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Gastroenterology & Hepatology Intestinal and Liver Specialty Care

Leading experts in GI and liver-related issues using a collaborative, integrative approach.

About Our Practice
We are leading experts in the fields of gastroenterology and hepatology and deliver care in an integrative and collaborative approach. We provide consultation on a full spectrum of gastroenterology (GI) and liver-related diseases including:

  • Acute and chronic liver disease
  • Inflammatory bowel disease
  • Chronic abdominal pain/dyspepsia
  • AIDS-related GI and liver problems
  • Biliary tract disease
  • Viral hepatitis
  • Disorders of the esophagus and colon/anorectum

Endoscopic Services
To complement our consultative services we also offer a full spectrum of endoscopic services including:

  • Upper Endoscopy (EGD)
  • Colonoscopy
  • Sigmoidoscopy
  • Advanced endoscopy (ERCP, EUS, balloon enteroscopy)
  • Capsule endoscopy
  • Motility/manometry
  • 24-hour pH monitoring


Common Conditions Treated

  • Acute and Chronic Liver Disease
  • Inflammatory Bowel Disease
  • Chronic Abdominal Pain/Dyspepsia
  • Inflammatory Bowel Disease
  • AIDS-related GI and Liver Issues
  • Biliary Tract Disease
  • Viral Hepatitis
  • Espophagus and Colon/Anorectum Disorders

Our Providers

  • Donald AbramArdene Ballonado, NP
  • Mandana Khalili, MD
  • Michele Tana, MD
  • Justin Sewell, MD
  • John Cello, MD
  • Michelle Zandian, PA
  • Ma Somsouk, MD
  • Maria-Idalia Lens, MSN, NP
  • Lukejohn Day, MD
  • Miranda Surjadi, MS, NP
  • Jacquelyn Maher, MD

Our Location

Gastroenertology & Hepatology Division
Zuckerberg San Francisco General
1001 Potrero Avenue (between 22nd and 23rd Streets)
San Francisco, CA 94110
Building 5, 3rd Floor, Suite 3D

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  • Hours
    Direct Access Endoscopy Class
    2pm – 4pm
    9am – 12pm
    Gastroenterology Clinic
    Tue, Fri
    1pm – 4pm
    Wed – Thu
    1pm – 5pm
    Endoscopy Clinic
    Mon, Thu
    8am – 12pm
    Tu, Fri
    8am – 12pm
    1pm – 5pm
    Liver Clinic
    Mon – Fri
    8am – 5pm
    Hepatitis C Class
    3pm – 4pm
  • Contact
  • Directions

    Go to Building 5. Take the elevators to the 3rd floor. Follow signs for 3D Medical Diagnostic Center. Check-in upon arrival.

  • Public Transport


    Our Main Campus is served by Muni routes 9, 10, 33, 49, and 90.

    View Muni Schedule

    Plan Your Trip


    The closest BART stop is the 24th Street Mission station.

    View BART Schedule

    Plan Your Trip

    Free Shuttles

    UCSF Shuttle

    Free shuttle to UCSF locations in the city, including our Main Campus.

    View Shuttle Map & Schedule

    ZSFG Shuttle

    Free shuttle to the 24th Street Mission BART station during peak commute times.

    View Shuttle Map & Schedule


  • Parking

    On Campus

    Enter hospital campus driveway and turn right into the surface lot.

    23rd Street Parking Garage

    Enter from 24th Street (during the day) and 23rd Street (in the evening).

We’re Here to Help

To schedule an appointment:
Call 628 206 2406

For routine clinic calls:
Call 628 206 2407