Gastroenterologists in San Jose, California

At Regional Medical Center of San Jose, we provide comprehensive diagnostic and treatment options for gastrointestinal conditions. Whether you need a colonoscopy or minimally invasive colorectal surgery, our team is equipped to provide top-quality services to meet your needs.

To learn more about the gastrointestinal services we offer, call our Consult-A-Nurse® team at (888) 762-8881.

Gastrointestinal (GI) services we offer

GI conditions impact the esophagus, stomach, liver, gallbladder, pancreas, small intestine or colon (large intestine). Our hospital provides the following services to identify and treat GI conditions:

  • Colonoscopy
  • Endoscopy
  • Endoscopic ultrasonography (EUS)
  • Endoscopic retrograde cholangiopancreatography (ERCP)
  • Esophagogastroduodenoscopy (EGD)
  • Esophagography (barium swallow)
  • Gastroesophageal reflux disease treatment (GERD)
  • Gastrointestinal surgery

GERD treatment

Commonly referred to as acid reflux disease, GERD is a result of stomach acid coming up to the esophagus from the stomach. Common treatments include medications, lifestyle adjustments and, in some cases, surgery.

One method we use to diagnose acid reflux disease is an esophagogram (also known as a barium swallow test). This uses a contrast material to highlight a certain area of the organs during an X-ray. In addition to GERD, an esophagogram can be used to diagnose disorders such as esophagus obstruction and stomach cancers.

Excellence in GI surgery

We offer comprehensive surgery options for patients in need of advanced gastrointestinal treatment. Our surgeons use minimally invasive techniques to perform esophagus, stomach, pancreatic, liver and colon surgery.


Regional Medical Center of San Jose is proud to be recognized by Healthgrades as a Five-Star Recipient for Colorectal Surgeries for three years in a row (2019-2021).

Colonoscopy services

Colonoscopies are recognized as a primary line of defense against colon cancer. They allow your doctor to identify and remove polyps that can become cancerous. In addition to preventing and treating colon cancer, colonoscopies may be used in:

  • Diagnosis and treatment of colitis and diverticulosis
  • Irritable bowel syndrome (IBS) treatment
  • Polyp removal
  • Stent placement

GI endoscopy

A GI endoscopy uses a thin, flexible tube with a small camera attached to the end to look at your upper GI tract. This allows your doctor to diagnose and sometimes treat conditions, such as:

  • Angiodysplasia
  • Barrett’s esophagus
  • Mallory-Weiss tear
  • Crohn’s disease
  • Celiac disease
  • Colorectal cancer
  • Diverticulitis
  • Esophageal, gastric or duodenal cancer
  • Fistulas
  • Gastritis
  • Gastroesophageal reflux disease (GERD)
  • Hiatal hernias
  • Intestinal obstruction
  • Irritable bowel syndrome (IBS)
  • Parasitic disease
  • Peptic ulcers
  • Rectal and bladder prolapse
  • Ulcerative and ischemic colitis

Endoscopic ultrasound

This combines endoscopy and ultrasound to create the highest definition images of internal organ structures. Endoscopic ultrasounds allow your doctor to pinpoint and fully describe tumors. They can also help improve outcomes for surgery or radiation oncology.

Endoscopic ultrasounds may be used to:

  • Assist with lymph node biopsies
  • Diagnose and treat biliary cancers
  • Diagnose gallbladder and common bile duct stones
  • Guide drainage of cysts in the liver and pancreas
  • Perform liver biopsies
  • Resect large mucosal polyps
  • Place gold seed markers to help with radiation therapy treatment

Endoscopic retrograde cholangiopancreatography (ERCP)—ERCP uses endoscopy and fluoroscopy to diagnose diseases in the bile ducts and the pancreatic ducts, including gallstones, inflammation and cancer.

Esophagogastroduodenoscopy (EGD)—EGD is a minimally invasive diagnostic test that uses endoscopy to examine the upper GI tract and diagnose ulcers and bleeding.

Biliary disease treatment

The liver produces bile which is an essential component of digestion. Bile from the liver is stored temporarily in the gallbladder. The liver, gallbladder and associated ducts are known as the biliary system.

We use endoscopies to diagnose and treat conditions affecting the biliary system, such as:

  • Bile duct cancers
  • Cirrhosis
  • Common bile duct stone removal
  • Fistulas
  • Genetic defects
  • Liver disease, including Hepatitis A, B, C and E
  • Pancreatitis
  • Pancreas divisum
  • Portal hypertension
  • Pseudocysts
  • Stent placement