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Qualifications and Experience
Based in Concorde Medical Group’s Kips Bay office, Dr. John Ackert is a highly regarded expert in gastroenterology. He received his medical training here in New York, having graduated from St. John’s University in Queens with a B.S. in Biology and from New York University’s School of Medicine. He went on to complete his medical training at NYU Medical Center and Bellevue Hospital. Dr. Ackert has also participated in numerous research studies in gastroenterology and has published those findings in the publications Gastroenterology and The American Journal of Gastroenterology.
Verified Patient Reviews
Very thoughtful Doctor who asked a lot of great questions and didn't rush you. You can tell he genuinely cares about his patients - highly recommended.
Disorganized and unprofessional office.
Wonderful doctor, great office, I really recommend. Both me and my husband are very pleased with the visit to Dr Ackert's office. Everyone was very professional, nice, knowledgeable and helpful!
Hard to get in touch with after appointment. Excellent technician.
I would never recommend Dr. Ackert to anyone. He did three things that were highly unacceptable: 1. He ordered a procedure to be done prior to consulting lab tests results. 2. He asked me if I had HIV in a very condescending way. "Are you an HIV person?" This is extremely offensive to people suffering from this disease. 3. He misread another order of lab results and did not correct himself until I asked for a physical copy two weeks later.
Very efficient and professional experience.
He is very kind and never rushes me.
Would highly recommend Dr. Ackert–very personable, friendly, and engaged with his patients.
He is a very attentive Dr.
As always brilliant, professional and correct.
He explains everything and is extremely professional and friendly.
Great personality and good diagnosis.
Great personality and technician. Often booked however.
Very professional and supportive. Explained my upcoming procedures and answered my questions. Next will see how well the actual procedures are handled.
Nice man and great doctor
Dr. Ackert took the time to sit with me and explain to me exactly what was going on with my body and what I needed do to fix it, in terms that I could easily understand. He was so friendly and so helpful. I'm so glad I went to see him!
An absolute pleasure with easy and informative conversation. Everything is handled in a professional manner.
Dr Ackert was great and he had taken good care of me!
Excellent. Highly recommended.
Doctor Ackert was great! I would recommend him to everybody. He was listening carefully to my medical history, made a lot of questions and answered to all my questions.
rather brief exam with no results.
lovely man knowledge and kind.
Seemed competent , congenial and caring
He's terrific- located, knowledgeable, and thorough!
always the most professional and most pleasant man.
I was very pleased about my visit. He was very professional and kind. I highly recommend Dr. Ackert, and would definetly go there again.
He is excellent - smart, thoughtful, listens to the patient, and open to ideas.
Excellent as always.
He is always easy to talk to, friendly, and a pleasure to see. I always suggest him to friends who need this sort of specialist.
He is so personable, professional and thorough. He took all the time I needed and explained treatment options. I highly recommend him.
Very pleasant and friendly demeanour and takes the time to explain and ensure I understand.
Dr. Ackert was very professional, kind and thorough in his explanation of the colonoscopy procedure. He really took the time to talk to me like a person without looking at his computer instead of me. He did my first colonoscopy 10 years ago and I remember that he and his staff were wonderful!
Dr. Ackert was so easy to speak with and very considerate. He made it easy for me to ask questions, quickly identified my issue, and offered various alternatives for me to consider. In addition, the office itself is clean and organized and the staff was very nice as well.
Very nice man..great Dr
Excellent service. I wentnin the korning and before I had finished filling out my paperwork they had called me in. Doc is a gentleman, explains procedure and answers questions in a simple manner. Staff is super nice. Stephany is the best. I didn't even feel it when she drew my blood, and I have tough veins!!! I will be coming back for follow up. They also gave me samples! Left with a goodie bag :-)
Dr Ackert is a highly personable, extremely caring and quite honestly brilliant at working out solutions to improve his patients standard of living. I feel extremely fortunate to have found such an excellent doctor.
Great man a little weak on diagnosis.
He is very personable and experienced professional. He gets right to the point. He is very easy to talk with while being supportive and knowledgeable.He explains everything and is clear and objective. I would recommend him to anyone.
Dr. Ackert was recommended to me by my primary doctor, who uses him too. I can't be happier. He is a lovely person, extremely positive, and very considerate. He also seems to be an excellent doctor who is very good at what he does. I would not see anyone else.
Dr. Ackert was absolutely wonderful! I arrived 20 mins early for my appointment and was taken before I even had time to start filling out the paperwork. Dr. Ackert was extremely thorough and took the time to explain every single detail to me. I felt very comfortable with him and would highly recommend him!
John Ackert is the best.
Dr. Ackert is wonderful - I just moved to NYC and was looking for a new gastroenterologist who was understanding, caring and knowledgeable about my condition and I have definitely found one in Dr. Ackert. He listened intently to my history and had a smile and a cheerful disposition throughout our discussion. I will definitely be returning.
Zocdoc gave me a time of 9:30 am when my appointment was really 11:30. Procedure was done at 1 pm. I waited over three hours due to that mistake!
I liked Dr. Ackert tremendously and he had great bedside manner. Very informative and I left without any questions about my condition. I'm due for a checkup with him this week and trust him very much.
This was a follow up appointment so the majority of it was talking about how I felt since I had finished my most recent course of medication. Dr. Ackert listened and advised and was very attentive to what I had to say. I have to mention the support staff as well - the nurse or PA who took my stats and blood was wonderful and very gentle. And by the time I dressed and came out of the exam room, all the necessary paperwork, referrals, etc. had already been completed and put together for me! I was out in no time, with everything I needed and with my next appointment scheduled. Overall a very pleasant experience.
I was seen really quickly, actually I didn't even get a chance to get my insurance card back from being photocopied before I was called. The Dr. was very friendly, made me feel comfortable, and listened.
Liked that he made me feel comfortable, also like that he is checking everything before making any decisions on what I should do next, not all doctors are like that. I did not feel rushed, and felt like I was being heard. Really enjoyed my Visit.
Great doctor in every way.
Very thorough, professional, and kind. Highly recommended.
THE best doctor's experience I've had in 6 years in NYC.
He was quite thorough and made sure to explain everything slowly even though there wa a lot of information.
Physician was very thorough. Highly recommended.