“Dr. Quanoo is an exceptional gastroenterologist who brings both expertise and compassion to every interaction. From my very first visit, Dr. Quanoo took the time to listen carefully, explain my condition in clear terms, and walk me through every step of the diagnosis and treatment process. I felt informed, respected, and genuinely cared for. The office is well-organized, the staff is friendly and professional, and appointments are efficiently managed. It’s rare to find a physician so dedicated to both clinical excellence and patient well-being. I highly recommend Dr. Quanoo to anyone seeking top-tier gastrointestinal care—she truly goes above and beyond.
”
Hazel-ann L.June 21, 2025
Highly recommended
97% of patients gave this doctor 5 stars
Excellent wait time
91% of patients waited less than 30 minutes
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Available appointments
Gastroenterology Associates of Brooklyn
9921 4th Ave, Brooklyn, NY 11209
Today, Apr 2 – Wed, Apr 15
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What patients are saying
Overall rating
4.95
Average wait time
4.53
Bedside manner
4.95
“Dr. Quanoo is an exceptional gastroenterologist who brings both expertise and compassion to every interaction. From my very first visit, Dr. Quanoo took the time to listen carefully, explain my condition in clear terms, and walk me through every step of the diagnosis and treatment process. I felt informed, respected, and genuinely cared for. The office is well-organized, the staff is friendly and professional, and appointments are efficiently managed. It’s rare to find a physician so dedicated to both clinical excellence and patient well-being. I highly recommend Dr. Quanoo to anyone seeking top-tier gastrointestinal care—she truly goes above and beyond.
”
Hazel-ann L.June 21, 2025
“Beautiful office, nice staff, medical provider was very nice, very knowledge, patient with my condition and questions. ”
Myria M.October 24, 2024
About Dr. Cynthia Quainoo
Dr. Cynthia Quainoo, M.D is a Newark, New Jersey native, born to immigrant parents from Ghana, West Africa. After graduating from Smith College, she earned her medical degree from Boston University School of Medicine and completed her Internal Medicine Residency training and sub-specialty training in Transplant Hepatology at Rutgers- New Jersey School of Medicine. She concluded fellowship training in Gastroenterology at SUNY Downstate in Brooklyn, New York; she now calls Brooklyn her home.
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Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Gastroenterology (American Board of Internal Medicine)
Education and training
Medical School - Boston University, Doctor of Medicine
State University of New York, Downstate Medical Center, Fellowship in Gastroenterology
Rutgers, The State University of New Jersey, Residency in Internal Medicine
Rutgers, The State University of New Jersey (Transplant Hepatology)
Saint Vincent Hospital (Internal Medicine)
Professional memberships
New York Society for Gastroenterology and Endoscopy
American College of Gastroenterology
American Association for the Study of Liver Diseases
Awards and publications
Castle Connolly Top Doctor
Dr. Cynthia Quainoo is a Recipient of Castle Connelly Top Docs Award.
Dr. Cynthia Quainoo has been Featured on The Breakfast Club Power 105.1
Dr. Cynthia Quainoo has been Featured on FOX 5 with Antwan Lewis
Languages spoken
English
Provider's gender
Female
NPI number
1497916837
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.95
Wait time
4.53
Bedside manner
4.95
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203 reviews
Most relevant
Beautiful office, nice staff, medical provider was very nice, very knowledge, patient with my condition and questions.
October 24, 2024Myria M.Verified patient
My first visit was great so far. Dr. was amazing, I really liked her and the staff. Office and building look brand new.
April 1, 2024Jacqueline F.Verified patient
Staff was friendly. Office clean and comfortable. Doctor asked good questions and had a plan of action right away.
More than 1 year agoInitials hidden
Nice staff, good doctor. She listened to all my concerns and questions. I feel much better about the procedure.
May 21, 2024Ronay M.Verified patient
Visit went well . The office was clean and staffs were friendly. The doctor was awesome very easy to talk to .
May 21, 2024Naressa B.Verified patient
Dr. Quainoo was attentive and thorough. I would not hesitate to go back if need be and would recommend her to anyone I know.
August 25, 2021Philippe C.Verified patient
Very personable staff is amazing love her bed side manner excellent professional practicing doctor will recommend to anyone
November 8, 2020Kerry-ann L.Verified patient
I wish she was my family doctor! So reassuring that there are people like her in the medical field. Can’t recommend enough.
More than 1 year agoInitials hidden
The doctor was lovely and covered all of my concerns. Waited quite awhile but that’s to be expected with Doctors visits.
More than 1 year agoInitials hidden
Dr Cynthia Quainoo is very friendly, clear and nice. Yes, I will definitely keep up with her.
