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550 Orchard Park Rd bldg a suite 104, West Seneca, NY, 14224, United States
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The office staff is amazing patient, courteous, and helpful!

The receptionist is awesome and always extremely helpful.

Best bedside manner ever. Will take the time to really work through things with you.


Dr. Mark St. Marie is a great doctor! He helped me through a bunch of gi problems! I have seen other gi doctors and he have been by far the best! All the staff is very friendly. The office is nice and clean. Couldn’t ask for a better place to go!
Dr. Mark St. Marie Gastroenterology PLLC has a 4.1 star rating with 11 reviews.
Dr. Mark St. Marie Gastroenterology PLLC is open now. It is open 24/7.
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