Skip to main content
Mark Fesenmyer, MD, Gastroenterology, Merrillville, IN, Franciscan Health Crown Point

MarkFesenmyerMD

Gastroenterology Merrillville, IN

Advanced Endoscopic Interventional

Physician

Dr. Fesenmyer is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Connect with other colleagues in the same hospital or clinic
  • Search all U.S. specialist profiles and refer a patient
  • Read the latest clinical news and earn CME/CEU credits

See Dr. Fesenmyer's full profile

Already have an account?

Education & Training

  • University of Minnesota
    University of MinnesotaFellowship, Gastroenterology, 1995 - 1998
  • University of Minnesota
    University of MinnesotaResidency, Internal Medicine, 1991 - 1995
  • Indiana University School of Medicine
    Indiana University School of MedicineClass of 1991

Certifications & Licensure

  • IN State Medical License
    IN State Medical License 2013 - 2025
  • IL State Medical License
    IL State Medical License 2001 - 2017
  • WI State Medical License
    WI State Medical License 1998 - 2015
  • MN State Medical License
    MN State Medical License 1992 - 1998
  • American Board of Internal Medicine Gastroenterology

Publications & Presentations

PubMed

Press Mentions

  • Squatty Potty, Other Devices Help Make It Easier to Go
    Squatty Potty, Other Devices Help Make It Easier to GoApril 14th, 2019

Professional Memberships

Hospital Affiliations