Dr. Mark St. Marie is a Gastroenterologist and has been in practice for 32 years.
His practice location is 550 Orchard Park Road West Seneca, NY 14224
We provide our patients with many important gastrointestinal diagnostic tests and procedures.
GI Procedures
Upper Endoscopy
Colonoscopy
GI Disorders
Abdominal Pain
Bacterial Overgrowth
Barrett's Esophagus
Celiac Disease
Cirrhosis
Colon Cancer
Colon Polyps
Constipation
Diarrhea
Difficulty Swallowing
Diverticulosis/Diverticulitis
Dysphagia
Fatty Liver
Food Intolerance
Gallstones
Gastritis
Gastroparesis
GERD
Heartburn
Helicobacter Pylori
Inflammatory Bowel Disease
Irritable Bowel Syndrome
Lactose Intolerance
Nausea and/or vomiting
Pancreatitis
Peptic Ulcer
Stomach Ulcer
Ulcerative Colitis
Coming Soon
UBT Testing
Hydrogen Breath Testing for Bacterial Overgrowth
We are committed to providing
the highest standard
of medical care to our patients.
We want to thank our patients
for allowing us to provide them with outstanding and compassionate care.
