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Home > CA Providers > Obstetricians & Gynecologists: OB-GYNs

Dr. Douglas Edward Rittenhouse, MD

Accepting New Patients

(5 Ratings)

Specializes in: Obstetrics & Gynecology

Creighton University School of Medicine

Professional interests include: fibroids (leiomyoma), ovarian cyst, cervical funneling, and more.

1850 Sullivan Avenue Suite 550
Daly City, CA 94015

(650) 756-2404

Dr. Douglas Edward Rittenhouse, MD is an obstetrician and gynecologist in Daly City, CA specializing in obstetrics & gynecology. He graduated from Creighton University School of Medicine. Dr. Douglas Edward Rittenhouse, MD is affiliated with AHMC Healthcare, Sutter Health and Hill Physicians.

Office Locations

Hill Physicians

1850 Sullivan Avenue Suite 550
Daly City, CA 94015

(650) 756-2404

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Some issues Dr. Douglas Edward Rittenhouse, MD can help you with:

Hysteroscopy

A hysteroscopy is a diagnostic procedure performed to examine the inside of the uterus. A thin tube with a camera and light at the end, called a hysteroscope, is inserted through the vagina. It allows the physician to view the cervix and uterine walls. Sometimes, gas or liquid is used to expand the uterus and allow a better view. If necessary, tiny instruments can also be passed through the tube and used for certain procedures, such as taking a biopsy or removing a polyp.

Hysteroscopy is often done to figure out the cause of abnormal menstrual bleeding. However, it can also be used to:

Identify the cause of recurrent miscarriage
Remove polyps or fibroids, non-cancerous growths in the uterus
Remove adhesions, scar tissue within the uterus
Identify uterine septums, a wall of tissue dividing the uterus
Perform ablation, the removal of excess uterine lining

If surgery is necessary, hysteroscopy is often used along with laparoscopy, a kind of surgery performed through small incisions in the abdomen. Tiny tools are passed through the incisions, and the hysteroscope guides the doctors while surgery is performed.

Laparoscopic Surgery

Laparoscopic surgery is a kind of minimally invasive surgery using a thin, narrow tube called a laparoscope. Usually performed on the abdomen or the pelvic region, the surgeon makes a few very small incisions instead of one large one.

During the procedure, the surgeon inserts the laparoscope, which contains a light and camera that allows the surgeon to see what is happening inside the body. Then tiny tools are placed through the small openings and used to perform the surgery.

The most common laparoscopic surgery is gallbladder removal, but laparoscopic surgery may also be used for the removal of a kidney or appendix, to treat certain cysts and tumors, for bariatric surgery, for some GERD treatments, or for hernia repairs, among others.

Because laparoscopic surgery only uses a few tiny incisions, the scars are minimal and recovery is easier than with open surgery.

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

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

doctor visit	12

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2013 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	18
gynecologic procedures	18

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	42

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

**Age**
From 65 to 74	19
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2013

Hypertension	64
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2014 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	14
gynecologic procedures	14

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	31

**Ethnicity**
Non-Hispanic White	14
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	11
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2014

Hypertension	42
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

doctor visit	15

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	76

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2015

Hypertension	74
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2016 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	12
doctor visit	16
gynecologic procedures	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	32

**Ethnicity**
Non-Hispanic White	14
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	12
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2016

Hypertension	63
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	50
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2017 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	30
doctor visit	59
gynecologic procedures	30

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	69

**Ethnicity**
Non-Hispanic White	32
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	30
From 75 to 84	20
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2017

Hypertension	64
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	17
Depression	20
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2018 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	25
doctor visit	21
gynecologic procedures	25

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	53

**Ethnicity**
Non-Hispanic White	23
Black	0
Hispanic	0
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	29
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2018

Hypertension	72
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2019 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	15
gynecologic procedures	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	36

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

**Age**
From 65 to 74	17
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2019

Hypertension	53
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2020 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	15
doctor visit	13
gynecologic procedures	15

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	44

**Ethnicity**
Non-Hispanic White	18
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	16
From 75 to 84	14
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2020

Hypertension	64
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2021 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	29
gynecologic procedures	29

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	42

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

**Age**
From 65 to 74	21
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2021

Hypertension	62
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA during 2022 were breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

breast exam	15
doctor visit	16
gynecologic procedures	15

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	35

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

**Age**
From 65 to 74	14
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD in 2022

Hypertension	60
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Douglas Edward Rittenhouse, MD for Medicare patients.

