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Gastrointestinal Surgery and Oncology Clinic
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The team of experts at the UCSF Gastrointestinal Surgery and Oncology Clinic provide the most advanced and effective treatments available for benign and cancerous gastrointestinal conditions.

These include benign and cancerous conditions of the:

  • Anus
  • Colon
  • Bile duct
  • Esophagus
  • Gallbladder
  • Liver
  • Pancreas
  • Peritoneal cavity
  • Rectum
  • Small intestine
  • Spleen
  • Stomach

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Getting Here

Gastrointestinal Surgery and Oncology Clinic
Ron Conway Family Gateway Medical Building
1825 Fourth St., Fourth Floor
San Francisco, CA 94158
Phone: (415) 353-9888
Surgery Fax: (415) 502-2236
Oncology Fax: (415) 353-9931

Hours: Monday to Friday
8 a.m. – 5 p.m.

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


Parking at Mission Bay

Public parking options at UCSF's Mission Bay campus include:

Weekdays: $3.75/hour
Daily Maximum: $30/day

More Information

Download a Mission Bay campus map

Public Transportation

UCSF Medical Center at Mission Bay is accessible via the following Muni bus routes:

  • 22
  • 55
  • T-Third Street line

More Information

(415) 673-6864 (MUNI)
SFMTA website

UCSF Shuttles

Free UCSF shuttles connect the Mission Bay campus with our Mount Zion and Parnassus campuses as well as other UCSF locations and the 16th Street BART station.

More Information

Shuttle routes and timetables
Shuttle system map
Shuttle hotline: (415) 476-4646 (GOGO)

Related Information

Ways to Give

Clinic Team

Chloe Atreya
Dr. Chloe Atreya,
gastrointestinal cancer specialist
Emily Bergsland
Dr. Emily Bergsland,
gastrointestinal cancer specialist
Eric Collisson
Dr. Eric Collisson,
gastrointestinal cancer specialist
Carlos Corvera
Dr. Carlos Corvera,
gastrointestinal cancer surgeon
R. Kate Kelley
Dr. R. Kate Kelley,
gastrointestinal cancer specialist
Andrew Ko
Dr. Andrew Ko,
colorectal and gastrointestinal cancer specialist
Michael Korn
Dr. Michael Korn,
gastrointestinal cancer specialist
Eric Nakakura
Dr. Eric Nakakura,
gastrointestinal cancer surgeon
Margaret Tempero
Dr. Margaret Tempero,
gastrointestinal cancer specialist
Katherine Van Loon
Dr. Katherine Van Loon,
gastrointestinal cancer specialist
Alan Venook
Dr. Alan Venook,
gastrointestinal cancer specialist
Robert Warren
Dr. Robert Warren,
gastrointestinal cancer surgeon
Elizabeth Dito
Elizabeth Dito,
research nurse
Alisa Yee
Alisa Yee,
nurse practitioner
Jill  Meyers
Jill Meyers,
clinical social worker

Patient Experiences

Cancer Center Orientation