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Dr. Susan C. Ahern, DO

Accepting New Patients

(Dr. Susan Cox Ahern, D.O.)

(5 Ratings)

Specializes in: Adult Endocrinology

Western University of Health Sciences, College of Osteopathic Medicine of the Pacific (2011)

Professional interests include: pituitary disorders, osteoporosis, thyroid problems, and more.

100 Moody Court Suite 200
Thousand Oaks, CA 91360

(805) 418-3500

Dr. Susan C. Ahern, DO is an endocrinologist in Thousand Oaks, CA specializing in adult endocrinology. She graduated from Western University of Health Sciences, College of Osteopathic Medicine of the Pacific in 2011 and has 14 years of experience. Dr. Susan C. Ahern, DO is affiliated with UCLA Health and THE REGENTS OF THE UNIVERSITY OF CALIFORNIA.

Office Locations

100 Moody Court Suite 200
Thousand Oaks, CA 91360

(805) 418-3500

(805) 418-3505

open_in_new

6633 Telephone Road Suite 212
Ventura, CA 93003

(805) 644-9121

(805) 644-9131

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Some issues Dr. Susan C. Ahern, DO can help you with:

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

2014 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

hospital care	21
inpatient care	21

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Ethnicity**
Non-Hispanic White	13
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2014

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2014 were hypertension, chronic kidney disease, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	68
Depression	44
Chronic Kidney Disease	68
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	44
Chronic Obstructive Pulmonary Disease	0
Diabetes	56
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

hospital care	128
inpatient care	128

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	76
Female	78

**Ethnicity**
Non-Hispanic White	82
Black	0
Hispanic	46
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	38
85 and over	30
Less than 65	38

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2015

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2015 were hypertension, chronic kidney disease, high cholesterol and diabetes.

Hypertension	75
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	53
Depression	43
Chronic Kidney Disease	65
Asthma	17
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	44
Chronic Obstructive Pulmonary Disease	29
Diabetes	53
Dementia	23
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

doctor visit	103

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	29
Female	49

**Ethnicity**
Non-Hispanic White	65
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	18
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2017

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2017 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	46
Depression	36
Chronic Kidney Disease	41
Asthma	19
Osteoperosis	17
Atrial Fibrilation	19
Heart Failure	28
Chronic Obstructive Pulmonary Disease	28
Diabetes	38
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2018 were blood draw, lab tests, diabetes management and preventive care.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

blood draw	128
diabetes management	61
doctor visit	507
lab tests	61
preventive care	46

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	77
Female	119

**Ethnicity**
Non-Hispanic White	149
Black	0
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	62
85 and over	12
Less than 65	20

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2018

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2018 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	73
Stroke	6
Ischemic Heart Disease	43
Depression	33
Chronic Kidney Disease	54
Asthma	17
Osteoperosis	18
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	23
Diabetes	53
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2019 were blood draw, lab tests, preventive care and diabetes management.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

blood draw	184
diabetes management	98
doctor visit	871
lab tests	163
preventive care	163

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	127
Female	203

**Ethnicity**
Non-Hispanic White	261
Black	0
Hispanic	40
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	101
85 and over	19
Less than 65	32

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2019

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2019 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	73
High Cholesterol	72
Stroke	7
Ischemic Heart Disease	38
Depression	33
Chronic Kidney Disease	48
Asthma	12
Osteoperosis	22
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	51
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2020 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

blood draw	150
diabetes management	114
doctor visit	827
lab tests	168
preventive care	168

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	156
Female	253

**Ethnicity**
Non-Hispanic White	318
Black	0
Hispanic	54
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	134
85 and over	34
Less than 65	36

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2020

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2020 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	38
Depression	30
Chronic Kidney Disease	50
Asthma	11
Osteoperosis	25
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	11
Diabetes	54
Dementia	11
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2021 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

blood draw	188
diabetes management	147
doctor visit	1103
lab tests	199
preventive care	199

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	189
Female	329

**Ethnicity**
Non-Hispanic White	408
Black	0
Hispanic	61
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	269
From 75 to 84	155
85 and over	41
Less than 65	53

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2021

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2021 were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	72
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	41
Asthma	10
Osteoperosis	27
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	52
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2022 were blood draw, lab tests, preventive care and diabetes management.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

blood draw	89
diabetes management	65
doctor visit	989
lab tests	79
preventive care	79

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	138
Female	268

**Ethnicity**
Non-Hispanic White	318
Black	0
Hispanic	45
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	127
85 and over	21
Less than 65	47

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2022

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2022 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	23
Asthma	16
Osteoperosis	30
Atrial Fibrilation	22
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	53
Dementia	5
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA during 2023 were blood draw, lab tests, preventive care and diabetes management.

