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Dr. Christina Nakyung Ryu, MD

Accepting New Patients

(150 Ratings)

Specializes in: Adult Endocrinology

Professional interests include: hypopituitarism, type 2 diabetes, hirsutism (excessive hair growth), and more.

1100 Van Ness Avenue Floor 6
San Francisco, CA 94109

(415) 600-0110

Dr. Christina Nakyung Ryu, MD is an endocrinologist in San Francisco, CA specializing in adult endocrinology. Dr. Christina Nakyung Ryu, MD is affiliated with Brown and Toland Physicians, Sutter Health and SUTTER BAY MEDICAL FOUNDATION.

Office Locations

Brown and Toland Physicians

1100 Van Ness Avenue Floor 6
San Francisco, CA 94109

(415) 600-0110

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1580 Valencia Street Floor 3
San Francisco, CA 94110

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Brown and Toland Physicians

899 Valencia Street Ground Floor
San Francisco, CA 94110

(415) 600-6960

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Some issues Dr. Christina Nakyung Ryu, MD can help you with:

Polycystic Ovary Syndrome (PCOS)

Polycystic ovarian syndrome is a common endocrine disorder that causes symptoms such as acne, facial hair, and weight gain. It is often diagnosed when patients experience problems getting pregnant, because PCOS can interfere with ovulation. There is no cure for PCOS, but there are effective treatments that can lessen the severity of the symptoms.

Despite the name, not everyone with polycystic ovarian syndrome develops cysts on their ovaries. It is also possible to have ovarian cysts without having PCOS. The symptoms of polycystic ovarian syndrome are actually related to insulin resistance, a condition where the insulin made by the body is not effectively recognized by the cells. This causes the pancreas to release higher levels of insulin in order to keep blood sugar levels stable, and the excess insulin interferes with hormone production in the pituitary and ovaries, causing the PCOS symptoms.

The symptoms of PCOS include:

Weight gain
Acne
Facial or body hair
Thinning head hair
Missing or irregular periods
Infertility

PCOS is a syndrome, which means that if patients have PCOS, they might not have each and every symptom. Even a few of them might be enough to have physicians check for polycystic ovarian syndrome. A doctor might perform an exam and order blood tests to measure hormone levels.

Treatment for PCOS may include:

Insulin sensitizers, which help the body use insulin more effectively, lowering hormone levels. The most commonly used insulin sensitizer is metformin.
Weight loss. Being overweight does not cause PCOS, and PCOS can make losing weight difficult. Still, weight loss can improve symptoms for many women.
Birth control pills to regulate menstruation and sometimes reduce symptoms such as acne.
Fertility medications, especially medications to stimulate ovulation such as clomiphene.
Anti-androgen medications, which work to treat symptoms such as acne and facial hair.
Low-carb diets, which work similarly to insulin sensitizers to lower hormone levels and help reduce weight.
Ovarian drilling or resectioning, surgical procedures sometimes performed if infertility is a persistent problem. These procedures open up the wall of the ovary to temporarily make ovulation more likely.

Polycystic ovarian syndrome is one of the most common endocrine disorders affecting women. Left untreated, it can increase the risk of diabetes, heart disease, and certain cancers. Fortunately there are many good treatment options available.

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Christina Nakyung Ryu, MD treated as an endocrinologist in San Francisco, CA during 2022 were lab tests, preventive care and diabetes management.

Volume of procedures performed by Dr. Christina Nakyung Ryu, MD for Medicare patients.

diabetes management	47
doctor visit	147
lab tests	47
preventive care	47

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina Nakyung Ryu, MD.

**Gender**
Male	37
Female	45

**Ethnicity**
Non-Hispanic White	38
Black	0
Hispanic	16
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Christina Nakyung Ryu, MD in 2022

The most common conditions of Medicare patients that Dr. Christina Nakyung Ryu, MD treated during 2022 were high cholesterol, hypertension, diabetes and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	38
Depression	23
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	33
Atrial Fibrilation	23
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	65
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Christina Nakyung Ryu, MD treated as an endocrinologist in San Francisco, CA during 2023 were lab tests, diabetes management, preventive care and hospital care.

Volume of procedures performed by Dr. Christina Nakyung Ryu, MD for Medicare patients.

diabetes management	99
doctor visit	390
hospital care	62
inpatient care	62
lab tests	99
preventive care	82

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Christina Nakyung Ryu, MD.

**Gender**
Male	68
Female	114

**Ethnicity**
Non-Hispanic White	118
Black	0
Hispanic	16
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	91
From 75 to 84	52
85 and over	17
Less than 65	22

Conditions of Medicare patients treated by Dr. Christina Nakyung Ryu, MD in 2023

The most common conditions of Medicare patients that Dr. Christina Nakyung Ryu, MD treated during 2023 were high cholesterol, hypertension, diabetes and osteoperosis.

