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Qualifications and Experience
Awards and Publications
Dr. Markos I. Koutsos received Fellowship training in Gastroenterology and Liver Disease at New York Presbyterian-Cornell Medical Center were he graduated in 1996. After fellowship he spent few months at the Royal Liverpool University Hospital in England were he was further trained in advanced endoscopic procedures along with laser treatments and stent placements. Currently Dr. Koutsos is on staff at N.Y.Methodist Hospital and practice in Bayridge, Brooklyn and Manhattan. His expertise includes Esophageal Dilations, Botulinum Toxin Injections, Infrared Coagulation of Hemorrhoids, Small Intestinal Endoscopy, ERCP with sphincterotomy, and stone retrieval, and Chronic Liver Disease including recent combination interferon-ribavarin treatment for Chronic Hepatitis. Dr. Koutsos performs extensive research at Cornell University Medical Center and the Rockefeller University, on Colorectal Cancer Prevention and the mechanisms by which different Non Steroidal Anti Inflammatory Drugs reduce the incidence of Colon Cancer. Presently Dr. Koutsos involved in a large scale study on the subject at Rockefeller University Hospital. He published numerous articles and conducted many lectures on Colon Cancer prevention at international meetings.
Verified Patient Reviews
Dr. Koutsos is a caring and sympathetic doctor.
Well run office. Pleasant manner which was appreciated during an uncomfortable physical situation
Dr. Koutsos is a very nice man, but an even better Doc. Cannot recommend him highly enough.
Wonderful doctor, smart and skilled. Great with patients too.
Smart, compassionate and thorough. Takes his time to answer all questions and concerns.
The doctor was extremely friendly, and he put me at ease as a patient!
The doctor was very thorough and helpful.
I must have been one of the later appointments in the day. The doctor came in after moving his car and treated me in street clothes. The entire consultation felt quite rushed and it was clear he and the office staff were eager to leave.
He's a wonderful doctor with a fantastic beside manner would very highly recommend the office and I have
Very nice Dr. puts you at ease and has a great bedside manner. He took the time to explain the procedure I needed in full and it was very easy to understand.
Kind, welcoming, and informative staff. Dr. Koutsos made me feel comfortable and relaxed almost instantly; he has a very easygoing manner about him but is highly professional and takes the time to listen to patient concerns.
I feel Like Dr. Koutsos really cares and knows what he is doing. i saw another doctor last year that ran some tests and didnt find anything so he just dismissed me. I feel like Dr. K really wants to get to the root of the problem and his staff is really nice too.it is so hard to find a good doctor with good staff members that care these days.
Doctor was knowledgeable, professional and patient with my many questions. Made me feel comfortable and safe. What else can you ask for?
You can't do any better.
Dr Markos Koutsos is very knowledgeable in his field and a professional. He is kind and empathetic to me where my health is concerned. Great doctor!
Dr. saw me promptly upon my arrival at office. He examined my medical concern, prescribed a treatment regimen, and suggested a follow visit for further treatment upon my return to the country. Very satisfied with visit.
Nobody is more proffesional than DR Koutsos
Very pleased with the outcome of my visit. The staff and the doctor were both very nice.
Explained things very well and he scheduled all my follow-up appointments promptly
Always listens and always instills confidence.
Excellent, knowledgeable doctor. Great listener.
Nice staff. Comfortable wait area. Good visit all around
This is a very professional yet nice and pleasant to deal with. We would definitely recommend him. Spoke with patients who have been seeing him for years and they would NOT see another doctor. Very nice and accommodating staff.
He is a very caring, knowledgeable doctor.
Dr. Koutsos is a great Doc. I can't stress enough what a fine job that he does.
Dr Koutsos is a great doctor great listener and very good doctor always knows how to treat me and get better fast! Cindy M
Dr. Markos Koutsos was a dream to see today. The wait was rather long but when I finally saw the doctor I was out of the door in 15 minutes. I would highly recommend Dr. Koutsos to everyone!
Great doc, caring and a good listener. Never tries to rush a patient through an assembly line.
It was okay. The front desk people constantly told to hold on and cut me off mid sentence. They don't do blood work in their office, which I found shocking, and wanted me to walk to a Quest Diagnostic to take blood work. The Quest Lab was filthy and I just left. Dr seemed kind, overall experience could've been way better. Dont think i'll stay with this office.
