Princeton Gastroenterology Associates

Providing Quality, Affordable Care

About Princeton Gastroenterology Associates

Princeton Gastroenterology Associates is a premier gastroenterology group with five physicians, working alongside our staff to offer our patients the highest care possible.

Princeton Gastroenterology Associates is a regional leader in the treatment of gastrointestinal and liver disorders, serving the Central New Jersey region since 1990. The five board certified physicians, together with a large clinical and administrative support staff comprise our group. With an office and a state of the art endoscopy center in Princeton Junction, PGA provides the highest quality of care available in digestive disease diagnosis, evaluation and management.

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1 Location

33 Conditions

5 Procedures

Meet the Physicians

Our physicians are on staff at Penn Medicine Princeton Medical Center in Princeton, NJ and work at a state-of-the-art ambulatory surgery center that provides superb care for our patients.Our physicians specialize in all digestive disorders including colon cancer screening and prevention, inflammatory bowel disease, gastroesophageal reflux and liver disease

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Information and Resources for Patients

Diet & Nutrition

We hope that you utilize the variety of diet information we have available

Insurance & Billing

We participate in a variety of insurance plans

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What Our Patients Say About Us

Dr. Andrade took care of my situation seamlessly, he was very knowledgeable about my condition and offered insight on what to do about my condition. His colonoscopy practice was pain-free and I didn't have issues after the procedure. His staff is very friendly and will take good care of you.
Yurani F.
Yurani F.
Dr Bellows is very patient and knowledgeable. He will patiently listen to your problems unlike other doctors that are just rushing through the 3 minutes they came see you in the exam room. He will explain the procedure without being judge mental. 100000/10 bedside manners.
Nayab A.
Nayab A.
Dr. Shriver was very nice and listened to everything I said, she explained the next steps in great detail and made sure she answered any questions I had. The nursing staff was courteous and attentive. I would highly recommend Dr. Shriver.
Melanie R.
Melanie R.
I strongly recommend Dr Osias. Very professional and caring, and takes time to answer questions. His nurse Lisa is very helpful too in explaining procedures and cautions related to the treatment.
Weier L.
Weier L.
Great practice. Staff at check in helpful and kind. Dr. Rho was very compassionate to some concerns I have about tests needed. He spent as much time as I needed to understand my condition. Check out was efficient and everyone was compassionate and helpful. I am in healthcare and I hope my clients feel as cared for as I did during my visit. I also witnessed staff assisting elderly patient with directions for upcoming appointment.
Tammy H.
Tammy H.
I have been a patient for many years and I alway receive the best medical care. The staff is friendly and extremely helpful. Dr. Meirowitz takes his time and explains any procedures thoroughly. His skill as a endoscopist is exceptional. I would highly recommend Dr. R. Meirowitz for all your GI related issues.
PR
PR
Dr. Andrade and his staff made my visit a stress-free experience. He spoke with me before and after the procedure and answered all my questions in a clear and caring manner. They are an experienced and organized team who made me feel very comfortable and I would highly recommend him to anyone looking for a GI doctor.
Laura K.
Laura K.
Dr. Bellows listened patiently while I explained my entire medical history and he took the time to address all of my questions and concerns before creating a plan of treatment for me. I was very concerned that I would be pushed into taking PPI's or some other medication for my GI issues, but Dr. Bellows did not pressure me in that direction.
Dawn H.
Dawn H.
I was seen right away. Dr. Shriver was able to quickly diagnose my issue with the minimum of discomfort possible, and recommend treatment. I am very happy with her manner, the manner of the nurse assisting her, and my overall experience.
Nathan L.
Nathan L.
Dr. Osias and staff (at both his office and the surgical center--Carol, Maureen, Dr. Hirsh to name a few) are professional, friendly, and made me feel very at ease. Was recommended to Dr. Osias by someone in my office and have already recommended him to someone else in my office.
Jill
Jill
Dr. Aloysius Rho is the best of the best. He is extremely knowledgeable and caring. He took his valuable time to explain the details when I didn’t understand. After the exam and tests, he even called to inform me the next steps I should follow. He wanted to make sure I was okay. It's so rare to find a doctor that is brilliant, highly skilled and dedicated. I would give him 10 stars if I could. Dr. Rho is a true professional and I would recommend him to anyone. The staff in his office is also very friendly and helpful.
Yinfu S.
Yinfu S.
Dr. Meirowitz is the consummate professional - he has been my gastroenterologist for over 20 years and he provides excellent care.
DH
DH
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From the Blog

ADH-Complications-Linked-to-GERD
GERD

Health Complications Linked to GERD

If left untreated, GERD can lead to complications including esophagitis (inflammation of the esophagus), strictures (narrowing of the esophagus), or even Barrett’s esophagus, a condition that increases the risk of esophageal cancer.

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June 12, 2025

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