February 15, 2024Ahsia D.Verified patient
Dr Quainoo was patient and sympathetic. She listened and made me feel like a valued human
February 22, 2024Fatimah W.Verified patient
Knowledgeable, great communicator, very accommodating, looks out for the best interest of the client.
More than 1 year agoInitials hidden
Dr. Quainoo was lovely! She was very attentive, gave me detailed information and options for treatment.
August 13, 2020Ariel H.Verified patient
Communication and compassion relieves any insecurities. You'll get both here.
October 18, 2024Nelson C.Verified patient
Dr Quainoo is very kind and approachable and was very accommodating to my particular issues.
January 25, 2021Ryan O.Verified patient
Dr. Quainoo was great. Extremely attentive, kind and overall provided a great experience.
September 30, 2021Aurelie L.Verified patient
Extremely knowledgeable and personable. Made me feel comfortable.
January 27, 2024Heather M.Verified patient
Great very friendly but also extremely informative in an easy to understand way
February 11, 2020John M.Verified patient
Beautiful establishment, doctor made me feel as if i were a patient for years
January 23, 2021Tafari F.Verified patient
The Doctor was amazing very insightful and knowledgeable. Great physician!
January 27, 2021Shante C.Verified patient
The physician is well known to me so it was a pleasure seeing her again.
January 27, 2021Rachael F.Verified patient
Personable, professional, and listened to me. Great first appointment
September 17, 2020Initials hidden
It was very quick, professional and I barely had to lift a finger.
January 11, 2021Ashtyn D.Verified patient
Overall the experience was very good
Would recommend to anyone
September 2, 2021Rosemary S.Verified patient
Very passionate about her work. She takes the time to listen.
More than 1 year agoKeisha M.Verified patient
SHE IS ABSOLUTELY WONDERFUL. ABSOLUTELY. WONDER. FULLLLL!
March 28, 2020Tochi M.Verified patient
Dr. Quanoo is an exceptional gastroenterologist who brings both expertise and compassion to every interaction. From my very first visit, Dr. Quanoo took the time to listen carefully, explain my condition in clear terms, and walk me through every step of the diagnosis and treatment process. I felt informed, respected, and genuinely cared for. The office is well-organized, the staff is friendly and professional, and appointments are efficiently managed. It’s rare to find a physician so dedicated to both clinical excellence and patient well-being. I highly recommend Dr. Quanoo to anyone seeking top-tier gastrointestinal care—she truly goes above and beyond.
June 21, 2025Hazel-ann L.Verified patient
10/10 recommend, Dr. Quainoo was knowledgeable, efficient, comforting and funny. No complaints whatsoever, I am even looking forward to my follow up visit!
October 22, 2024Gbemisola S.Verified patient
Overall, the appointment was fine. I’m someone who takes strong interest in my health and so I think that they weren’t prepared to explain to me what was going on step-by-step. People were coming in and just talking at me instead of introducing themselves or letting me know what they would be doing.
The doctor was nice enough, and the additional staff supported me when I explicitly asked for clarification. ?
October 17, 2024Sydney F.Verified patient
A great doctor that listens is so hard to find, but she really took her time and gave me samples as well as a plan to figure out how I can feel better.
October 3, 2024Initials hidden
Thorough, kind, truly listens, knowledgeable
July 23, 2024Raizy K.Verified patient
Great doctors and staff.
July 22, 2024Terry S.Verified patient
The visit with Dr. Quainoo confirmed all of the five star ratings I read before booking the appoi tment. It was a really busy time in the office when I arrived but my consultation with her did not feel rushed. Dr. Quainoo7 immediately put me at ease which made me comfortable during the visit from start to finish. She listened to me and proposed an action plan based on our conversation and the medical documentation I provided. I left feeling confident in her recommendations for moving forward with identifying the root cause of my issue.
More than 1 year agoInitials hidden
My experience was great. The provider was very thorough and asked all the right questions. As a black women, it’s hard to find providers who ask the right questions and look further into your concerns. This provider did just that. The office was nice, clean and lux. No wait time. Thank you.
March 2, 2024Initials hidden
I went to Dr. Quainoo because the previous doctor I had gone to didn't really listen to my symptoms. He kept saying all is well. Dr. Quainoo took the time to listen and suggested some tests and explained some of the reasons I could be having the symptoms I was experiencing. I will give an update on my follow-up appointment. I do recommend her.
