Dr. Peter M. Rosenberg, M.D. attended Harvard College and Harvard Medical School, after which he completed his Internal Medicine residency and Gastroenterology/ Hepatology fellowship at Massachusetts General Hospital. His interests include liver disease, quality improvement and outcomes assessment, and capsule endoscopy, as well as general gastroenterology.
Dr. Peter M. Rosenberg, M.D. attended Harvard College and Harvard Medical School, after which he completed his Internal Medicine residency and Gastroenterology/ Hepatology fellowship at Massachusetts General Hospital. His interests include liver disease, quality improvement and outcomes assessment, and capsule endoscopy, as well as general gastroenterology.
The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.
Dr R is possibly the best practitioner out there with excellent bedside manner. He listens with care and offers pertinent, constructive advice.
(2 weeks ago)
Sep-2026
Excellent Doctor!
(2 weeks ago)
Sep-2026
Dr. Rosenberg is the only gastroenterologist that really seems to know my issues and give me some advice on how to help me!! He answered all of my questions and used data to back up his answers. Thanks so much, Dr. Rosenberg!
(2 weeks ago)
Aug-2026
He is beyond 5 stars. Every doctor should be like him.
(3 weeks ago)
Aug-2026
Dr. Rosenberg is kind, caring and good at his job.
(3 weeks ago)
Aug-2026
Outstanding!
(1 month ago)
Aug-2026
Very professional and helpful.
(1 month ago)
Aug-2026
Dr. Rosenberg provides excellent care to me. He is very knowledgeable, thorough, friendly and caring.
(1 month ago)
Aug-2026
Very good doctor
(1 month ago)
Aug-2026
Very Kind and Helpful Dr with great Knowledge! I appreciate all the guidance
With my stomach issues. Thank you so much!
(1 month ago)
Aug-2026
Read More
GI-Pasadena - Alessandro Place
50 Alessandro Place Suite 410 Pasadena, CA 91105
Dr. Peter M. Rosenberg, M.D. attended Harvard College and Harvard Medical School, after which he completed his Internal Medicine residency and Gastroenterology/Hepatology fellowship at Massachusetts General Hospital. He has lived in Southern California since completing training in 1999. His interests include liver disease, quality improvement and outcomes assessment, and capsule endoscopy, as well as general gastroenterology.
Dr. Rosenberg is a member of the medical staff at Huntington Hospital in Pasadena, where he has been active in patient care, teaching of residents and medical students, and positions of medical staff leadership. He is also a proud member of the medical staff of Pasadena Endoscopy Center.
Dr R is possibly the best practitioner out there with excellent bedside manner. He listens with care and offers pertinent, constructive advice.
Excellent Doctor!
Dr. Rosenberg is the only gastroenterologist that really seems to know my issues and give me some advice on how to help me!! He answered all of my questions and used data to back up his answers. Thanks so much, Dr. Rosenberg!
He is beyond 5 stars. Every doctor should be like him.
Dr. Rosenberg is kind, caring and good at his job.
Outstanding!
Very professional and helpful.
Dr. Rosenberg provides excellent care to me. He is very knowledgeable, thorough, friendly and caring.
Very good doctor
Very Kind and Helpful Dr with great Knowledge! I appreciate all the guidance With my stomach issues. Thank you so much!