute and Providence Little Company of Mary Medical Center Torrance. Doctor.com reports that he is accepting new patients at his office in Redondo Beach, CA.

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