About Us


About  Atlantic Gastroenterology

Atlantic Gastroenterology Associates (AGA) is on the cutting edge of gastrointestinal diagnosis and treatment. Established in 1979 as a small southern New Jersey practice, AGA has flourished to become the largest and most sophisticated gastrointestinal treatment center in three counties. The skilled and compassionate patient care found at AGA is enhanced by breakthrough diagnostic tools that use miniaturized technology to make diagnosing GI conditions more accurate and comprehensive—yet less invasive—than ever before.

Board certified and nationally recognized gastroenterologists, nurse practitioners and over 40 support personnel care for more than 5,000 patients each year. These patients benefit from a practice that historically is the first in the area to use the latest and best technology including:

Providing you with the best doctors for the best care

Barry Kaufman, M.D., F.A.C.G., C.N.S.P.

Active in the medical community, Dr. Kaufman served as Chief of Gastroenterology at AtlantiCare Regional Medical Center for more than 30 years, and is currently an attending physician there

Gary A. Rosman, M.D., F.A.C.G., A.G.A.F., AGA, ACG

For nearly three decades, Gary A. Rosman, M.D. has set the standard for quality care in gastroenterology at AGA and affiliated medical centers. In fact, his work on a quality committee for a regional medical center resulted in national recognition. 

Donald Petroski, M.D., FACG, FACOI, FAGA, ASGE

Dr Petroski Trained At Hahnemann University School Of

Medicine Of Philadelphia With Postgraduate Training In Internal Medicine  (1966-1973) Followed By Liver Disease And Gastroenterology Education At Yale And Uconn (1973-1975).

Brian Berberian M.D.

Gastroenterology Specialist  and has over 19 years of experience in the medical field. He graduated from Universidad Autonoma De Guadalajara, Facultad De Medicina medical school in 2001. He completed his medical training at the Universidad Autónoma de Guadalajara Facultad de Medicina Guadalajara. . Fluent in English and Spanish, Dr. Berberian listens to each patient's health concerns and works on their treatment accordingly. He gives them his undivided attention and practices with the goal of helping each of them lead healthy and fulfilling lives.