A really good doctor. Takes time to listen to his patients. Very thorough.
Dr Koutsos is undeniably a wonderful Doctor, taking the time to reassure and ensure the next steps are straightforward and efficient. With a perfect bedside manner, you are at complete ease. Highly recommend.
I was very satisfied
He is caring, gentle and thorough. I most highly recommend!
Great doctor. He take his time to explain things.
Mark is a very unique. A great Doc, and an even better person. If one needs to see a top Gastro, Mark is your man. I guarantee it.
Strictly professional and speaks directly to the poit
Very professional and knowledgeable. He took the time to answer all of my questions and was not rushed in any way. Nice office staff that assisted.
The overall experience was positive. Dr. Koutsos is very kind and a good listener. The office, however, was overcrowded (there are quite a few other doctors in the same space) and the flickering lights were not great on the eyes.
Got a good vibe from him. Will see him again.
First and foremost I would like to thank ZocDoc for helping me find this amazing doctor! Dr Markos Koutsos is very professional and sweet. He is friendly, down to earth and treated me as if I were a long time patient. His diagnosis was accurate for the symptoms I have and the medication he prescribed me is helping me feel better, day by day. I am nothing but thankful to him and I am now going to make Dr Koutsos my primary care doctor. Thanks again ZocDoc! :)
Excellent visit... wonderful Dr., with a great personality and makes you feel very comfortable.
Not only a great technical Doctor, but one of the nicest people you're likely to come across. I cannot recommend Dr Koutsos any stronger.
Genuinely cared about what I had to say, addressed my concerns, and immediately scheduled tests to figure out what is wrong. Very comforting.
He was a great doctor easy to understand would highly recommend him.
A great doctor!
I felt that Dr Koutsos was genuinely interested in my symptoms and asked questions to gain a better understanding of my experience and was detailed in next steps unlike other doctors who seem disinterested and rush you out of the office, I am looking forward to continuing to with with Dr Koutsos.
Very friendly, professional and easy going.
Dr. Koutsos is a very caring professional. He makes every effort to make you well.
It was great. It was my first time there and saw me for a general sickness issue but for future reference, is is focusing on gastro and liver issues. His wife is also a general practitioner and I will be seeing her for my future General pcp visits
Very professional and good Doctor
As always, caring and compassionate, and finding answers.
Great office. Great doctor. Very short wait to see the doctor. It couldn't have went any smoother. Thank you.
Dr. Koutsos is a very professional and friendly physician. I would highly recommend him. He will make you well again.
Great experience. Took me on time & right away. Dr. was professional, kind & easy to talk to. Got my first B12 shot. He is sending me to Quest for all routine bloodwork etc. so after results we'll make a plan. I felt cared for ..which is how its supposed to be. He said he would fix me up.. So far, so good!
From his secretary to the DR EXCELLENT
Dr. Koutsos is a very caring professional that will take the time to listen to your issues and do everything he can to make you better again. He has taken care of my entire family for years.
I always find Dr. Koutsos and his staff to be friendly, mannerly and proficient. No matter how I feel when I enter the office the warm greetings and the care given always cheer me up. Great doctor, great personality.
My husband and I have both been using Dr. Koutsos for several years. He has always been very thorough both with his care and his explanations. He is very professional but also very pleasant. He does not make you feel rushed but instead takes the time to answer all questions. He takes his appointments promptly (we were a little early and he took us prior to the scheduled appointment time)j. We highly recommend Dr. Koutsos.
He has a great bed side manner and always knows what is wrong and treats it correctly I would highly recommend Dr Koutsos
He's amazing and kind. Cares about the patient and not about how much money he can get from your insurance.
Very knowledgeable and co operative
MY HUSBAND & I FELT WE DID NOT FEEL SATISFIED WITH THE VISIT. HE WAS NOT THE DR. WE WERE LOOKING FOR AND HE NOT RECOMMEND A PHYSICIAN WE CAN GO TOO. LAST BUT NOT LEAST ON THE WEB IT SHOULD INDICATE THAT DR MAROS KOUTSOS IS NOT TAKING ANY NEW PATIENT FOR PRIMARY CARE
Highly recommend him. We found our new doctor
Professional, thorough with blood work, helped me greatly with stomach issues.
Very informative and helpful! I was feeling very sick and not making sense with a sinus infection, and he was very helpful.
