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JW

Dr. John Wang

San Francisco, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Wang, Gastroenterologist in San Francisco, CA?

    Dr. John Wang is a Gastroenterologist, who primarily practices in San Francisco, CA with 2 additional practice locations. He is board certified. Dr. Wang is fluent in English, and is currently seeing new patients. Dr. Wang’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Wang’s office at (415) 387-8800.

    What languages does Dr. Wang speak?

    Dr. Wang and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Wang treat?

    As a Gastroenterologist, Dr. Wang 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. Wang. 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:

    • 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:

    • Dark, Tarry Stools (Melena)
    • Rectal Bleeding
    • Gastrointestinal Bleeding
    • Gastrointestinal (GI) Bleeding
    • Melena
    • Black Stools
    • Upper GI Bleed Signs
    • Anal Bleeding
    • Blood in Stool
    • Lower GI Bleed

    ICD-10 Codes:

    • K921: Melena
    • K625: Hemorrhage of anus and rectum

    Also known as:

    • Difficulty Swallowing
    • Swallowing Disorder
    • Dysphagia
    • Trouble swallowing
    • Painful swallowing

    ICD-10 Codes:

    • R1310: Dysphagia, unspecified

    Also known as:

    • Diarrhea
    • Loose stools
    • Runny poop
    • Frequent bowel movements

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    What procedures does Dr. Wang perform?

    As a Gastroenterologist, Dr. Wang performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Wang. 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:

    • Colonoscopy with Polyp Removal
    • Colonoscopy with Biopsy
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening

    CPT Codes:

    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Upper Endoscopy with Biopsy
    • Biopsy
    • Endoscopy
    • EGD with Biopsy
    • Gastroscopy with Biopsy
    • Esophagogastroduodenoscopy with Biopsy

    CPT Codes:

    • 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple

    Does Dr. Wang accept my insurance?

    Dr. Wang accepts most major insurance plans. Important: Please call our office at (415) 387-8800 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Wang accept in San Francisco, CA?

    Dr. Wang in San Francisco, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Alliant Health Plans

    • BCBS Unspecified

    • Blue Shield of California

    • Crown Cork and Seal Company

    • Elevance Health Inc. (formerly Anthem)

    • Medicare

    • San Francisco Health Plan

    • State of Tennessee

    • Sutter Health

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Wang's office located?

    Dr. John Wang's Primary Practice

    2100 Webster St Ste 115

    San Francisco, CA 94115

    (415) 387-8800

    Get Directions

    Dr. John Wang's Practice 2

    300 Pasteur Dr # 154

    Stanford, CA 94305

    Get Directions

    Dr. John Wang's Practice 3

    300 Pasteur Dr

    Palo Alto, CA 94305

    Get Directions

    What is Dr. Wang's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Wang's National Provider Identifier (NPI) number is 1518429869.

    What common questions do patients ask about Dr. Wang?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Wang

    What is Dr. John Wang's specialty?

    Dr. Wang 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. Wang to book an appointment today.

    Is this Dr. John Wang affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Wang is affiliated with California Pacific Medical Center - Van Ness Campus, California Pacific Medical Center - Mission Bernal Campus, California Pacific Medical Center - Davies Campus, UCSF Health St. Mary's Hospital, Mills-Peninsula Medical Center, Novato Community Hospital 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 John Wang accepting new patients in San Francisco, CA?

    Yes, Dr. John Wang is accepting new patients at this time.

    Does Dr. John Wang offer online booking?

    Please contact Dr. Wang's office at (415) 387-8800 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Wang?

    Please contact Dr. Wang's office at (415) 387-8800 for information regarding telehealth appointment availability or for scheduling assistance.

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