Hypertension	67
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	26
Depression	26
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	42
Atrial Fibrilation	20
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	44
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2022 - 2023

Volume of procedures performed by Dr. Christina Nakyung Ryu, MD for Medicare patients.

The highest averages for the top procedures that Dr. Christina Nakyung Ryu, MD treated as an endocrinologist in San Francisco, CA were lab tests, diabetes management, preventive care and hospital care.

diabetes management	73
doctor visit	268
hospital care	62
inpatient care	62
lab tests	73
preventive care	64

Average Medicare Patient Data From 2022 - 2023

Information about Medicare patients treated by Dr. Christina Nakyung Ryu, MD.

**Gender**
Male	52
Female	79

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	24
Non-Hispanic White	78
Native American / Alaskan Native	0
Hispanic	16
Other	0

**Age**
75 to 84	39
85 and over	8
Less than 65	11
65 to 74	63

Average of Total of Conditions of Medicare patients treated by Dr. Christina Nakyung Ryu, MD From 2022 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Christina Nakyung Ryu, MD treated were high cholesterol, hypertension, diabetes and osteoperosis.

Hypertension	71
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	32
Asthma	5
Osteoporosis	37
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	54
Atrial Fibrillation	21
Cancer	16
Dementia	0

Education & Training

She completed residency at California Pacific Medical Center. She is certified by the Endocrinology, Diabetes and Metabolism - Board Certified and has a state license in California.

Residency: California Pacific Medical Center

Board Certification: Endocrinology, Diabetes and Metabolism - Board Certified

Licensed In: California

Affiliations & Hospitals

Dr. Christina Nakyung Ryu, MD is associated with these hospitals and organizations:

Brown and Toland Physicians

Sutter Health

SUTTER BAY MEDICAL FOUNDATION

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. Christina Nakyung Ryu, MD appears to accept the following insurance providers: TRICARE, Cigna, Private Healthcare Systems (PHCS), Blue Shield of California, Anthem Blue Cross of California, MultiPlan, WellCare, Health Net Medicare Advantage HMO, Medicare Advantage, United Healthcare, Magellan Health Services, Alliance PPO, HealthSmart, Accepted Provider Networks of America Plans: PPO, Accepted Chinese Community Health Plan Plans: Active Choice- PPO Silver: Amber 50 HMO Silver: American Indian/Alaskan Native (Covered CA for Individual & Families): Bronze 60 HDHP HMO (including..., Accepted Sutter Health Plan Plans: Individual and Family Plan HMO: Large and Small Group HMO and Accepted Aetna Plans: Aetna Choice POS II: Aetna Select EPO: Aetna Select Open Access: Aetna Signature Administrators (ASA): Aetna Student Health Program: Health Fund HMO (aka HMO/HRA): Health Fund....

Insurance Accepted by Provider includes:

According to our sources, Dr. Christina Nakyung Ryu, MD accepts the following insurance providers:

TRICARE

Cigna

Private Healthcare Systems (PHCS)

Blue Shield of California

Anthem Blue Cross of California

MultiPlan

WellCare

Health Net Medicare Advantage HMO

Medicare Advantage

United Healthcare

Magellan Health Services

Alliance PPO

HealthSmart

Accepted Provider Networks of America Plans: PPO

Accepted Chinese Community Health Plan Plans: Active Choice- PPO Silver: Amber 50 HMO Silver: American Indian/Alaskan Native (Covered CA for Individual & Families): Bronze 60 HDHP HMO (including...

Accepted Sutter Health Plan Plans: Individual and Family Plan HMO: Large and Small Group HMO

Accepted Aetna Plans: Aetna Choice POS II: Aetna Select EPO: Aetna Select Open Access: Aetna Signature Administrators (ASA): Aetna Student Health Program: Health Fund HMO (aka HMO/HRA): Health Fund...

Ratings & Reviews

Dr. Christina Nakyung Ryu, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 150 ratings. We collect ratings and reviews of Dr. Christina Nakyung Ryu, MD from all over the web to help you find the right in San Francisco, CA.

4.9

Overall Rating

(150 Ratings)

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General Payments

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

**Payments by Company**
MannKind Corporation	$46 AFREZZA $46
Dexcom, Inc.	$21 DEXCOM G6 TRANSMITTER $21
Tandem Diabetes Care, Inc.	$15 t:slim X2 Insulin Pump with Control-IQ $15

**Types of Payments**
Food and Beverage	$82

Biography

Dr. Christina Ryu is a specialist in adult endocrinology in San Francisco, CA. Dr. Ryu's residency was performed at California Pacific Medical Center. Her areas of expertise include the following: type 2 diabetes, graves disease, and thyroid cancer. She accepts Magellan Health Services, Anthem, and Blue California, in addition to other insurance carriers. In addition to English, Dr. Ryu (or staff) speaks Spanish and Korean. She is professionally affiliated with Brown and Toland Physicians and Sutter Health. Dr. Ryu has an open panel in San Francisco, CA according to Brown and Toland Physicians.