Dr.Koutsos, provided detailed information leaving me feeling well informed and reassured. He's a doctor in the true sense of the word treating his patients organically.
It was a great visit
My visit with Dr.Markos was great ! He is very professional and really takes care of his patients. The Medical Assistant was great also she was very polite and sweet .I recomend you to go visit this Dr.he is amazing !
Nice attention and he is a real professional.
Wish there was more of a caring factor during my visits. I have been to the office a couple times and I've been thrown referrals or "come see me in two weeks" with no soild answers or real solutions. Just possibilties while my insurance is billed and co- pays are being paid. Definitely left feeling like I'm part of his means of income and nothing more.
I like Dr. Koutsos very much--he did my colonoscopy 3 years ago and will do my next one. Very easy to talk to, attentive, professional yet friendly. Highly recommend.
The waiting was short and the mannerism of all was the greatest.
Dr. Koutsos was welcoming and friendly. He was very patient with me and listened intently. I definitely will be returning to his practice.
My visit gave me great insight on my diagnosis and proposed treatment. The full cost of my treatment was broken down for me which gave me the insight that I needed for going forward. Dr. K is a gentleman whose mannerism gives credit to his profession. VB
Everything went perfect! A+
I went to this doctor for stomach discomfort that I had for weeks. As another reviewer said he did not take my blood pressure, weight, etc. He seemed to listen to my complaint but didn't ask many questions. He did a palpable examine and suggested I let him do an endoscopy. I did not. I was not in pain nor throwing up, no fever. Couldn't justify this invasive test. The medication he prescribed for me did very little to help my condition and I ultimately had to go see another doctor. I'm much better now.
Save my life by telling me to go back to the hospital. Turned out my appendix had ruptured.
Very pleased with both the doctor and the receptionist. Very friendly!!
Best doctor I've had in New York city. Was very intelligent and quick with answers to my ailments.
Made an appointment for my son with the intent of establishing a new patient/doctor relationship that my family could use. Koutsos was advertised as a general practioner. As the parent, I gave him a medical history of my son and when I asked if he would take height and weight and give a physical which was the full intent of this checkup, his response was you were here to discuss tonsils and you did not say you wanted a physical for your son. The message was clear: do not give a medical history and just get the physical performed. How ridculous. Unprofessional, arrogant, ignorant and rude. Save you insurance and time. Gwen A.
Dr. Koutsos is very thorough. He scheduled a procedure for me within 6 days of my initial visit. He listened to my concerns and made me feel at ease.
Dr. Koutsos makes every patient feel like he or she is the most important patient he has. He listens, he solves.
The doctor appeared to me to be a pushing for invasive procedures that were not necessary. Overall the doctor was alright, just didn't take his advice.
Very understanding and easy. To talk to
Never had a more helpful doctor in my life, he scheduled me a procedure less than a week away from the day I saw him (typical wait times can be up to two months). I left smiling and full of hope instead of the usual annoyance and feeling of robbery after co-pay I feel after most specialist appointments.
Very pleasant. Friendly office. Convenient location. Should advertise the cash/ check only for copayments.
Office visit was short- no weight, height, blood pressure, etc taken. But he was very thorough in his lab test recommendations, and is easy to keep in touch with through email.
He is kind and understanding..
very personable & helpful!
Dr. Koutsos was very caring and attentive.
As soon as I walked in I was greeted with a warm welcome. The receptionist was very helpful to me when she tried to ensure that my medical insurance would cover the visit. Dr. Koutsos was very kind, professional and down to earth. I will definitely go again.
very friendly and saw me within 5 minutes of my scheduled appointment
Excellent doctor, very nice person. I recommend for anyone.
Very professional, helpful and courteous, liked him a lot.
Personable, knowledgeable and kind. I have referred my family, friends and patients to him!
Very professional. Listened patiently. Did not rush. Took time to answer all my inquiries
He was really nice and made me feel at ease and comfortable talking to me and explaining certain procedures in detail. This was my first visit with him and I would recommend him.
The doctor and the staff there are the NICEST MOST CARING FUNNIEST PEOPLE AROUND. Put your health into their hands it is the best thing you can do.
So happy to have found a great doctor i have been looking for one for a while. He is caring, takes his time to explain things to you, makes you feel comfortable and secure. I would highly recommend him to anyone. My husband is a real critic and he is extremely happy with Dr. Koutsos as well.
