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Dr. Brian Riff, MD

Gastroenterologist, Internist

Anaheim, CA

About Dr. Brian Riff

A board-certified and fellowship-trained gastroenterologist, Brian Riff, MD, specializes in the minimally-invasive, endoscopic treatment of diseases of the digestive tract. Having completed fellowships in both gastroenterology and interventional endoscopy, Dr. Riff brings specialized training and expertise to many of today’s most advanced treatments, including: endoluminal stenting of the esophagus, duodenum and colon; radiofrequency ablation for Barrett's Esophagus; endoscopic ultrasound; ERCP; and endoscopic mucosal resection. Following medical school at Thomas Jefferson University’s Kimmel Medical School, Dr. Riff completed his internship, residency and fellowship in gastroenterology at the Hospital of the University of Pennsylvania, as well as a clinical research program at the U Penn Center for Clinical Epidemiology and Biostatistics. He completed a second fellowship at Mount Sinai Hospital, one of the nation’s top gastroenterology programs, where he was chosen as the Wong-Tang Fellow in Advanced Endoscopy, a highly competitive fellowship focused exclusively on cutting-edge endoscopic techniques and procedures. Dr. Riff recently returned to Orange County, where he was born and raised. While primarily focused on outstanding patient care, he has also published original research and book chapters on many gastrointestinal disorders. In his free time, he enjoys spending his free time showing his wife, a native New Yorker, all of California’s outdoor activities.

In-network insurances

  • Aetna
  • Anthem Blue Cross
  • Anthem Blue Cross Blue Shield


  • Internist
  • Gastroenterologist

Practice names

Hospital affiliations

  • Saint Jude Medical Center
  • Placentia-Linda Hospital
  • Anaheim Regional Medical Center

Board certifications

  • American Board of Internal Medicine
  • Gastroenterology (Internal Medicine)

Education and training

  • Medical School - Thomas Jefferson University, Doctor of Medicine
  • University of Pennsylvania, Residency in Internal Medicine
  • University of Pennsylvania, Fellowship in Gastroenterology
  • The Mount Sinai Hospital, Fellowship in Advanced Endoscopy
  • University of Southern California (Bachelor's)

Professional memberships

  • American College of Gastroenterology
  • American Gastroenterological Association

Awards and publications

  • Yang, D., Nieto, J. M., Siddiqui, A., Riff, B. P., DiMaio, C. J., Nagula, S., ... & Tzimas, D. (2017). Lumen-apposing covered self-expandable metal stents for short benign gastrointestinal strictures: a multicenter study. Endoscopy 49.04 (2017): 327-333.
  • Crismale, J. F., Riff, B. P., Schwartz, M., & DiMaio, C. J. (2016). Closure of an iatrogenic gastrogastric fistula created during EUS-directed transgastric ERCP. VideoGIE 1, no. 3 (2016): 61-62.
  • Leiman, D.A., Riff, B.P., Morgan, S., Metz, D.C., Falk, G.W., French, B., Umscheid, C.A. and Lewis, J.D., 2016. Alginate therapy is effective treatment for gastroesophageal reflux disease symptoms: a systematic review and meta-analysis. Diseases of the Esophagus 30.2 (2017): 1-8.

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Languages spoken

  • English

Provider's gender


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Dr. Brian Riff's office locations

Associated Gastroenterology Medical Group

1211 W La Palma Ave, Suite 306

Anaheim, CA 92801

Associated Gastroenterology Medical Group

2617 E Chapman Ave, Suite 302

Orange, CA 92869

Patient reviews for Dr. Brian Riff

All reviews have been submitted by patients after seeing the provider. For more information, check out our Patient Knowledge Base.
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Bedside manner

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Dr. Brian Riff is the best GI I have ever seen. Although the wait time was a bit long when it was my turn to be seen, he spoke with me for over an hour. He was extremely caring and evenreferred me to other specialists that could help with my condition. He set up a detailed patient plan for me and gave me a print out to follow. He is extremely knowledgeable about more recent GI related diseases. I was very impressed with him. I would highly recommend him to others. Please Note: There is another Dr. Riff as well in the same clinic, so just make sure to ask for Dr. Brian Riff. He is the younger Dr. Riff. I have not been treated by the other Dr. Riff, so I can't comment but he was very friendly in passing.
Source: Zocdoc
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