Premier GI Care in Orange County Since 1976

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"Thanks to Associated Gastroenterology for taking excellent care of me!"

Associated Gastroenterology Medical Group is the leading independent, private gastroenterology practice in Southern California. Since 1976, Associated Gastroenterology has served patients in Anaheim, Irvine, and Long Beach, and throughout Orange, Riverside and Los Angeles counties. We’re dedicated to providing world-class GI care in a private, family practice setting. See why patients choose Associated Gastroenterology.

American Gastroenterological Association
American College of Gastroenterology
American Society for Gastrointestinal Endoscopy
Vitals Patient's Choice Award
American Board of Internal Medicine

Gastroenterology Treatment & Care

We provide a full spectrum of digestive health care, and offer services including acid reflux management, hemorrhoid removal, liver disease management, and routine GI care. Our patients have access to every endoscopic procedure available, including colonoscopy screening through AGMG Endoscopy.

Enter your symptom here.

  • Abdominal pain
  • Abdominal Pain
  • Acid reflux
  • Alcohol
  • Anal fissure
  • Barrett’s
  • Bleeding
  • Bloating
  • Cancer
  • Celiac disease
  • Chest pain
  • Colon
  • Colonoscopy
  • Constipation
  • Crohn’s disease
  • Diarrhea
  • Diverticulitis
  • Diverticulosis
  • Dyspepsia
  • Dysphagia
  • esophagus
  • Fatigue
  • FODMAP
  • Gallbladder
  • Gallstones
  • Gastritis
  • GERD
  • Gluten
  • Heartburn
  • Helicobacter pylori
  • Hepatitis
  • IBD
  • IBS
  • Jaundice
  • Lactose intolerance
  • Liver
  • Nausea
  • Pancreas
  • Pancreatic cancer
  • Pancreatitis
  • Polyp
  • PPI
  • Probiotic
  • Rectal bleeding
  • Small intestine bacterial overgrowth
  • Swallowing disorders
  • Ulcer
  • Ulcerative colitis

Featured Clinical Trials

Our doctors remain at the forefront of gastroenterology care, providing access to prominent clinical trials. To join a clinical trial visit ACT-Trials.com, or learn more about clinical trials at Associated Gastroenterology.

GERD Clinical Trial

Do you suffer from heartburn symptoms despite taking standard acid reflux medicines? We are enrolling patients in a clinical trial for a new acid reflux medicine who still have symptoms despite taking proton pump inhibitors (PPI).

Learn More at ACT Trials

Irritable Bowel Syndrome (IBS) Clinical Trial

Do you suffer from bloating, gas, abdominal pain, diarrhea or constipation? Are you not satisfied with the current management of your symptoms? We are enrolling patients in a clinical trial evaluating a new probiotic for treatment of IBS.

Learn More at ACT Trials

Fatty Liver Disease Clinical Trial

Have you been told that you have a fatty liver on ultrasound or CT scan? Fatty liver is a common condition that can result in serious liver damage. We are enrolling patients in a number of clinical trials to treat and reverse liver damage seen in fatty liver.

Learn More at ACT Trials

Celiac Disease Clinical Trial

Have you been diagnosed with celiac disease? Do you wish there was a medicine that would allow you to safely eat gluten containing foods. We are enrolling patients with celiac disease in a clinical trial for a new medical therapy.

Learn More at ACT Trials

Our GI Doctors

Our gastroenterologists have amassed over 100 years of collective clinical experience. They provide a depth of knowledge and dedication to excellence that has lead to recognition in terms of patient reviews, and numerous “best doctor” awards, including the Vitals.com Patient Choice Awards and the National Medical Honor Society.

We love what we do, and we love our patients. We hope to see you at Associated Gastroenterology.

Meet Our Doctors

We love what we do, and we love our patients. We hope to see you at Associated Gastroenterology.

About Our PracticeBook an Appointment