Dr. Jeffrey S. Unger, M.D., is board-certified in Gastroenterology and Internal Medicine. He is fellowship-trained in Gastroenterology from New York University Medical Center. He earned his medical degree from Boston University School of Medicine and completed his residency at Columbia-Presbyterian Medical Center. Dr. Unger served two terms as Chief of Gastroenterology at Robert Wood Johnson at Somerset and has a special interest in liver and reflux disease.
Dr. Jeffrey S. Unger, M.D., is board-certified in Gastroenterology and Internal Medicine. He is fellowship-trained in Gastroenterology from New York University Medical Center. He earned his medical degree from Boston University School of Medicine and completed his residency at Columbia-Presbyterian Medical Center. Dr. Unger served two terms as Chief of Gastroenterology at Robert Wood Johnson at Somerset and has a special interest in liver and reflux disease.
The reviews listed below were collected independently of GastroMed Healthcare through rater8. Each review represents an authentic and verified patient experience.
The very best!!
Rated 5 out of 5 stars
(1 week ago)
Oct-2026
Always a great experience dealing the very personable Dr. Unger!
Rated 5 out of 5 stars
(2 weeks ago)
Oct-2026
Always the best.
Rated 5 out of 5 stars
(1 month ago)
Sep-2026
The most caring and professional do got
Rated 5 out of 5 stars
(1 month ago)
Sep-2026
Very professional very clear explainations
Rated 5 out of 5 stars
(1 month ago)
Aug-2026
Outstanding physician and individual.
Rated 5 out of 5 stars
(2 months ago)
Aug-2026
This is my first review to a doctor in my life. It’s so fortunate to find Dr Unger ! I have this mysterious abdominal pain for a year and no other doctors were able to diagnose and treat it properly. Either they were not very experienced or they seemed not care my concerns ( or both). Dr. Unger not only carefully listened ( even recorded) my complaints and disease development but also he quickly collected all the test results from other doctors in order to make the best diagnosis. I am so happy I am on the right path to treat my condition. I have recommended Dr Unger to my friends. In these days it’s so hard to find a good specialist! Dr Unger is so knowledgeable, pleasant, caring and funny!!
Rated 5 out of 5 stars
(2 months ago)
Jul-2026
Very thoughtful and alert to my concerns
Rated 5 out of 5 stars
(2 months ago)
Jul-2026
Very nice. Down to earth and personable.
Rated 5 out of 5 stars
(2 months ago)
Jul-2026
Dr Under is kind, attentive, highly intelligent and thorough! I highly recommend him.
Rated 5 out of 5 stars
(2 months ago)
Jul-2026
GastroMED
25 Monroe Street Bridgewater, NJ 08807
Dr. Jeffrey S. Unger, M.D., is a board-certified physician with expertise in Gastroenterology and Internal Medicine.
He attended Boston University School of Medicine in Boston, MA, for his medical degree. He then completed his Internship and Residency in Internal Medicine at Columbia-Presbyterian Medical Center in New York. To further specialize his skills, Dr. Unger completed his Fellowship in Gastroenterology at New York University Medical Center in New York.
Dr. Unger is board-certified in both Gastroenterology and Internal Medicine. He has been an Attending Physician in the Department of Medicine, Division of Gastroenterology, at the Robert Wood Johnson at Somerset since 2000 and served for two terms as Chief of Gastroenterology at the same institution.
He has a special interest in liver disease and reflux disease. His procedural expertise includes endoscopy, colonoscopy, biopsy, polypectomy, variceal banding, endoscopic retrograde cholangiopancreatography, biliary stenting, gallstone extraction, infrared photocoagulation of hemorrhoids, argon plasma coagulation, and capsule enteroscopy. He has also written many abstracts and publications in the field of Gastroenterology and has served on various committees at Robert Wood Johnson in Somerset.
The very best!!
Always a great experience dealing the very personable Dr. Unger!
Always the best.
The most caring and professional do got
Very professional very clear explainations
Outstanding physician and individual.
This is my first review to a doctor in my life. It’s so fortunate to find Dr Unger ! I have this mysterious abdominal pain for a year and no other doctors were able to diagnose and treat it properly. Either they were not very experienced or they seemed not care my concerns ( or both). Dr. Unger not only carefully listened ( even recorded) my complaints and disease development but also he quickly collected all the test results from other doctors in order to make the best diagnosis. I am so happy I am on the right path to treat my condition. I have recommended Dr Unger to my friends. In these days it’s so hard to find a good specialist! Dr Unger is so knowledgeable, pleasant, caring and funny!!
Very thoughtful and alert to my concerns
Very nice. Down to earth and personable.
Dr Under is kind, attentive, highly intelligent and thorough! I highly recommend him.