What patients are saying
Overall rating
4.91
Average wait time
4.52
Bedside manner
4.94
“Great service! Great staff and Dr provided amazing bed side manner
However, the intake process is electronic and could use revamping ”
Miesha Y.May 7, 2026
“Took his time to get to know me and understand my complaints. Well mannered and professional.
Addressed issues.”
Tishana P.August 25, 2024
About Dr. Charnjit Singh
Dr. Charnjit Singh, MD, MBA, is a highly skilled gastroenterologist with over 28 years of experience. He specializes in colon cancer screening, reflux disease, liver disease, and inflammatory bowel conditions, focusing on adult patients, 18 and older. He is known for his compassionate and patient-centered approach, creating a welcoming environment where patients feel heard and respected. He and his staff strive to empower patients to make informed decisions about their health.
Dr. Singh completed his undergraduate and medical education at Boston University, followed by an internal medicine residency at Northwestern University's McGaw Medical Center and a fellowship in gastroenterology and hepatology at the University of Washington Medical Center in Seattle.
Dr. Singh is an active mentor to young gastroenterologists, college, and medical students. He is board certified by the American Board of Gastroenterology and affiliated with Mount Sinai South Nassau, as well as the American Gastroenterological Association and the American College of Gastroenterology.
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In-network insurances
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Aetna
BlueCross BlueShield
Cigna
Emblem Health
UnitedHealthcare
UnitedHealthcare Oxford
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Acute gastrointestinal bleeding
Chronic indigestion without clear cause
Chronic Inflammatory Bowel Disease (IBD)
Irritable Bowel Syndrome (IBS)
Colonoscopy
Upper GI endoscopy
Acute gastrointestinal bleeding
Chronic indigestion without clear cause
Chronic Inflammatory Bowel Disease (IBD)
Irritable Bowel Syndrome (IBS)
Office location
Education and background
Practice names
Hospital affiliations
- Mount Sinai South Nassau
Board certifications
- Gastroenterology (American Board of Internal Medicine)
- American Board of Internal Medicine
Education and training
- Medical School - Boston University School of Medicine, Doctor of Medicine
- McGaw Medical Center of Northwestern University, Residency in Internal Medicine
- Boston University (Bachelor's)
- Washington Medical Center, Fellowship in Gastroenterology and Hepatology
Professional memberships
- American Gastroenterological Association
- American College of Gastroenterology
Languages spoken
- English
Provider's gender
Male
NPI number
1285603571
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.91
Wait time
4.52
Bedside manner
4.94
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
215 reviews
Most relevant
Dr. CJ was awesome. I would recommend him to anybody looking for a GI Doc. He was a pleasure.
Less than 6 months agoMichael L.Verified patient
The doctor bedside manner was top level. Definitely recommend this doctor.
April 25, 2026Frederick P.Verified patient
Took his time to get to know me and understand my complaints. Well mannered and professional.
Addressed issues.
August 25, 2024Tishana P.Verified patient
My experience was very good...Dr nice ..explain everything in a clear way
Less than 6 months agoInitials hidden
Great experience. Office staff was nice and Dr Singh was amazing. Easy to talk to and made me feel very comfortable.
January 30, 2024Jennifer R.Verified patient
He's the best. Went and saw a different doctor due to location and immediately regretted it. Worth the trip onto the Island.
May 21, 2015Kevin O.Verified patient
My visit with Dr Singh was amazing. Listens well! Great bedside manner.
The staff was great too! ????
June 28, 2024Loretta S.Verified patient
Everyone very efficient & professional. Put me at ease. Took an in depth history. All my concerns addressed.
August 3, 2023Audrey G.Verified patient
Every visit that I have is very informative, comfortable, and pleasant. The staff is very helpful and nice, always!
More than 1 year agoCH
Very calm, practical doctor, particularly considering his field. I will definitely be keeping him for future need.
May 22, 2015Linda B.Verified patient
My doctor for almost 20 years. He listens, he is kind, empathetic, and makes a plan to help.
April 24, 2024Stefanie A.Verified patient
Every visit I have is very informative, comfortable, and pleasant. The staff is very helpful and nice, always!
More than 1 year agoCH
The doctor is wonderful patient informative and direct. Not rushed made me feel totally comfortable.
April 26, 2023Karen E.Verified patient
Dr. Singh is a great physician, he listens and addresses any concerns you have. I highly recommend him.
More than 1 year agoAman K.Verified patient
Dr. Singh is knowledgeable and he listens to your concerns. Glad to have him as my gastroenterologist.
April 21, 2022Bledry C.Verified patient
Very personable and easy to talk to. I felt like I knew Dr. Singh for years and it was my first visit.
January 14, 2021Michael B.Verified patient
Dr. Singh was so nice, warm, & friendly. He made me feel comfortable right away. I highly recommend him!
August 31, 2016Nicole B.Verified patient
Staff was wonderful, doctor was nice. Basic run of the mill..try this med see if you feel better.
More than 1 year agoInitials hidden
always a great experience when I visit this dr. He is definitely one of the best Dr's I have.
More than 1 year agoInitials hidden
Very professional & thorough. Made me very comfortable & and made sure I understood everything.
September 2, 2016Lorie D.Verified patient
I thought he was very knowledgeable about everything we discussed. He was very professional.
More than 1 year agoNoelle G.Verified patient
Dr. Singh is an excellent Dr. who truly cares about his patients. A finer dr. cant be found.
More than 1 year agoJL
Very pleased with visit. Staff and doctor very efficient and friendly. Highly recommend ??
February 7, 2020Thomas L.Verified patient
Have gone to Dr. Singh for years. Professional, genuinely caring and knowledgeable.
