Dr. Mark Bertram Sostek MD Gastroenterologist

Dr. Mark Sostek is a gastroenterologist in Wilmington, Delaware. He received his medical degree from Tufts University School of Medicine.

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Office Location

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Specialty & Clinical Interests

Gastroenterologist: Esophagus Disease, Gastrointestinal Functional & Motility Disorders

Education & Medical Training

UCLA Medical Center
Internship, Internal Medicine, 1986 - 1989

Tufts University School of Medicine
Class of 1986

Middlebury College
Other Training, 1976 - 1980

Fellowship, Lahey Clinic, 1991 - 1993

University of Florida Shands Hospital
Other Training, Antroduodenal and small bowel manometry , 1997 - 1997

Certifications & Licensure

American Board of Internal Medicine
Certified 25 years in Internal Medicine

American Board of Internal Medicine
Certified 21 years in Gastroenterology

PA State Medical License

Awards, Honors & Recognition

Fellow (AGAF), American Gastroenterological Association

Publications & Presentations

Long-term safety of naproxen and esomeprazole magnesium fixed-dose combination: phase III study in patients at risk for NSAID-associated gastric ulcers.
Sostek, M. B., Fort, J. G., Estborn, L., Vikman, K.

A fixed-dose combination of naproxen and esomeprazole magnesium has comparable upper gastrointestinal tolerability to celecoxib in patients with osteoarthritis of the knee: results from two randomized, parallel-group, placebo-controlled trials.
Cryer, B. L., Sostek, M. B., Fort, J. G., Svensson, O., Hwang, C., Hochberg, M. C.

Efficacy of esomeprazole 40 mg vs. lansoprazole 30 mg for healing moderate to severe erosive oesophagitis.
Fennerty, M. B., Johanson, J. F., Hwang, C., Sostek, M.

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