excellent physicianhave been seeing him for many years

   — Lauren

Dr. Koo always take his time in our appointments and clearly explains in detail what he feels is the best course of action for whatever the issue is at hand. He is friendly, extremely knowledgeable and patient and I would highly recommend!

   — Robin Katz

Even though this was my first visit with Dr. koo, he understood my need very quickly & kindly solved the solution. I was very happy to received his kind service.

   — Hiromi Kagitani

have been seeing dr koo for many years. outstanding and caring physician. I routinely recommend him to all my friends who need a GI doctor

   — May

Dr. Koo is very thorough. He asks a lot of questions to make sure he understands your health issue and is willing to work with you to satisfy your needs. I would highly recommend Dr. Koo to anybody in need of a gastroenterologist.

   — Carol Kunzig

They got 5 stars for doing their job. I was pre-screened by 3 minute phone call at home the day before. I was taken on time. My doctor remembered my case, answered all of my questions and the scheduling of the next appointment went very efficiently. This is what I want and don't always get.

   — William Daub

I have been seeing Dr. Koo for several years now as my gastroenterologist. He is always patient, thorough and extremely knowledgeable. I trust his guidance and we always come up with a logical and effective game plan regarding any of my health issues!

   — RK

I have consistent great experiences w Dr Koo. He has taken care of my routine needs (colonoscopies etc) - and more recently helped w an acute problem. Always very caring and provides fantastic care

   — Miller

Informative, thorough, proactive. Excellent overall. Highly recommended.

   — Tetsu Funabashi

Dr. Koo is kind, patient, understanding and phenomenal in his profession. His staff are wonderful and there is rarely a time that you have to wait!! I would recommend Dr. Koo to everyone I know!!

   — Kim Iacovino

have been seeing him for my care for >9y. Always outstanding. Very caring and compassionate

   — Jane

really fantastic doctor.

   — Sue

our whole family sees dr koo from my grandparents to my daughter. We would never trust our health with anyone else - he is such a phenomenal doctor.

   — Ginny

Has been my doctor for many years. See him for my routine screenings but also for my chronic problems. Very intelligent and kind. Consistently great experience.

   — Robert

has been my doctor for years. always a great experience. has a very calming quality; very caring and thoughtful. always punctual.

   — Niki (Mahwah)

Dr Koo listened to my GI complains then address each circumstances precisely in a way that I felt comforted and fine. I was very happy that I had this meeting with Dr. Koo.

   — Freddie

had my colonoscopy with dr koo; very professional, very skilled. would see him again for any future GI problems

   — Mary (Lodi)

saw dr koo on recommendation from a friend - really great experience. He was very kind. Definitely knows what he is doing. Am a pt for life.

   — Jenny (Closter)

have been dr koo's pt for years - he is very thoughtful and caring. Very skilled. Would recommend him highly

   — Elise (Closter)

great doc; very insightful and thoughtful

   — Ron

great visit - has been my doctor for years; highly recommend

   — Jenny

have known dr koo for a long time; he is an outstanding physician. very caring and knowledgeable.

   — Mark (Paramus)

He has guided me through some difficult times. He is very caring and attentive, Would highly recommend.

   — Jean

I love Dr. Koo. He is personable, professional and always friendly. I never feel rushed in my appointments and he always listens to my concerns. One of the things Dr. Koo does which I never seen any Dr. do is he, himself, comes to waiting room to call me in for my appointment. Its the little things as they always say.

   — Jean

I go to the Paramus office. They are very organized and not a long waiting time. Dr Koo is thorough and explains medical issues so I understand. I just had tests done and he calls the same day as they go on the portal to discuss. I definitely have and would recommend Dr Koo.

   — BarbTF

I ave seen Dr. Koo is previous years and decided to seek his medical care again.

   — Kate Blackwood

Dr. Koo has been my gastroenterologist for the past five years. I give him high grades for his communication skills during office visits and for his medical skills when performing procedures. In the office, he carries on a genuine dialogue with a patient. He answers all my questions in detail. In the surgery center, he keeps you informed and reassured throughout the process.

   — Robert Mann

Trustworthy, caring and easy to talk with. Spent enough time and answered all questions thoroughly. On time for appointments. Left procedure at ease and feeling that I was treated properly.

   — Jeff

Dr. Koo was very through. He visited me before the procedure which made me feel at ease. He called me to follow up and took his time to discuss my case with me. Very friendly and professional. I was very pleased at the care he gave as well as his staff.

   — EGreen

Dr Koo is an outstanding physician. He takes you through all the diagnostic possibilities and help you weigh the different possibilities. He also seemed genuinely caring. He was also very prompt; i have seen him about 4 times in the last year and I have never waited more than 5 minutes of my scheduled time.

   — Jen

* Please note this list does not include reviews written by anonymous users