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.
He was amazing! The team was great. The absolute best!
(3 days ago)
Oct-2026
Very thoughtful and clear discussion, taking time to address all my concerns.
(5 days ago)
Oct-2026
He’s the best!
(1 week ago)
Sep-2026
Dr. Rosenberg reviews my history and past reports and is well prepared before procedures. He is personable and reassuring. I hold him in the highest regard after these many decades of colonoscopies.
(1 week ago)
Sep-2026
Great experience. Nice to speak with the doctor before and after. Friendly and caring nursing staff. Efficient facility.
(1 week ago)
Sep-2026
Dr R is possibly the best practitioner out there with excellent bedside manner. He listens with care and offers pertinent, constructive advice.
(1 month ago)
Sep-2026
Excellent Doctor!
(1 month 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!
(1 month ago)
Aug-2026
He is beyond 5 stars. Every doctor should be like him.
(1 month ago)
Aug-2026
Dr. Rosenberg is kind, caring and good at his job.
(1 month ago)
Aug-2026
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.
He was amazing! The team was great. The absolute best!
Very thoughtful and clear discussion, taking time to address all my concerns.
He’s the best!
Dr. Rosenberg reviews my history and past reports and is well prepared before procedures. He is personable and reassuring. I hold him in the highest regard after these many decades of colonoscopies.
Great experience. Nice to speak with the doctor before and after. Friendly and caring nursing staff. Efficient facility.
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.