Great lady at the front desk, very polite. Dr. Koutsos made me feel very comfortable. He is extremely nice and easy to talk to. My husband and I both use him as our primary now.
The perfect doctor
This is a smart, caring doctor. He was superb & extremely helpful with my 87 year old mom. Also outstanding if you need a colonoscopy.
Could not have more confidence in a doctor.
Extremely pleasant physician answered my questions, put me at ease. Would definitely recommend.
He was a great, personable doctor.
He was extremely nice and got to the bottom of my problem.
Doctor Koutsos was very easy to talk to and seemed knowledgable about the topics that came up during my appointment. The waiting room was very clean, and I waited a very short time. Highly recommend this doctor.
Dr Kutsos took the time to explain things to me, answer my question and ensured I understood the treatment plan.
Doctor Koutsos listens first, ingests the information then puts his medical knowledge into action to reach diagnosis. All while maintaining a pleasant and personable, yet confident, manner.
A very well mannered, serene and humble doctor. Did I mention good sense of humor? Overall a great experience!
He's very caring, professional, and knowledgeable.
Always takes however much time is needed to address my concerns.
I love Dr. Koutsos. I have not found a PCP I liked since moving to NYC 4 years ago, and now I finally have. He is patient, thoughtful, and I never feel like he is rushing me out the door. He takes my concerns seriously, and he seems to genuinely care about my well-being. His secretary is great as well. I definitely recommend him and his office on 86th.
If you need to read reviews, know that you cannot find a better, more caring doc.
He was so kind and caring. I felt I was in very good hands. He currently does not take bank cards at his Manhattan office, so be sure to bring cash just in case.
I feel confidant in his abilities.
Good first visit. I have scheduled a procedure with him the following week so Ill know more in the near future.
Such a great doctor! Gets to the point and is very caring. Always took the necessary steps to making the patient feel comfortable and learn. I would definitely recommend him to all family and friends.
No one at the reception when I first arrived.. Dr. Koutsos had to administer paperwork and whatnot. Generally a little disorganized, and no real follow-up or show of concern.
Dr. Koutsos is very intelligent and a very good doctor. He's supportive and kind; he always comes up with a solid approach no matter what medical problems I present. I would recommend him to anyone, but especially those with digestive issues.
Dr. Markos Koutsos, is very pleasant and very professional, he took the time to listen to everything I had to say and his responses were very knowledgeable, the description were clearly and thoroughly. I didn't feel rushed. His office made me feel welcome.
Very professional and seem to care by talking with me.. Didn't feel rushed. He made me feel welcome..
Very professional and will answer all your questions.
Very friendly and approachable.
Dr Koutsos was very friendly and understanding. He listened patiently and described things very clearly and thoroughly. He has a very cordial manner to him and I would definitely recommend him to others.
He makes you feel comfortable during the visit which is very important.
Great bedside manner. Easy to discuss issues with
The wait time was a little less than an hour, but once I got to see Dr. Koutsos, he was very friendly, professional, and he listened to everything I had to say and answered all my questions thoroughly. Once it was my turn, I was in and out in ten minutes. I highly recommend Dr. Koutsos.
Dr. Koutsos is an excellent doctor. He makes me feel comfortable in all of my appointments. I can discuss my illness with him with no problems.
I have been looking for a PCP for a long time and finally found one i like.
Very friendly, responsive, and prompt. He's no nonsense while simultaneously taking the time to listen to your concerns.
Great Doctor. Very knowledgeable and patient. Patiently answered all my questions (and I had a lot) in details.
Nice, friendly doctor. I felt very comfortable.
Had a great experience with this doc... Great bedside manners
I didn't feel rushed. I felt like he took his time and listened to all my concerns! Very satisfied.
I would definately recoommend Dr. Koutsos to my family and friends!!
Knowledgable & professional, we have a new family doctor!
Excellent , very thorough and co-operative doctor. I would highly recommend to friends.
Wait time was attributed to two emergencies.
Attentive, listens to your concerns
Dr. Koutsos was thorough, pleasant, made me feel comfortable from the first moment.
He's an amazing doctor, he answered all of my questions and explained everything in detail. My procedure was quick and easy, also his staff was very nice.
A caring, concerned doctor who takes the time to listen. Highly recomnended!
highly satisfied, he is friendly and professional
He was very helpful with the questions asked to him and was very concerned with conditions.