Dr. Peter Rosenberg, MD | Pasadena, CA | Gastroenterology

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Dr. Peter Rosenberg specializes in gastroenterology, focusing on digestive system disorders and related conditions. They earned their medical degree from Harvard Medical School and completed residency training at Massachusetts General Hospital. With 33 years of clinical experience, Dr. Rosenberg brings extensive knowledge to patient care. They provide services in English.

Dr. Rosenberg practices at California Hospital Medical Center and sees patients in Pasadena, California. Their expertise includes treating colon polyps, abdominal pain, and upper gastrointestinal bleeding. They perform specialized procedures such as colonoscopy, lower gastrointestinal endoscopy, and upper gastrointestinal endoscopy. Patients have given Dr. Rosenberg an average rating of 4.9 stars.

AI-generated from data on this provider profile.

accepting new patients
4.8

27 Ratings
33 years of experience
56 insurance plans accepted
speaks English
Massachusetts General Hospital
18 written reviews
1 award
1 specialty
13 areas of expertise
1 board certification
1 hospital affiliation
1 office location

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Dr. Rosenberg's Ratings and Reviews

4.8

27 Ratings with 18 written Reviews

Average Wait Time 18 Minutes

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Dr. Rosenberg?

Patients’ Perspective

Gave an accurate diagnosis: (21) Did WellNeeds Improvement (0)
Had a good bedside manner: (21) Did WellNeeds Improvement (0)
Spent time with me: (21) Did WellNeeds Improvement (0)
Provided follow-up after the visit: (20) Did WellNeeds Improvement (0)
Flexible scheduling: (13) Did WellNeeds Improvement (2)
Saw me in a timely manner: (1) Did WellNeeds Improvement (0)
Staff was courteous: (1) Did WellNeeds Improvement (0)

27 ratings & reviews

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Showing 1 to 10 of 18 reviews

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I have been a patient of Dr Rosenberg for several years now. I cannot say enough good things about him and his staff. I have been having issues with my insurance approving my treatment and Dr Rosenberg and his wonderful staff have really helped me fight for the care I need. He is a shining example of what medical professionals should aspire to in both level of care and excellence in getting the patients what they need to be healthy.

April 22nd, 2026

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He’s very experienced doctor, he obviously knows what he’s doing and knows how to listen to his patiences .

January 16th, 2026

1 person found this helpful

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He had a calming and compassionate way to tell you the truth without embellishing it...I like his cross referencing of different health areas/issues

September 30th, 2025

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One of the best doctor visits I’ve had in years. Dr. Rosenberg was compassionate comprehensive and gave me great peace of mind today.

July 9th, 2025

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Undoubtedly the best physician; thorough, compassionate and stellar….

April 30th, 2025

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Excellent Dr.. he’s knowledgeable, patient and thorough. He takes time to explain things and answers questions, not rushing you out and even responds to email questions.

February 10th, 2025

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Dr Rosenberg takes the time to know the history of the visit. It doesn't feel rushed. He is thorough, and takes the necessary precautions to rule out any possible medical conditions. He has great bedside manners.

February 10th, 2025

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Dr Rosenberg is simply the best. He is knowledgeable, thoughtful, personable, and prepared.

July 31st, 2024

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Dr. Rosenburg Is a five star physician Oh!

April 6th, 2024

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My experience with Dr. Rosenberg was excellent. He is thoughtful and thorough. He listens carefully and has a good bedside manner along with being a exceptional physician.

November 8th, 2023

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Unio Specialty Care - Gastroenterology

50 Alessandro Pl Ste 410Pasadena, CA 91105

Tel: (626) 659-5419


Dr. Peter Rosenberg, MD	Ji Soo Choi, APRN	Rachel Oliver, APRN	Chimdi Mfebe, APRN
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.8 (27 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
33 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English	Speaks English	Speaks English
Pasadena , CA	SACRAMENTO , CA	SACRAMENTO , CA	Little Rock , AR
Med School: Harvard Medical School	Med School: New York University	Med School: University of South Alabama	Med School: Chamberlain University College of Nursing
Current Profile	View Profile	View Profile	View Profile

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Gastroenterology

Abdominal Pain
Acid Reflux Disease (Gastroesophageal Reflux / GERD)
Acid Reflux Disease (GERD)
Capsule Endoscopy
Celiac Disease
Colonoscopy
Constipation
Hemochromatosis
Hemorrhoids
Hepatitis
Irritable Bowel Syndrome (IBS)
Ulcerative Colitis
Viral Human Hepatitis

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Residency

Massachusetts General Hospital

Medical School

Harvard Medical SchoolGraduated in 1993

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Does Dr. Peter Rosenberg accept my insurance?: You can see the insurance plans that Dr. Peter Rosenberg accepts on their Vitals profile.
Does Dr. Peter Rosenberg accept virtual/telehealth appointments?: Dr. Peter Rosenberg has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Peter Rosenberg's office located?: Dr. Peter Rosenberg's office is located at 50 Alessandro Pl Ste 410, Pasadena, CA, 91105.
Is Dr. Peter Rosenberg accepting new patients?: Dr. Peter Rosenberg is accepting new patients on Vitals. View Dr. Peter Rosenberg's profile on Vitals to make an appointment.
Which hospitals is Dr. Peter Rosenberg affiliated with?: Dr. Peter Rosenberg is affiliated with California Hospital Medical Center.

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