Gastroenterology in Simi Valley, CA - ProviderMatch - Adventist Health
Gastroenterology • Simi Valley, CA • Since 1980
About
Gastroenterology in Simi Valley, CA – Adventist Health Simi Valley - Adventist Health Simi Valley covers gastroenterology services, including colorectal cancer screening and colonoscopy, with physician experts such as James Tabibian, MD, PhD (Interventional Gastroenterology) and Tina Storage, MD (Gastroenterology, Functional GI). - Notable recent topics highlight colorectal cancer screening guidelines and prep options, emphasizing earlier screening (average risk starting around age 45) and fiber’s role in colon health. - The network includes leadership updates (e.g., Austin Purkeypile named president of Adventist Health Simi Valley) and ongoing patient-focused gastroenterology content. If you’re seeking a specific gastroenterology provider in Simi Valley, this page points to Adventist Health’s gastroenterology team, their screening recommendations, and educational videos about colonoscopy expectations and prep. For precise provider listings, appointment options, and location details, visit Adventist Health Simi Valley’s gastroenterology section or contact their patient services.
Clinic Type
Gastroenterology
Address
1 Adventist Health Way, Roseville, CA 95661, US
Phone
805-526-8252
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Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
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Team
Insurance & Payment
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Languages Spoken
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Social Media
Photos








What Patients Say
Overall sentiment across review platforms: mixed
- Healthgrades (Dr. Mahendra Patel): 2.6/5 stars (34 reviews) (34 reviews)
- US News (Dr. Ronald Omino): 3/5 stars (19 reviews)
- Healthgrades (Adventist Health Simi Valley Hospital): 69% recommendation rate (N/A)
Patients praise
- High ratings for individual specialist skill and life-saving care for some practitioners
- Clear communication from some providers
- Positive experiences with imaging and specific hospital staff
Common complaints
- Difficulties reaching the office by phone and long wait times
- Communication issues regarding medications and test results
- Perceived lack of personalized care or rushing through appointments
"If you manage to actually get a appointment with him he doesn't talk to you to offer solutions, but instead trys to finish the appointment as soon as he can."
— Healthgrades (Review of Dr. Mahendra Patel)"I have tried calling the office multiple times and I have pressed every prompt from scheduling to infectious disease and NO one answers the phone I let it ring till it hangs up on you."
— Birdeye (Review of Adventist Health Simi Valley)"Dr Amadpour is an amazing doctor. He saved my life."
— Yelp (Review of Dr. Moe Amadpour)Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].
In the News
- Ronald Omino, MD - Gastroenterology - Simi Valley Alamo Specialty Care | UCLA Health — May 27, 2026
- Greta Denise Green, FNP - Simi Valley, CA - Family Medicine - Book Appointment — May 13, 2026
- Dr. Laya Nasrollah, MD - Gastroenterologist in Ventura, CA — May 14, 2026
- Katrina Michelle Fernandes, NP - Glendale, CA - Gastroenterology — Apr 14, 2026
- Dr. Lauren Alexandra Poliakin, MD - Simi Valley, CA - Bariatric Surgery, General Surgery — May 20, 2026
Information sourced from the clinic's website as of July 10, 2026.
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