Peterson Ralph L MD

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10520 MacArthur Blvd
Oakland, CA 94605

MacArthur Gastroenterology is a comprehensive medical clinic in Oakland, CA, offering expert endoscopy and hepatology care. With a modernized and fully equipped Endoscopy Suite, they provide a range of procedures and treatments for gastrointestinal and hepatitis diseases, utilizing state-of-the-art technology and advanced computer patient testing and treatment software applications.

Led by Dr. Ralph L. Peterson, a highly experienced Gastroenterology and Hepatology specialist, MacArthur Gastroenterology is dedicated to providing patient-centered healthcare with excellence in quality. Dr. Peterson has achieved a cure rate of over 90% in the treatment of Hepatitis B and C cases and is recognized for his expertise in colorectal cancer treatment. The clinic offers a wide range of services, including upper GI endoscopy, flexible sigmoidoscopy, colonoscopy, and treatment for various digestive tract diseases.

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Reviews

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3.011 reviews
Photo of Tila T.
Tila T.
7/16/2016

What an extraordinary doctor!!!!! At the beginning of the year my stomach would swell up so much i looked pregnant. I also had horrible heart burns. Symptoms disappeared 2 months ago. Doctor...

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Ann P.
6/30/2025

I will not recommend this place. I was referred by my doctor. 1st time I came my visit was on the rush . They tell me they will call me to do a test. They never did . I try to reschedule I was...

Pete G.
4/6/2023

This doctor sat me down and fully explained the importance of my procedure (colonoscopy). He stated that colon cancer was the easiest form of cancer to prevent and that this painless...

Rudi G.
11/20/2018

My visit seemed rushed and I did not feel he listened to me - it felt more like he was just speaking AT me rather than us having a conversation. That would have been ok - but I had to come in for...

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Kat S.
10/3/2019

I'm glad I paid no attention to the posted negative reviews. I was 20 years overdue for this very critical procedure and quite nervous. Dr Peterson immediately made me feel comfortable and at...

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