Gastroenterology, weight + lifestyle management


From New York to California


I have been going to Dr. Ko for over 8 years. After moving to New York City 6 years ago, you would think I’d find a great replacement but NO! Dr.Ko is the best, I come back every 6 months to see him. I have had stomach issues since I was 8 years old and seen tons of doctors, but he has been the only doctor to make me feel better. Highly recommend!
— tm

I have had endoscopies and a colonoscopy with Dr. Ko for quite some time now. He is professional and friendly. He explained all aspects of my results. The staff is also very friendly and accommodating. I would highly recommend Dr. Ko to my friends and family.
— TK

Dr Ko has been great for me, I’m so glad he was recommended by my doctor. Under his care I finally won a 30 year battle with a chronic disease and he is always way ahead of me looking out for any remaining issues. Everyone in the office is terrific.
— RM

My husband and I both had our colonoscopy done by Dr. Ko and we have nothing but praises for him and his staff. Dr. Andrew Ko is an excellent Gastroenterologist. He is very calm, thorough and explains each procedure and answered all our concerns. His staff Bonnie is also very polite and helpful. Dr. Ko is the best!
— JG

Great doctor. Found him out of blue on a search on my insurance website, looking for a gastroenterologist. But glad I did. The office staff are very thorough and understanding. They also gave me great advice on a better insurance plan for 2018.
— DH

Dr. Ko is an excellent GI specialist! Years of experience and very understanding of his patients. Hears you out and take good notes of what you share. On top of that his staffs are great!! Very polite and helpful. I highly recommend!!!
— FS

Nothing is more important than our health, and finding the right medical practitioner is a crucial first step for most of us. We all have different experiences, so all I can do is relate my own personal experiences with Dr. Ko. He has been seeing me for a couple of years, and just last week he performed an upper endoscopy. But before I even get to that, let me express my appreciation for a doctor who is obviously very skilled, but is also a caring individual who puts his patients first. Dr. Ko always takes the time to explain what’s going on, clearly lays out my options, and he never rushes me out of the office. I never leave with unanswered questions, which, sadly, I can’t say about all providers. In addition, he has a friendly and knowledgeable staff, led by Bonnie. In terms of my upper endoscopy, it couldn’t have gone better. Dr. Ko works with a highly skilled anesthesiologist and a terrific team. He performed the procedure, made sure I was okay afterward, and left me with a clear and concise hand-out of what he had done, what he found, how we would follow up, etc. I obviously can’t guarantee that everyone will have the same experience I did, but for what it’s worth, I wouldn’t hesitate to recommend Dr. Ko, as I already have to family and friends!
— JJ