S. Charles Oh, M.D.

4.1 out of 5 

“I want my patients to enjoy the best health possible. Listening, understanding, and educating are central to my philosophy of care.”

Accepting New Patients: 
Office Location: 
Glen Ridge
311 Bay Avenue
Suite 300
Glen Ridge, NJ 07028
United States
Schedule an Appointment: 

S. Charles Oh, M.D., specializes in the treatment of digestive diseases, including anorectal conditions, hemorrhoids, colonic neoplasms, cancer, polyps, diverticulosis, esophageal reflux, gastritis, gastroesophageal reflux disease (GERD), hepatitis, hiatal hernia, inflammatory bowel disease (IBD), ulcerative colitis, and Crohn’s disease.

Dr. Oh received his medical degree from Mt. Sinai School of Medicine. He completed his residency in Internal Medicine at Beth Israel Medical Center/ Mount Sinai School of Medicine and a Clinical Fellowship in Gastroenterology at Lahey Clinic Medical Center/Beth Israel Deaconess Hospital. He is board certified in gastroenterology by the American Board of Internal Medicine.

Dr. Oh has been practicing medicine for nearly three decades. Known for his warm and approachable style, he was recently named a Top Doctor by NJ Monthly Magazine.

Featured Reviews



My visit with Dr. Oh was seamless in its' scheduling and coordination of care I received from office personnel. Dr. Oh is very easy to speak to and he understands that I am interested in my own health. So, once the doctor listened carefully, he prescribed a course of treatment to include a colonoscopy. Since I have experienced problems in the past with the removal of a sizeable polyp and periods of constipation which included an episode of bowel impact, the colonoscopy at this point was a good idea. I told the doctor that I really wanted to know what was causing me to have constipation. Since I am a major fan of large doses of fruits & vegetables, a surgeon at Hackensack University Medical Center in Hackensack stated that I was eating too much of these. I drink at least 2 gallons of water daily along with other liquids and eat sufficient (albeit possibly too much) fiber, it is a puzzle that needs to be solved. Hopefully, the Colonoscopy will disclose why I am having problems.

   — One Of The Best!


Very caring, understanding, respectful and kind.

   — Mia Meeks


In visiting Dr Oh I feel confident in his medical expertise and his insight into my concerns and questions.

   — Grateful


Best gastroenterology doctor in the area, I have been going there for over 10 years.

   — Fernando Diban


I saw Dr Oh several years ago and then again last week. He is an outstanding doctor. He spends time with his patients and really listens. He is very kind, caring, and reassuring. I wouldn’t want to go to anyone else.

   — Bonnie G


Dr. Oh is a great gastro Doctor and a class act. He takes the time to talk with you and understand your issues. I have been going to Dr. Oh for years now and during every visit he sits and explains to me what is going on with my issues and what needs to be done to help resolve them. He will even draw diagrams on his board in his office to help you understand better If needed. I had my first ever colonoscopy done this week. Hesitant and even a little bit nervous I must say. He explained and made the procedure just as it went. A breeze. The Mountainside Hospital staff was exceptional too. If you are in search of a top notch gastroenterologist. Look no further.

   — JIMMY B

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