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Dr. Sunu S. Eapen, MD

Accepting New Patients

(226 Ratings)

Specializes in: General Internal Medicine

University of Wisconsin School of Medicine and Public Health (2003)

Professional interests include: women's health issues, high cholesterol (hyperlipidemia), hypertension (high blood pressure), and more.

1350 Sunny Slope Road
Brookfield, WI 53005

(262) 798-8750

Dr. Sunu S. Eapen, MD is a general internist in Brookfield, WI specializing in general internal medicine. She graduated from University of Wisconsin School of Medicine and Public Health in 2003 and has 23 years of experience. Dr. Sunu S. Eapen, MD is affiliated with Froedtert & the Medical College of Wisconsin Regional Health Network.

Office Locations

1350 Sunny Slope Road
Brookfield, WI 53005

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Unable to locate address.

W126n7338 Flint Drive
Menomonee Falls, WI 53051

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Some issues Dr. Sunu S. Eapen, MD can help you with:

Asthma

Asthma is a chronic lung disease where the tissue and airways of the lungs become extremely sensitive to certain substances. When these substances are breathed in, the lungs become inflamed. The muscles around the airways tighten and squeeze the lungs, and passages within the lungs swell and tighten. The airways themselves produce mucus, which further clogs the tightened, swollen airways. A person having an asthma attack finds it very difficult to breathe, and a severe attack can even be fatal.

Asthma affects people of all ages, but people with asthma are most often diagnosed as children. Symptoms can include wheezing, a tight feeling in the chest, shortness of breath, and coughing. Some people have mild symptoms all the time, and some people have no symptoms at all, but everyone with asthma is susceptible to occasional severe attacks or flare-ups of symptoms when they are exposed to triggers. Triggers vary widely but can include:

Allergens (dust mites, pet fur, mold, pollen, grass)
Irritants (smoke, pollution, dust, chemicals)
Viral infections
Physical activity, especially outdoors
Certain medications or chemicals in foods (aspirin, sulfites)

Treatment for most asthma patients involves three steps. Patients learn what their asthma triggers are and avoid them. They take a daily control medication, usually an inhaled corticosteroid, to reduce inflammation in the lungs. Also, they have rescue medication with them at all times to take in case of a severe attack. These quick-acting inhaled medications relax the muscles around the airways and allow the lungs to open up for air.

There is no cure for asthma, but with treatment it should not interfere with daily life and activities.

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.

Noteworthy Medicare Patient Procedures Performed by Dr. Sunu S. Eapen, MD in 2024

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Affordability:

In 2024, Dr. Sunu S. Eapen, MD had a list price for flu shot, flu vaccine, immunization (preventive vaccines), and vaccines that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Wisconsin. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Affordability:

preventive care

In 2024, Dr. Sunu S. Eapen, MD had a list price for preventive care that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Wisconsin. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2012 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	460
lab tests	12
preventive care	53
vaccines	53

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2013 were preventive care and vaccines.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	433
preventive care	62
vaccines	62

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	40
Female	109

**Ethnicity**
Non-Hispanic White	129
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	59
From 75 to 84	38
85 and over	15
Less than 65	37

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2013

Hypertension	61
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	24
Depression	23
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	9
Diabetes	25
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2014 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	480
lab tests	21
preventive care	84
vaccines	84

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	45
Female	121

**Ethnicity**
Non-Hispanic White	139
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	39
85 and over	15
Less than 65	34

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2014

Hypertension	58
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	23
Depression	19
Chronic Kidney Disease	21
Asthma	8
Osteoperosis	7
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2015 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	421
lab tests	23
preventive care	145
vaccines	145

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	92
Female	240

**Ethnicity**
Non-Hispanic White	278
Black	0
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	88
85 and over	32
Less than 65	58

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2015

Hypertension	66
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	23
Depression	31
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	11
Atrial Fibrilation	8
Heart Failure	10
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2016 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	387
lab tests	15
preventive care	104
vaccines	104

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	44
Female	121

**Ethnicity**
Non-Hispanic White	142
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	39
85 and over	15
Less than 65	29

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2016

Hypertension	62
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	25
Depression	30
Chronic Kidney Disease	27
Asthma	19
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2017 were preventive care and vaccines.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	357
preventive care	88
vaccines	88

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	51
Female	128

**Ethnicity**
Non-Hispanic White	154
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	41
85 and over	14
Less than 65	34

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2017

Hypertension	56
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	22
Depression	29
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	8
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2018 were preventive care and vaccines.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	346
preventive care	110
vaccines	110

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	50
Female	142

**Ethnicity**
Non-Hispanic White	162
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	44
85 and over	20
Less than 65	32