The highest averages for the top procedures that Dr. Douglas Edward Rittenhouse, MD treated as an obstetrician and gynecologist in Daly City, CA were breast exam and gynecologic procedures.

breast exam	19
doctor visit	21
gynecologic procedures	19

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD.

**Gender**
Male	0
Female	41

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	1
Non-Hispanic White	16
Native American / Alaskan Native	0
Hispanic	5
Other	0

**Age**
75 to 84	3
85 and over	0
Less than 65	0
65 to 74	19

Average of Total of Conditions of Medicare patients treated by Dr. Douglas Edward Rittenhouse, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Douglas Edward Rittenhouse, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	56
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	1
Depression	1
Chronic Kidney Disease	4
Asthma	0
Osteoporosis	0
Heart Failure	1
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Atrial Fibrillation	0
Dementia	0
Cancer	0

Education & Training

Dr. Douglas Edward Rittenhouse, MD graduated from Creighton University School of Medicine. He completed residency at Santa Clara Valley Medical Center. He is certified by the Obstetrics and Gynecology - Board Certified and has a state license in California.

Medical School: Creighton University School of Medicine

Residency: Santa Clara Valley Medical Center

Board Certification: Obstetrics and Gynecology - Board Certified

Licensed In: California

Affiliations & Hospitals

Dr. Douglas Edward Rittenhouse, MD is associated with these hospitals and organizations:

AHMC Healthcare

Sutter Health

Hill Physicians

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. Douglas Edward Rittenhouse, MD appears to accept the following insurance providers: Cigna, Aetna, Blue Shield of California, Anthem, UnitedHealthcare, Health Net, Central Health Plan, CCHP Health Plan (Chinese Community Health Plan) and Canopy Health.

Insurance Accepted by Provider includes:

According to our sources, Dr. Douglas Edward Rittenhouse, MD accepts the following insurance providers:

Cigna

Aetna

Blue Shield of California

Anthem

UnitedHealthcare

Health Net

Central Health Plan

CCHP Health Plan (Chinese Community Health Plan)

Canopy Health

Ratings & Reviews

Dr. Douglas Edward Rittenhouse, MD 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. Douglas Edward Rittenhouse, MD from all over the web to help you find the right in Daly City, CA.

Overall Rating

(5 Ratings)

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General Payments

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

**Payments by Company**
Applied Medical Resources Corporation	$834 GelPOINT V-Path $823	$12
AbbVie, Inc.	$212 Lupron $108	Lupaneta $61	Orilissa $43
Avion Pharmaceuticals	$199 Balcoltra $154	Prenate Mini $45
AbbVie Inc.	$198 LO LOESTRIN FE $150	ORIAHNN $26	Orilissa $21
Amgen Inc.	$194 Prolia $176	$17
Other	$1,282 Makena $90	myRisk $83	Osphena $83	Da Vinci Surgical System $68	Skyla $67	Other $892

**Types of Payments**
Food and Beverage	$2,007
Travel and Lodging	$705
Education	$208

Biography

Dr. Douglas Rittenhouse is an obstetrics & gynecology specialist. On average, patients gave him a rating of 5.0 stars (out of 5). Clinical interests for Dr. Rittenhouse include menopause, colposcopy, and gestational diabetes (diabetes during pregnancy). His professional affiliations include Seton Hospital, California Pacific Medical Center (CPMC), and AHMC Healthcare. He accepts Blue Shield, Health Net, and Anthem, in addition to other insurance carriers. According to Hill Physicians, Dr. Rittenhouse is currently accepting new patients at his office in Daly City, CA. After attending Creighton University School of Medicine, he completed his residency training at Santa Clara Valley Medical Center and a hospital affiliated with the University of California, San Francisco (UCSF). In addition to English, Dr. Rittenhouse (or staff) speaks Spanish. He also offers interpreting services for Cantonese, Mandarin, and Filipino-speaking patients.