Associated Gastroenterology Medical Group
Associated Gastroenterology Medical Group is a Gastroenterologist practice in Tustin, CA. Rated 4.5 from 30 public reviews. Phone and website are listed.
Address
12791 Newport Ave #208, Tustin, CA 92780
Tustin, CA 92780
Phone
(714) 633-1823Website
Visit listed websiteListing updates
Request a correction or opt-outListed hours
- Monday
- 8:45AM–5PM
- Tuesday
- 8:45AM–5PM
- Wednesday
- 8:45AM–5PM
- Thursday
- 8:45AM–5PM
- Friday
- 8:45AM–1PM
- Saturday
- Closed
- Sunday
- Closed
Credentials, affiliations, and coverage
Sources
- google-maps-octoparse-cloud-recovery · checked Aug 12, 2026
- google-maps-octoparse · checked Aug 12, 2026
Federal data is attributed to its source and does not imply CMS endorsement.
Newest photos
No public photos are available for this listing.
Newest reviews
Michelle Johnson
The office staff is very helpful and Dr Riff is very thorough and caring and has a great bedside manner
Linda
Dr. Riff and office staff are extremely kind and helpful. They solved something I've needed for awhile. Thank You so much 🧑⚕️🤙
Jean Marie
I am so glad I discovered this practice and I think Dr. Brian Riff is the absolute best. He was super nice, very personable and extremely knowledgeable. I feel I’m in great hands and on the right track with my digestive issues now. A+++
Deborah Louis
I been Regular visit with Doctor Brian Riff He is very professional throughout managing my Gerd (acid reflux) and Barrett’s surveillance. He answers my questions decides what’s best and cares about my concerns. I undergo Endoscopy procedures every 3 years and I been in good hands. I wouldn’t fully trust in anyone else to perform this kind of delicate test.
Shailesh Patel
No written review was provided.
Marites Hergesheimer
No written review was provided.
Julie W
Dr Brian Riff is great! Thorough, kind, honest and knowledgeable. I trust him 100% and will follow his plan. I am in remission pretty much after 30+ yrs of UC. Living a life I didn’t think would ever be.
Pilar Najera
Hey! Just wanted to quickly share how amazing my visit was Monday Seriously, from the second I walked in, the front desk team was absolutely lovely and so on top of things – they made checking in a breeze. Then, my appointment with Dr. Riff was just fantastic. He really went above and beyond! I genuinely appreciated how much time he took to patiently explain every single detail, walking me through my diagnosis and giving me a super clear picture of the treatment plan ahead. It made such a huge difference to feel so informed and comfortable about everything. What a relief to be in such capable hands! Sent from Yahoo Mail for iPhone
Griffin
Easily scheduled appointments. A very nice facility. Polite staff. Great doctor too 🏁
Steve Yellon
AGMG and all the people took such good care of me! Highly recommended but only if you want great people, smart doctors. Great reception crew!