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2018

Hypertension	60
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	20
Depression	29
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2019 were preventive care and vaccines.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	531
preventive care	42
vaccines	42

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	81
Female	0

**Ethnicity**
Non-Hispanic White	237
Black	42
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	61
85 and over	29
Less than 65	63

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2019

Hypertension	63
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	27
Depression	31
Chronic Kidney Disease	31
Asthma	11
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2020 were preventive care and vaccines.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	236
preventive care	68
vaccines	68

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	51
Female	134

**Ethnicity**
Non-Hispanic White	164
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	44
85 and over	18
Less than 65	22

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2020

Hypertension	49
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	17
Depression	28
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	6
Atrial Fibrilation	8
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	19
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2021 were preventive care and vaccines.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	263
preventive care	34
vaccines	34

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	61
Female	149

**Ethnicity**
Non-Hispanic White	194
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	61
85 and over	24
Less than 65	20

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2021

Hypertension	50
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	21
Depression	25
Chronic Kidney Disease	29
Asthma	6
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	20
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2022 were preventive care.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	288
preventive care	11

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	49
Female	162

**Ethnicity**
Non-Hispanic White	196
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	54
85 and over	18
Less than 65	19

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2022

Hypertension	65
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	15
Depression	20
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	16
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	17
Dementia	5
Cancer	19

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	288

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	43
Female	146

**Ethnicity**
Non-Hispanic White	172
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	46
85 and over	20
Less than 65	18

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2023

Hypertension	65
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	16
Depression	23
Chronic Kidney Disease	23
Asthma	13
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	21
Dementia	0
Cancer	19

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI during 2024 were preventive care and vaccines.

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

doctor visit	296
preventive care	20
vaccines	20

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Male	36
Female	159

**Ethnicity**
Non-Hispanic White	180
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	51
85 and over	17
Less than 65	14

Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD in 2024

Hypertension	64
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	14
Depression	22
Chronic Kidney Disease	17
Asthma	15
Osteoperosis	19
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	20
Dementia	0
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Sunu S. Eapen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Sunu S. Eapen, MD treated as a general internist in Brookfield, WI were vaccines, preventive care and lab tests.

doctor visit	368
lab tests	17
preventive care	68
vaccines	73

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Sunu S. Eapen, MD.

**Gender**
Female	123
Male	49

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	0
Non-Hispanic White	165
Hispanic	5
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	18
75 to 84	46
Less than 65	29
65 to 74	96

Average of Total of Conditions of Medicare patients treated by Dr. Sunu S. Eapen, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Sunu S. Eapen, MD treated were hypertension, high cholesterol, depression and chronic kidney disease.

Hypertension	55
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	19
Depression	23
Chronic Kidney Disease	22
Asthma	9
Osteoporosis	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	21
Atrial Fibrillation	7
Dementia	2
Cancer	8

Education & Training

Dr. Sunu S. Eapen, MD graduated from University of Wisconsin School of Medicine and Public Health in 2003. She completed residency at Aurora Sinai Medical Center. She is certified by the Board Certification: Internal Medicine and has a state license in Wisconsin.

Medical School: University of Wisconsin School of Medicine and Public Health (2003)

Residency: Aurora Sinai Medical Center (2006)

Board Certification: Board Certification: Internal Medicine

Licensed In: Wisconsin

Ratings & Reviews

Dr. Sunu S. Eapen, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 226 ratings. We collect ratings and reviews of Dr. Sunu S. Eapen, MD from all over the web to help you find the right in Brookfield, WI.

4.91

Overall Rating

(226 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2021-12-09

Dr. Eapen
Has been my doctor for 15 years. She always has time to listen to my questions. Kind and compassionate and knowledgeable are her personality traits!

Reviews From Around The Web

Overall Rating: 5.0 2024-01-22

Patient verified via Press Ganey

Dr Eapen was very knowledgeable and thorough, with a great bedside manner!

Overall Rating: 5.0 2025-12-10

Patient verified via Press Ganey

Thanks so much for the great care!

Overall Rating: 4.0 2024-06-22

Patient verified via Press Ganey

Friendly, professional and kind.

Overall Rating: 5.0 2025-04-14

Patient verified via Press Ganey

It was very good.

General Payments

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

**Payments by Company**
E.R. Squibb & Sons, L.L.C.	$38 ELIQUIS $38
Exact Sciences Corporation	$20 The Cologuard Plus Collection Kit $20

**Types of Payments**
Food and Beverage	$57

Biography

I believe in patient-centered medicine and strive to empower my patients to be active participants in their health care decisions. I enjoy educating patients of their health conditions. My focus is on general adult preventive medicine with an emphasis in women's health, diabetes, cardiovascular disease and cancer prevention.