Stephen Mulrooney, MD

Mulrooney, Stephen M., MD

Primary Location

Mount Sinai South Nassau
One Healthy Way
Oceanside, NY 11572
(516) 632-3000

No Patient Experience Ratings [Why not?]



Area(s) of Practice Specialty


Hospital Employed


Medical School

Albany Medical College


St. Vincent’s Medical Center in Manhattan


New York Medical College

Board Certification

American Board of Internal Medicine and Gastroenterology

Accepted Insurance

Participates in most plans the hospital accepts.
Click here to view the list of Participating Insurance Plans.
Click here to view the list of Non-Participating Insurance Plans.

Accepting New Patients



Stephen Mulrooney, MD, FACG, Director of Motility, Mount Sinai South Nassau, brings to his patients over thirty years of experience as a gastroenterologist. He is a graduate of the accelerated six-year Biomedical Program of RPI and Albany Medical College. After residency at St. Vincent’s Medical Center in Manhattan, he did his fellowship in gastroenterology at New York Medical College. He served as a Major in the United States Air Force, where he was Chief of Endoscopy at Robert L. Thompson Hospital, Fort Worth, Texas. He has authored numerous publications in gastroenterology and has been an active faculty participant in fellowship programs. His areas of expertise include GERD, esophageal motility disorders, esophageal manometry, video capsule endoscopy, 24-hour pH studies, BRAVO, anorectal motility disorders, endoscopy, and colonoscopy. He is board certified in gastroenterology and internal medicine.