View us online at: www.buffalogi.com
Current Positions:
Buffalo Gastroenterology Associates, L.L.P., Orchard Park, N.Y.
WNY Center for Ambulatory Surgery, West Seneca, N.Y.
Mercy Hospital of Buffalo, Buffalo, N.Y.
Education:
Fellowship-Graduate Hospital, University of Pennsylvania Gastroenterology
State University of New York at Buffalo, Buffalo, N.Y.
University of Guadalajara, Guadalajara, Jausco Mexico
Certification:
New York State
Memberships:
New York State Internal Medicine Society
Erie County Medical Society
Gastrointestinal Liver Society


Dr. Mark Stephen St Marie, MD
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- Bertrand Chaffee Hospital
Medical School
- 1976
Universidad Autonoma De Guadalajara Facultad De Medicina
Center For Ambulatory Surgery
550 Orchard Park Rd Ste B101
West Seneca
NY
14224
USA
+17166774400
- Accepts Medicare
- Accepts Medicaid
- CDPHP PPO
- Empire PPO
- Aetna NYC Community Plan
- HealthNow - NYSOH Mrktplace
- Aetna Signature Administrators PPO
- Independent Health Encompass HMO
- Aetna Choice POS II
- Empire Prism EPO Blue Priority
- MVP Preferred PPO
- CDPHP New York State of Health - Small Business
- Independent Health FlexFit HMO
- MVP HMO
- BCBS Blue Card PPO
- Highmark Community Blue PPO
- Aetna Elect Choice EPO
- Univera Healthcare Preferred Gold - Tier 1 & 2
- Aetna Managed Choice POS Open Access
- Fidelis Care NY State of Health HBX
- MVP Premier Plus HMO Small Groups
- PPO
- BCBS Western NY Essential Plan
- BluePPO HSA
- Empire Blue Priority NY
- Fidelis Care Essential Plan
- Fidelis Mrktplace
- HMO 200 Series
- MVP EPO/PPO
- MVP Liberty EPO/PPO
- PPO 6000 Series
- BCBS WNY PPO
- BCBSA Blue Card High Performance Network
- BCBSA High Performance Network - Tiered
- CDPHP PPO National
- Empire BCBS Blue Access Employer Sponsored
- Empire BCBS Connection Employer-Sponsored
- Empire BCBS National Blue High Performance Network HPN
- Empire BCBS PPO
- Empire Connection Blue HPN
- Empire Hospital
- Empire Hospital/Medical (Trad)
- Fidelis Care Qualified Health Plans
- Fidelis Individual Marketplace NYS QHP
- MVP Health Plan EPO/PPO
- NYS Provider & Health Emblem Individual Marketplace QHP
- Univera Essential Plan
- Capital BC PPO
- IBC Personal Choice PPO
- Aetna HMO
- Aetna Select
- Excellus BCBS CNY Preferred Gold - Tier 1
- Excellus BCBS SimplyBlue/SimplyBlue Plus
- Aetna Elect Choice EPO Open Access
- Aetna Innovation Health Aetna Premier Care Network Plus
- Aetna Open Choice PPO
- Aetna Savings Plus of Metro NY
- Empire BCBS Blue Priority NY
- Excellus BCBS Bassett Preferred
- Excellus BCBS BluePPO HSA
- Medica Choice With UHC
- BCBS Preferred Choice POS
- Excellus BCBS ExchangeBlue
- Fidelis Care All
- Constipation
- Gastritis and Duodenitis
- Chronic Pancreatitis
- Hemorrhoids
- Gastrointestinal Hemorrhage
- Gastroesophageal Reflux Disease (GERD)
- Diverticulosis
- Acute Pancreatitis
- Inflammatory Bowel Disease (IBD)
- Irritable Bowel Syndrome (IBS)
- Peptic Ulcer Disease
- Esophagitis
- Infectious Liver Disease
- Intestinal Obstruction
- Diverticulitis
- Celiac Disease
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