September 15, 2022Linda B.Verified patient
Best Gastro I’ve had in my entire life, and I’ve had Crohn’s for 13 years. A+++++++++
May 2, 2018David W.Verified patient
He is absolutely wonderful. He is very friendly, caring, helpful, and knowledgeable.
April 1, 2015Marlena P.Verified patient
Very attentive and understanding. My husband and I have been seeing him for years.
October 10, 2017Darcy C.Verified patient
Dr. Singh is a very good doctor . He is very knowledgeable and a nice guy too.
More than 1 year agoKathleen S.Verified patient
Very nice Dr. Was very thorough with you never felt rushed. Highly recommend.
August 31, 2016Leonard R.Verified patient
It was a pleasure to be seen by Dr.Singh incredible bedside manner.
August 9, 2023Patricia A.Verified patient
Very pleased with Dr Singh and his entire staff. Very efficient and helpful
November 4, 2013Peter H.Verified patient
He was wonderful. Put me at ease. Very knowledgeable and extremely kind!
More than 1 year agoInitials hidden
It was very productive. Excellent doctor with equally excellent staff.
December 18, 2014Angelita P.Verified patient
Excellent physician would definitely recommend to others
October 23, 2023Jacqueline S.Verified patient
Dr Singh is welcoming and makes you feel comfortable in his office.
January 6, 2016Virginia G.Verified patient
Outstanding office staff. They were welcoming and professional.
More than 1 year agoPatrica B.Verified patient
Excellent practitioner. Incredibly knowledgeable. First rate!!
March 16, 2021Landon B.Verified patient
He is the nicest doctor that I have been to in a long time.
July 20, 2017Marianne N.Verified patient
Nicest doc ever. Took his time with me. Great personality!
February 9, 2020Jamie C.Verified patient
Felt comfortable with him and feel I’m in great hands
More than 1 year agoRichard K.Verified patient
Great service! Great staff and Dr provided amazing bed side manner
However, the intake process is electronic and could use revamping
May 7, 2026Miesha Y.Verified patient
I will be recommending Dr. Singh to everyone. He is a great physician who really cares about his patients. He is an excellent listener and spent as much time with me as I needed, answering all my questions. He was knowledgable, kind and empathetic.
August 7, 2024Cecilia D.Verified patient
Excellent Doctor
June 13, 2024Walter B.Verified patient
Dr. Singh is one of the kindest and most personable doctors I have ever been to. He makes you feel like a friend not just a patient; he listens compassionately to everything/all your concerns and explains everything very clearly. Seriously one of the best.
April 10, 2024Marissa C.Verified patient
Dr. Singh is an amazing Dr. and diagnostician. More importantly he takes the time to listen to you without interruption. He cares so much about your well being. Dr. Singh answered all my questions with genuine concern. He is kind and humble and has a wonderful bed side manner.
February 28, 2024Jean B.Verified patient
Very good doctor, really cares about his patients
February 22, 2024Edwin D.Verified patient
I have known Dr. Singh for many years his bedside manner is amazing. He was thorough and patient and wanted to make sure he heard all of my concerns. He is extremely professional and makes you feel very comfortable. Highly recommend him.
October 25, 2023Maureen S.Verified patient
Dr. Singh was wonderful! He is open and warm and friendly and knowledgeable and a good listener. The staff is warm and helpful and very patient. I would recommend this office to my family members! All my questions were answered fully.
Parking was not a problem for my 5:15 PM appointment.
October 12, 2023Paul Z.Verified patient
Dr. Singh is one of the kindest doctors. He makes me feel completely at ease. He listens and addresses any and all ooncerns /questions you might have.
September 26, 2023Maureen M.Verified patient
If you or anyone you know has a fear of getting a colonoscopy, go see Dr Singh. He will put you at ease and you will see that it is really no big deal. It could save your life.
August 23, 2023Jennifer M.Verified patient
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How soon can I make an appointment with Dr. Charnjit Singh?
Generally, Dr. Charnjit Singh has appointments available on Zocdoc within 1 week. You can see Dr. Singh's earliest availability on Zocdoc and make an appointment online.
Is Dr. Charnjit Singh accepting new patients?
Dr. Charnjit Singh generally accepts new patients on Zocdoc. You can see Dr. Singh's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Charnjit Singh accept my insurance?
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Can I make an appointment with Dr. Charnjit Singh online?
Yes, you can make an appointment online with Dr. Singh using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. Charnjit Singh affiliated with?
Dr. Charnjit Singh is affiliated with Mount Sinai South Nassau.
What practice does Dr. Charnjit Singh work with?
Dr. Charnjit Singh works with Optum Medical Care, P.C..
Where is Dr. Charnjit Singh's office located?
Dr. Charnjit Singh's office is located at 176 N Village Ave, Rockville Centre, NY 11570.
Which board certifications does Dr. Charnjit Singh have?
Dr. Charnjit Singh is certified by Gastroenterology (American Board of Internal Medicine) and American Board of Internal Medicine.
What are common reasons for patients to see Dr. Charnjit Singh?
Dr. Charnjit Singh frequently sees patients for Colonoscopy, Gastroenterology Consultation, Hemorrhoids, Illness, and Weight Loss Consultation. You can see other visit reasons for Dr. Charnjit Singh on their profile.
What languages does Dr. Charnjit Singh speak?
Dr. Charnjit Singh speaks English.
How do patients rate Dr. Charnjit Singh in reviews?
215 patients have reviewed Dr. Charnjit Singh. The overall rating for this doctor is 4.91/5. They have a 4.94/5 rating for bedside manner and a 4.52/5 rating for wait time. You can read individual reviews and ratings on their profile.