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

blood draw	82
diabetes management	28
doctor visit	1089
lab tests	28
preventive care	28

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	159
Female	287

**Ethnicity**
Non-Hispanic White	353
Black	0
Hispanic	43
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	142
85 and over	24
Less than 65	38

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2023

The most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated during 2023 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	72
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	25
Asthma	16
Osteoperosis	32
Atrial Fibrilation	20
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	50
Dementia	5
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Volume of procedures performed by Dr. Susan C. Ahern, DO for Medicare patients.

The highest averages for the top procedures that Dr. Susan C. Ahern, DO treated as an endocrinologist in Thousand Oaks, CA were blood draw, lab tests, preventive care and diabetes management.

blood draw	136
diabetes management	85
doctor visit	784
hospital care	74
inpatient care	74
lab tests	116
preventive care	113

Average Medicare Patient Data From 2014 - 2023

Information about Medicare patients treated by Dr. Susan C. Ahern, DO.

**Gender**
Male	105
Female	176

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	7
Non-Hispanic White	218
Native American / Alaskan Native	0
Hispanic	34
Other	4

**Age**
75 to 84	86
85 and over	20
Less than 65	29
65 to 74	144

Average of Total of Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO From 2014 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Susan C. Ahern, DO treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	73
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	43
Depression	32
Chronic Kidney Disease	46
Asthma	13
Osteoporosis	19
Heart Failure	25
Chronic Obstructive Pulmonary Disease	16
Diabetes	51
Atrial Fibrillation	14
Cancer	14
Dementia	7

Education & Training

Dr. Susan C. Ahern, DO graduated from Western University of Health Sciences, College of Osteopathic Medicine of the Pacific in 2011. She completed residency at University of California, Irvine Affiliated Hospitals. She is certified by the Internal Medicine, American Board of Internal Medicine and has a state license in California.

Medical School: Western University of Health Sciences, College of Osteopathic Medicine of the Pacific (2011)

Residency: University of California, Irvine Affiliated Hospitals (2015)

Board Certification: Internal Medicine, American Board of Internal Medicine (2014)

Licensed In: California

Affiliations & Hospitals

Dr. Susan C. Ahern, DO is associated with these hospitals and organizations:

UCLA Health

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

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. Susan C. Ahern, DO appears to accept the following insurance providers: Cigna, TRICARE, Private Healthcare Systems (PHCS), Aetna, Blue Shield of California, MultiPlan, UnitedHealthcare, Anthem, Medicare Advantage, Prime Health, First Health, HealthSmart, Centivo, Health Net of California and UFCM Health System.

Insurance Accepted by Provider includes:

According to our sources, Dr. Susan C. Ahern, DO accepts the following insurance providers:

Cigna

TRICARE

Private Healthcare Systems (PHCS)

Aetna

Blue Shield of California

MultiPlan

UnitedHealthcare

Anthem

Medicare Advantage

Prime Health

First Health

HealthSmart

Centivo

Health Net of California

UFCM Health System

Ratings & Reviews

Dr. Susan C. Ahern, DO has an exceptional overall rating with an average of 5.0 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Susan C. Ahern, DO from all over the web to help you find the right in Thousand Oaks, CA.

Overall Rating

(5 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Susan C. Ahern, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Novo Nordisk Inc	$610 Wegovy $109	Saxenda $50	Ozempic $32	$418
MannKind Corporation	$162 AFREZZA $162
Nevro Corp.	$148 Omnia $148
Medtronic MiniMed, Inc.	$121 Minimed 530G $121
Dexcom, Inc.	$116 DEXCOM G6 TRANSMITTER $116
Other	$66 SOLIRIS $23	FREESTYLE LIBRE 3 $22	TOUJEO $21

**Types of Payments**
Food and Beverage	$1,127
Education	$97

Biography

Dr. Susan Ahern specializes in adult endocrinology and practices in Thousand Oaks, CA and Ventura, CA. These areas are among Dr. Ahern's clinical interests: diabetes, thyroid problems, and pituitary disorders. She is professionally affiliated with UCLA Health. Before performing her residency at a hospital affiliated with the University of California, Irvine, Dr. Ahern attended Western University of Health Sciences, College of Osteopathic Medicine of the Pacific for medical school. Her average rating from her patients is 5.0 stars (out of 5). Dr. Ahern is an in-network provider for several insurance carriers, including Anthem, UnitedHealthcare, and Blue California. She has received the following distinctions: Super Doctors Southern California Rising Stars and Super Doctors Southern California Rising Stars, 2020 LGBTQ+ champion. She has an open panel in according to UCLA Health.

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Dr. Susan C. Ahern, DO

Office Locations

Some issues Dr. Susan C. Ahern, DO can help you with:

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2015

Medicare Procedure and Patient Information

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Average Medicare Patient Data From 2014 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Susan C. Ahern, DO From 2014 - 2023

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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