Samaritan Gastroenterology
Gastroenterology • Corvallis, OR • Since 1997
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
Samaritan Gastroenterology in Corvallis is part of Samaritan Health Services, a nonprofit health system headquartered in Corvallis, Oregon. SHS operates a multi-hospital network with over 110 physician clinics and several health services in the Willamette Valley and central Oregon Coast. The Corvallis location is linked to Samaritan’s main headquarters and GI services are offered within the larger Samaritan Health Services system, which employs thousands of staff and physicians and serves as a major regional healthcare provider. For precise clinic address, appointment options, and GI specialists, contact SHS patient services or visit samhealth.org.
Services Offered
Technology & Equipment
Insurance & Payment
Not published.
Pay your bill (online), Make a payment
Languages Spoken
Not published.
Current Offers
New patient offer
FAQs
Preparing for my colonoscopy, what should I review in advance?
Preparation Guide & FAQ’s.
What dietary guidelines are suggested before the procedure?
Low Residue Diet Meal Suggestions.
What diet should I follow the day before or on the day of the procedure?
Clear Liquid Diet Meal Suggestions.
What are the benefits, risks, and alternatives of the procedure?
Benefits Risks Alternatives.
How can I recognize a successful bowel prep?
Recognizing a Successful Bowel Prep.
Social Media
Photos
Photos published by Samaritan Gastroenterology showing the gastroenterology practice in Corvallis, OR.
What Patients Say
Overall sentiment across review platforms: mixed
- Healthgrades (Dr. Keith Harris): 3.7 / 5 (25 ratings)
- Healthgrades (Dr. Robert Wohlman): 3.5 / 5 (32 ratings)
- Vitals (Dr. Andrei Gasic): 4.0 / 5 (23 ratings)
- Vitals (Dr. Adam Silverblatt): 5.0 / 5 (7 ratings)
- Vitals (Dr. Matthew Walton): 2.0 / 5 (1 rating)
Patients praise
- Highly knowledgeable and skilled doctors
- Effective, life-saving treatment for chronic gastrointestinal conditions
- Some providers described as compassionate, thorough, and good communicators
Common complaints
- Perceived lack of listening or care from some providers
- Reports of unprofessionalism from some staff members
- Long wait times for appointments with certain doctors
- General frustrations with the larger Samaritan Health Services system including perceived lack of follow-up on complaints
"This doctor is highly knowledgeable and tells it like it is with great love and care in his voice. ... I feel that Dr. Harris has improved my quality of life 100%."
- Healthgrades patient review for Dr. Keith Harris"Again, he listens and CARES!"
- Healthgrades patient review for Dr. Robert Wohlman"The entire time I was a patient there I was "cared for" by an exceptionally rude nurse. Worst place ever."
- Vitals patient review for Dr. Andrei Gasic (regarding office staff)Synthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- Samaritan Endoscopy Gets Top Honors by U.S. News & World Report - Samaritan Health Services - Apr 15, 2026
- Good Sam Brings Cutting-Edge Robotic Bronchoscopy to Corvallis - Samaritan Health Services - Nov 5, 2025
- Samaritan opens mobile OB-GYN clinic in Corvallis - Mar 18, 2026
- Mobile Prenatal & Postpartum Clinic Launches With Successful Open House - Samaritan Health Services - Mar 19, 2026
- Quality Cancer Care Recognized by National Accreditations - Samaritan Health Services - Oct 8, 2025
Information sourced from the clinic's website as of July 11, 2026.
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