Mark Fesenmyer MD

  • Gastroenterology Hobart, IN

Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Mark Fesenmyer xhas an overall rating of 3.5.


Mark Fesenmyer, MD is a Doctor primarily located in Hobart, IN, with other offices in Valparaiso, IN and Merrillville, IN (and 2 other locations). Their specialties include Gastroenterology. Mark Fesenmyer is affiliated with Adventist Hinsdale Hospital.

Specialties & Expertise

Mark Fesenmyer has the following 1 specialty.


A gastroenterologist is a specialist in diagnosis and treatment of conditions involving the digestive/gastrointestinal (GI) tract. These doctors are experts on how food moves through the digestive system and is chemically broken down, with nutrients being absorbed and waste excreted. You might see this kind of doctor if you are experiencing any number of stomach issues, some of which might be severe diarrhea, irritable bowel syndrome, hemorrhoids, ulcers, acid reflux, Crohn's disease and more.

Locations & Directions

1600 S Lake Park Ave
Hobart, IN 46342

3800 Saint Mary Rd
Valparaiso, IN 46383

8895 Broadway
Merrillville, IN 46410

807 E Benton Ave
Naperville, IL 60540

100 Spalding Dr
Naperville, IL 60540