More than 1 year agoInitials hidden
I’m extremely happy I found Dr. Quainoo. She is very personable, professional & kind. The front desk was rude & unprofessional, however after seeing Dr. Quainoo, that frustration I felt from the front desk, disappeared. Upon walking into the office this morning, I waited a second once I got to the front desk & they just looked at me & I just looked at them & than I said “GOOD MORNING” & they said “good morning”. Smh a greeting is the bare minimum. In any other situation, I would NEVER return to office after that kind of encounter, however I really liked Dr. Quainoo & she changed my feelings once I was seen. I give her a A++++ & the front desk a F.
More than 1 year agoFelicia I.Verified patient
Cynthia is amazing and a great listener
January 16, 2024Raquel J.Verified patient
The location was far from me, but it was great to come in and be greeted by smiling faces to have my name called correctly and to be offered water and to feel safe in space. Cleanliness was optimal at this location everywhere it was clean, and there was still the Covid barrier up, which is great for me because I have an illness and there were still Seating so people know to set up from each other. That made me feel safe as well.
December 20, 2023Tanzania H.Verified patient
Amazing and great service
December 19, 2023Sonny T.Verified patient
amazing doctor. very patient and kind to my mom who had a lot of questions and she took the time to answer all of them. highly recommend!
April 26, 2022Yara E.Verified patient
My experience with Dr. Quainoo was active, entertaining, and personable. She is very down to earth, humorous, a great listener, patient, knowledgeable and very understanding. She evaluated all of my concerns expressed and provided me with the necessary feedback to move forward in my next steps.
March 4, 2022Michael J.Verified patient
Such a great experience. I seem to catch an appointment that someone probably had just canceled. I was seen immediately after registering. Dr Quainoo was amazing and listened to all my concerns in detail. I came down with a travel bug and was in so much pain. It was a Sunday and I needed a specific med which she called around making sure that I received it. She knew just the right medicine to prescribe and boom the next day I was good as new! I really can't thank her and the office staff enough. Will be looking to make her my regular Gastro if I ever have any other issues!
February 19, 2022Todtiyana B.Verified patient
Greatest experience ever, she really took her time to listen to me and understand my issues, answered all of my questions and is very compassionate about her work, I will definitely refer her to my friends
October 6, 2021Initials hidden
Dr Quainoo was so great. Super sharp & really sat down with me and listened to all of my symptoms. Then methodically went through each thing to figure out what tests were appropriate. It was worth coming all the way from the city to see her.
September 23, 2021Brandon F.Verified patient
Dr. Quainoo and the staff were great. The only minor negative is that I was the first appointment of the day and was requested to arrive 15 minutes early; which I did. However, the office was not open. The doctor and staff arrived about 5 minutes late and took me in pretty quickly. Regardless I recommend them highly.
September 22, 2021Mandy W.Verified patient
Cynthia is amazing. Very good experience. She was patient with me and explain everything clearly. She’s very smart & educated. I would recommend her to my friends & family.
September 1, 2021Aliccia M.Verified patient
very nice dr..GREAT! bed side manner.
September 1, 2021Nicole K.Verified patient
Very nice customer service
August 31, 2021Purisima A.Verified patient
She was very knowledgeable and helpful
August 31, 2021Delores W.Verified patient
Very pleasant visit. The staff was very friendly and the doctor was very through, great bedside manner; she asked all the right questions and showed genuine concern. By the end of the visit she ordered a full panel of test. I gave 4-stars because this was my initial visit (consultation). All and all I would recommend you make an appointment.
August 25, 2021Christine B.Verified patient
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Frequently asked questions
How soon can I make an appointment with Dr. Cynthia Quainoo?
Generally, Dr. Cynthia Quainoo has appointments available on Zocdoc within 1 week. You can see Dr. Quainoo's earliest availability on Zocdoc and make an appointment online.
Dr. Cynthia Quainoo has 2 office locations in Brooklyn, view full addresses on Dr. Quainoo's profile.
Which board certifications does Dr. Cynthia Quainoo have?
Dr. Cynthia Quainoo is certified by Gastroenterology (American Board of Internal Medicine).
What are common reasons for patients to see Dr. Cynthia Quainoo?
Dr. Cynthia Quainoo frequently sees patients for Colonoscopy, Gastroenterology Consultation, Hemorrhoids, Illness, and Weight Loss Consultation. You can see other visit reasons for Dr. Cynthia Quainoo on their profile.
How do patients rate Dr. Cynthia Quainoo in reviews?
203 patients have reviewed Dr. Cynthia Quainoo. The overall rating for this doctor is 4.95/5. They have a 4.95/5 rating for bedside manner and a 4.53/5 rating for wait time. You can read individual reviews and ratings on their profile.