Experts in GI Cancer

Stanford's Gastrointestinal (GI) Cancer Program doctors understand that there is no such thing as a simple cancer. With an unparalleled depth of knowledge, access to innovative research and technology, and a caring and compassionate approach, our doctors provide each patient with a comprehensive multi-specialty evaluation and personalized path to the most effective treatment.

Gastrointestinal (GI) Cancer Program
875 Blake Wilbur Drive
Palo Alto, CA 94304
Phone: 650-498-6000 Getting Here
Maps & Directions
875 Blake Wilbur Drive
Palo Alto, CA 94304
Phone: 650-498-6000 Getting Here

Our Doctors

Care and Treatment of Gastrointestinal Cancers

Overview of Gastrointestinal Cancer Conditions

Our goal is to improve the survival and quality of life of patients. Stanford Cancer Center doctors have particular expertise in the management of:

Anal cancer

A rare type of cancer that starts in the anus, the opening at the end of the rectum. 

Cholangiocarcinoma (bile duct)

A a rare, malignant tumor of the bile duct.

Colon cancer (colorectal cancer)

A disease that is indicated by malignant cells in the colon or rectum.

Esophageal cancer

A disease in which cancerous cells form in the tissues of the esophagus.

Familial adenomatous polyposis (FAP)

A genetic condition in which hundreds or thousands of colorectal polyps develop mainly in the colon and rectum, leading to a very high risk of colorectal cancer.  There is also higher risk of small intestine and thyroid cancer.

Gallbladder cancer

A rare disease in which malignant cells are found in the tissues of the gallbladder.


A tumor in the pancreas or duodenum; may occur as part of a hereditary endocrine syndrome. Gastrinomas secrete above average levels of gastrin, a hormone that stimulates the stomach to secrete acids and enzymes. Gastrinoma can cause peptic ulcers.

Gastrointestinal stromal tumors (GIST)

Rare tumors that start in special cells found in the wall of the GI tract.


A pancreatic tumor that secretes glucagon, a hormone that raises levels of glucose in the blood, leading to a rash.


A rare pancreatic tumor that secretes insulin, the hormone that lowers glucose levels in the blood. Often a genetic condition that runs in families.

Liver cancer

A type of cancer that starts in the cells of the liver. Viral hepatitis and liver damage from alcohol or fatty liver are risk factors for liver cancer.

Lynch syndrome (HNPCC)

Previously known as Hereditary Nonpolyposis Colon Cancer (HNPCC), Lynch syndrome predisposes people to develop colorectal, uterine, ovarian and stomach cancers, as well as other cancers.

Neuroendocrine pancreatic tumors

Tumors in the pancreas that are called endocrine tumors because they secrete hormones. These are typically benign.

Pancreatic cancer

Cancers that begin in the pancreas.

Stomach cancer

A type of cancer that begins in the stomach.


A type of neuroendocrine pancreatic tumor that secretes vasoactive intestinal polypeptide (VIP), leading to severe intermittent diarrhea that causes further problems including dramatic potassium loss. Despite the name, in rare instances, VIPomas secrete hormones other than VIP.

Clinical Trials

Current research

The Stanford team is currently conducting trials of targeted agents in gastroesophageal, colorectal, pancreatic, GIST, and neuroendocrine tumors.

For patients with early stage pancreatic cancer, a Phase III trial is testing a novel vaccine in combination with standard chemotherapy or chemoradiation.

Recent GI cancer research breakthroughs

Stanford doctors conducted several of the key trials that led to the widespread use of targeted therapies for GI cancers, including angiogenesis inhibitors for colorectal, neuroendocrine, and hepatocellular cancer and epidermal growth factor receptor (EGFR) inhibitors that are now routinely used in colorectal cancers.

Clinical trials

The Stanford Gastrointestinal (GI) Cancer Program always has new clinical trials beginning. Before beginning treatment, ask your doctor about any clinical trials you should consider. Learn more about clinical trials for cancer patients.

Clinical trial eligibility flowcharts

Eligibility flowcharts map clinical trials to specific types of cancers to determine if a participant is eligible for the particular clinical trial. View all gastrointestinal cancer eligibility flowcharts at the Stanford Cancer Institute.

For Patients


Review the New Patient Packet for information about:

  • What to expect on the day of your appointment
  • Maps, directions, parking, public transit options, and contact information
  • Other patient resources

Bring completed forms found in the GI Cancer New Patient Letter.


Please fax the Medical Record Release Form to your new patient coordinator. The medical release form is an authorization form for external facilities to release medical records to Stanford Health Care (formerly Stanford Hospital & Clinics). 

International Patients
Phone: +1 650-723-8561

Call us to make an appointment



For Health Care Professionals


Phone: 1-866-742-4811
Fax: 650-320-9443
Monday – Friday, 8:30 a.m. – 5 p.m.

Stanford Health Care (formerly Stanford Hospital & Clinics) provides comprehensive services to refer and track patients, as well as provides the latest information and news for physicians and office staff. For help with all referral needs and questions visit Referring Physicians.


Fax a referral form with supporting documentation to 650-320-9443.

Please note, though this form is from Stanford Health Care (formerly Stanford Hospital & Clinics), it is also used for all Cancer Center referrals.

Track your patients' progress and communicate with Stanford providers securely online.

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