Dr. Robert S. Wiesen, M.D., is board-certified in Gastroenterology and Internal Medicine. He is fellowship-trained in gastroenterology from UMDNJ-New Jersey Medical School, where he was elected chief fellow. He completed his residency at Beth Israel Medical Center in Manhattan. His special interests include therapeutic endoscopy, endoscopic ultrasound, ERCP, and the management of gastroesophageal reflux disease.
Dr. Robert S. Wiesen, M.D., is board-certified in Gastroenterology and Internal Medicine. He is fellowship-trained in gastroenterology from UMDNJ-New Jersey Medical School, where he was elected chief fellow. He completed his residency at Beth Israel Medical Center in Manhattan. His special interests include therapeutic endoscopy, endoscopic ultrasound, ERCP, and the management of gastroesophageal reflux disease.
The reviews listed below were collected independently of GastroMed Healthcare through rater8. Each review represents an authentic and verified patient experience.
He was very pleasant and explained everything.
(2 weeks ago)
Jun-2026
I had a wonderful experience with Dr. Wiesen. He was kind, thoughtful, and generous with his time. I highly recommend his expertise to anyone looking for an excellent and knowledgeable doctor.
(3 weeks ago)
Jun-2026
Dr. Robert Weisen is a laid-back doctor. At my appointment, even so I felt like my words were not heard. I was told my prognosis was “insert prognosis here,” and I mentioned that I didn't agree. It seemed Dr. Weisen had already made up his mind about the prognosis, and I wasn't able to explain the situation when a flare-up occurs. This is one of the most painful experiences I go through, and it has affected my life—I’ve lost jobs and my career is at risk. I don’t take this lightly, and it’s disheartening when healthcare providers have preconceived notions about who you are based on past history instead of your current character. I am currently figuring out my next step because I don’t agree with the prognosis, but I will follow it. I plan to call my companies and nurse advocate to ask for help, as I feel the prognosis and emergency room assistance I have received aren't adequate. Overall, unless I am with someone like my partner or my parents, someone who doesn’t look like they used
(3 weeks ago)
Jun-2026
Great
(1 month ago)
Jun-2026
Dr Wiesen is excellent. I was seen on time. He makes me feel at ease and listens/cares to any concerns or issues I may have.
(1 month ago)
May-2026
Fantastic Doctor and staff.
(1 month ago)
May-2026
Always thorough and friendly
(1 month ago)
May-2026
Dr Wiesen is a great doctor. His caring ways and his explanations makes it easier to understand about my health.
(2 months ago)
May-2026
I’m a longtime patient. Doctor has always been great, instilling, professionalism, and confidence. Highly recommend.
(2 months ago)
Apr-2026
Was great experience
(2 months ago)
Apr-2026
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GastroMED
25 Monroe Street Bridgewater, NJ 08807
Dr. Robert S. Wiesen, M.D., is a board-certified physician with expertise in Gastroenterology and Internal Medicine.
He completed his medical residency at Beth Israel Medical Center in Manhattan. He then went on to complete his fellowship in gastroenterology at UMDNJ-New Jersey Medical School, where he was elected chief fellow in recognition of his diagnostic and endoscopic skills.
He has presented research abstracts on hepatitis and pruritus at international meetings and the National Institutes of Health.
His special interests lie in therapeutic endoscopy, including endoscopic ultrasound with fine needle aspiration, ERCP with gallstone removal, colonic and esophageal stent placement, and endoscopic mucosal resection. He also performs upper endoscopy and screening colonoscopy with biopsy and polyp removal, and has expertise in diagnosing and managing gastroesophageal reflux disease.
He was very pleasant and explained everything.
I had a wonderful experience with Dr. Wiesen. He was kind, thoughtful, and generous with his time. I highly recommend his expertise to anyone looking for an excellent and knowledgeable doctor.
Dr. Robert Weisen is a laid-back doctor. At my appointment, even so I felt like my words were not heard. I was told my prognosis was “insert prognosis here,” and I mentioned that I didn't agree. It seemed Dr. Weisen had already made up his mind about the prognosis, and I wasn't able to explain the situation when a flare-up occurs. This is one of the most painful experiences I go through, and it has affected my life—I’ve lost jobs and my career is at risk. I don’t take this lightly, and it’s disheartening when healthcare providers have preconceived notions about who you are based on past history instead of your current character. I am currently figuring out my next step because I don’t agree with the prognosis, but I will follow it. I plan to call my companies and nurse advocate to ask for help, as I feel the prognosis and emergency room assistance I have received aren't adequate. Overall, unless I am with someone like my partner or my parents, someone who doesn’t look like they used
Great
Dr Wiesen is excellent. I was seen on time. He makes me feel at ease and listens/cares to any concerns or issues I may have.
Fantastic Doctor and staff.
Always thorough and friendly
Dr Wiesen is a great doctor. His caring ways and his explanations makes it easier to understand about my health.
I’m a longtime patient. Doctor has always been great, instilling, professionalism, and confidence. Highly recommend.
Was great experience