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Gastroenterology at Mount Zion

Gastroenterology at Mount Zion specializes in the prevention, diagnosis and treatment of diseases of the liver and digestive tract, including the esophagus, stomach, duodenum, gallbladder, biliary tract, pancreas, small intestine and colon.

Our specialists are involved in research to better understand digestive disorders and to develop new therapies. Many of our patients participate in clinical trials to test new treatments for disorders including ulcerative colitis and Crohn's disease.

Request an Appointment

Getting Here

Gastroenterology at Mount Zion
1701 Divisadero St., Suite 120
San Francisco, CA 94115
Phone: (415) 502-4444
Fax: (415) 502-2249

Hours: Monday to Friday
9 a.m. – 4:30 p.m.

Additional Locations
Gastroenterology at Parnassus

What to Bring

  • Health insurance information including authorizations or referrals
  • List of prescription medications and dosages
  • List of medications that you're allergic to
  • List of questions you may have
  • Recent test results related to your condition
  • Paper and pencil to take notes

Access Your Health Information Online

This clinic uses UCSF MyChart, an online patient service. Message your provider, request medication refills, view some test results and more.

Learn more about UCSF MyChart

Research and Clinical Trials

First Appointment

First Appointment

To schedule your first appointment at Gastroenterology at Mount Zion, please fax the following information to (415) 502-2249:

  • A referral letter, including your diagnosis, from your primary care doctor or specialist.
  • All related doctor's notes and lab and test results.
  • Copy of insurance card (front and back).

    The center accepts most health insurance plans. Some insurance plans won't cover the full amount and you will be responsible for the remainder. Call your insurance representative to confirm eligibility, benefits co-pay and the deductible.
  • Copy of authorization from insurance, if required.
  • Your contact information, including mailing address and phone numbers.

If you have any questions, please call Gastroenterology at Mount Zion at (415) 502-4444.

Parking

Parking at Mount Zion

Public parking is available in two parking garages near our Mount Zion campus. One is at 1635 Divisadero St. and the other at 2420 Sutter St. Entrances to both garages are on Sutter Street, between Divisadero and Broderick streets.

The 1635 Divisadero St. garage is open from 5:30 a.m. to 9 p.m., Monday to Friday, and closed on weekends and major holidays. The rate is $2 each 20 minutes with a $28 daily maximum.

For more information about parking in the 1635 Divisadero St. garage, call (415) 441-5408 or visit www.1635divisaderogarage.com.

The 2420 Sutter St. garage is open 6 a.m. to 10 p.m., Monday to Friday, and closed on weekends and UCSF holidays. The rate is $6 an hour with a $30 daily maximum. Those with a valid disabled placard receive a daily maximum rate of $12.

For more information about parking in the 2420 Sutter St. garage, call (415) 514-8935.

Other public parking garages are available nearby.

Metered street parking is rarely available.

Public Transportation

Mount Zion

UCSF Medical Center at Mount Zion is accessible via the following Muni bus routes:

  • No. 2*
  • No. 38*
  • No. 4
  • No. 24

The No. 1 California bus route stops at the corner of California and Divisadero streets, which is three blocks north of Mount Zion.

For more information about Muni, visit www.sfmuni.com.

* Wheelchair accessible bus routes

UCSF Shuttles

Free UCSF shuttles travel between the Parnassus and Mount Zion campuses as well as other UCSF locations.

For more information about UCSF transportation, please call (415) 476-1511.

Related Information

Ways to Give

Clinic Team

Najwa El-Nachef
Dr. Najwa El-Nachef,
gastroenterologist
Michael Korn
Dr. Michael Korn,
gastrointestinal cancer specialist
Uma Mahadevan
Dr. Uma Mahadevan,
gastroenterologist
Christian Mathy
Dr. Christian Mathy,
gastroenterologist
Aparajita Singh
Dr. Aparajita Singh,
gastroenterologist
Jonathan Terdiman
Dr. Jonathan Terdiman,
gastroenterologist
Fernando Velayos
Dr. Fernando Velayos,
gastroenterologist
Richard Weisiger
Dr. Richard Weisiger,
gastroenterologist
Elena Fisher
Elena Fisher,
nurse practitioner