Whether you need a diagnostic test or surgery, don’t delay taking care of your gastrointestinal health – we’re here to safely care for you.
A note from Richard Nickowitz, MD, medical director of gastroenterology:
“In the gastroenterology department at Huntington Hospital, our dedicated group of physicians, nurses, technicians and support staff use state-of-the-art equipment to deliver outstanding quality gastrointestinal care.”
Richard Nickowitz, MD, medical director of gastroenterology

Richard E. Nickowitz, MD, is the medical director of the gastroenterology department, as well as an active member of the teaching faculty at the hospital. His areas of interest include inflammatory bowel disease, biliary tract disease, liver disease and endoscopy.
Dr. Nickowitz studied at Yale University and Cornell University Medical College. He followed with an Internal Medicine Residency at The New York Hospital/Cornell Medical Center and completed his combined Fellowship in Gastroenterology and Hepatology at Mount Sinai Hospital in New York. Dr. Nickowitz has been a member of the medical staff at Huntington Hospital since 1993 and is ABIM certified in Internal Medicine and Gastroenterology.
Gastroenterology Services
Common conditions we diagnose and treat:
Colon Polyps and Cancer
Our highly trained physicians can detect even small precancerous growths, known as polyps, through a variety of advanced screening methods, and can provide the full range of treatment options.
See our Cancer Screening Guidelines resource to learn when you should start colon cancer screenings and how often you should have them.
Gastroesophageal Reflux Disease (GERD)
We treat this condition with lifestyle and dietary modification and/or medications. If symptoms cannot be sufficiently controlled by these methods, surgical options may be available.
Gallstones and Biliary Tract Disease
We often diagnose gallstones using abdominal ultrasound, a simple, noninvasive imaging technique. Gallstones can be removed, often in a minimally invasive fashion, through cholecystectomy by one of our expert surgeons. This procedure can, at times, be done on an outpatient basis. Our skilled gastroenterologists also perform ERCP (endoscopic retrograde cholangiopancreatography) to diagnose and treat diseases of the biliary tract and pancreas.
Inflammatory Bowel Disease (IBD)
We offer a full range of options to treat IBD (ulcerative colitis and Crohn’s disease), including medication, diet modification, and surgery.
Surgery
When surgery is required, our team of skilled surgeons stands ready to provide the most advanced care available in our region. Three of our surgical suites are designed for minimally invasive, or laparoscopic procedures. Patients often enjoy significant reductions in healing time and postsurgical pain, along with less scarring and a quicker return to normal daily activities. Our medical gastroenterologists and GI surgeons work closely together to provide optimal care. Meet your colorectal surgery team.
Maintaining Digestive Health
Recent digestive health studies have focused on the connection between healthy gut bacteria and overall wellness. Huntington Hospital Clinical Dietitian Crystal Kwan, MPH, shares tips for incorporating probiotics and prebiotics into your diet to encourage the right bacteria in your system. A beneficial balance can help keep your GI tract healthy and protect against harmful microorganisms.
Contact Us
Find a local gastroenterologist affiliated with Huntington Hospital or call our physician referral line (800) 903-9233.
Patient Stories
Michelle
Having received a lupus and rheumatoid arthritis diagnosis at the young age of 16, Michelle Usher was no stranger to doctor visits and medical tests. When she started to feel […]Caesar
One day, out of the blue, Caesar Penney started experiencing severe abdominal pain. It did not improve after a few days, so he made an appointment with his primary care […]
View all patient stories here.
Gastroenterology News
Raising awareness about colorectal cancer
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Since its groundbreaking in October 2024, construction for the Terri and Jerry Kohl Medical Pavilion has been underway. We’re excited to announce…Huntington Health honored by American Medical Association for commitment to physician well-being
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U.S. News & World Report, the global authority in hospital rankings and consumer advice, has named Huntington Health as a 2025 High…Huntington Health ranked eighth Healthiest Employer in Southern California
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Huntington Health, an affiliate of Cedars-Sinai, has been named by U.S. News & World Report as a 2024-2025 Best Hospital, ranking number…
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