Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Fung, Gastroenterologist in San Francisco, CA?
Dr. Gregory Fung, MD is a Gastroenterologist, who primarily practices in San Francisco, CA with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Fung graduated from University of California and completed his residency at Stanford University Hospital/Kaiser Permanente Medical Center Program. Dr. Fung is fluent in English and Chinese, and is currently seeing new patients. Dr. Fung’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Fung’s office at (415) 982-6691.
Where did Dr. Fung go to medical school and complete their residency?
Residency: Stanford University Hospital/Kaiser Permanente Medical Center Program
Medical School: University of Ca, San Francisco, Sch of Med, San Francisco Ca | University of California
Is Dr. Fung board certified in Gastroenterologist?
Yes, Dr. Gregory Fung, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Fung speak?
Dr. Fung and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does Dr. Fung treat?
As a Gastroenterologist, Dr. Fung diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Fung. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Indigestion
- Gas in the Digestive Tract
- Indigestion (Dyspepsia)
- Dyspepsia
- Upset Stomach
- Stomach Discomfort
ICD-10 Codes:
- K30: Functional dyspepsia
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Hepatitis B
- Chronic Hepatitis B
- Hep B
- Hepatitis B virus
- HBV infection
- Long-term Hepatitis B
- Persistent Hepatitis B
ICD-10 Codes:
- B1910: Unspecified viral hepatitis B without hepatic coma
- B181: Chronic viral hepatitis B without delta-agent
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
Also known as:
- Widespread Abdominal Pain
- Abdominal Pain
- General stomach pain
- Overall belly pain
- Diffuse abdominal pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R1084: Generalized abdominal pain
- R109: Unspecified abdominal pain
Also known as:
- Abnormal Bowel Movements
- Change in Bowel Habits
- Bowel Movement
- Unusual stool
- Changes in poop
- Fecal changes
- Altered Bowel Habits
- Irregular Bowel Movements
- Changes in Pooping
ICD-10 Codes:
- R195: Other fecal abnormalities
- R194: Change in bowel habit
Also known as:
- Other Pre-Procedure Examination
- Various pre-op checks
- Miscellaneous pre-surgery exams
- Other pre-treatment assessments
ICD-10 Codes:
- Z01818: Encounter for other preprocedural examination
Also known as:
- Gastrointestinal Bleeding
- Dark, Tarry Stools (Melena)
- Gastrointestinal (GI) Bleeding
- GI Bleeding
- Internal Digestive Bleeding
- Digestive Tract Hemorrhage
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K922: Gastrointestinal hemorrhage, unspecified
- K921: Melena
Also known as:
- Stomach Inflammation
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
- K2950: Unspecified chronic gastritis without bleeding
Also known as:
- Routine Adult Health Checkup
- Health Checkup
- Adult physical exam
- Annual wellness visit for adults
- General adult medical exam
ICD-10 Codes:
- Z0000: Encounter for general adult medical examination without abnormal findings
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
Also known as:
- Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D649: Anemia, unspecified
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Which procedures does Dr. Fung perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Gregory Fung may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Fung's office.
Does Dr. Fung accept my insurance?
Dr. Fung accepts most major insurance plans. Important: Please call our office at (415) 982-6691 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Fung accept in San Francisco, CA?
Dr. Fung in San Francisco, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Centene
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Medicare
Other Health Care Provider
Other Provider Networks
Sutter Health
UnitedHealthcare
View All Insurances
Where is Dr. Fung's office located?
Dr. Gregory Fung's Primary Practice
789 Vallejo St
San Francisco, CA 94133
(415) 982-6691
What is Dr. Fung's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Fung's National Provider Identifier (NPI) number is 1700970795.
What common questions do patients ask about Dr. Fung?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Fung
What is Dr. Gregory Fung's specialty?
Dr. Fung is a Gastroenterologist near San Francisco, CA. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Fung to book an appointment today.
Is this Dr. Gregory Fung affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Fung is affiliated with California Pacific Medical Center - Van Ness Campus, California Pacific Medical Center - Davies Campus which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Gastroenterologist?
Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Gregory Fung accepting new patients in San Francisco, CA?
Yes, Dr. Gregory Fung is accepting new patients at this time.
Does Dr. Gregory Fung offer online booking?
Please contact Dr. Fung's office at (415) 982-6691 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Gregory Fung?
Please contact Dr. Fung's office at (415) 982-6691 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Gregory Fung have?
Dr. Gregory Fung is certified by the American Board of Internal Medicine.
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