I have been a patient of Dr. Han Jong Koh for many years, and he knows me very well. I am a worrier, and I very much appreciate his calm and reassuring presence whether it is in his office or on the phone. I am always comforted in the knowledge that Dr. Koh will always do what is just right for my situation.
Han-Jong (John) Koh, MD
Leesburg, VA 20176 Get Directions

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My Philosophy and Approach to Wellness...
Dr. Koh's Credentials
Dartmouth-Hitchcock Medical Center
Lebanon, NH
Internal Medicine 1991-1993
Chief Medical Resident 1993-1994
Veteran’s Administration Medical Center
White River Junction, VT
Chief Medical Resident 1993-1994
Dartmouth-Hitchcock Medical Center
Lebanon, NH
Internal Medicine 1990-1991
Medical College of Wisconsin
Milwaukee, WI
Doctorate of Medicine 1990
Massachusetts Institute of Technology
Cambridge, MA
Bachelor of Science, Chemical Engineering 1985
Top Doctor since 2006
Testimonials from patients of Dr. Koh
For several years, I suffered from terrible fatigue, flu-like sickness, swollen joints and glands. I was diagnosed with Rheumatoid Arthritis, Thyroiditis, Chronic Fatigue Syndrome and other such diseases. I had been to three doctors during this time, and while I was prescribed many drugs, nothing helped.
After two years of feeling like I had the flu everyday, I began to suffer with… See more
We moved to Leesburg twenty years ago and Dr. Koh has been our Internist, or as my husband calls him, our Quarterback. Through the years and various health challenges including Alzheimer's diagnosis, Dr. Koh has been there for us, overseeing our visits to different specialties and prescribing and adjusting our medications as needed. As seniors, his calming and caring nature and availability… See more
Last year I was diagnosed with cancer, and within two weeks Dr. Koh had his staff make appointments and put together a together a team to treat the cancer. Because of him and his concern is the reason that I am so glad that I found him as my physician over 25 years ago. Doctor Koh is a phenomenal doctor and I am so happy to be treated by him.
I have been going to Dr. Koh for over a decade and am well pleased with the results.
Dear Dr. Koh, We feel so blessed to have a wonderfully intelligent and caring physician watching over us. Our health is in the best of hands, and we can experience peace knowing that you are there for us. We appreciate your firm guidance that has led us to better health practices. We truly appreciate the time that you take to listen to us and to share your extensive medical knowledge that… See more
We know that Dr. Koh has our health and well being as our primary physician. This true for our routine checkups, followups, and especially when he has to oversee our care during a serious illness as I experienced this past December.
My husband and I really appreciate Dr.Kohs focus on keeping us healthy so we can enjoy a better quality of health as we enjoy our senior years together.… See more

Dr Koh has provided care for my husband and myself for more than 15 years. He is smart, kind, patient, supportive, available, and reassuring. As seniors we feel that Dr. Koh is preparing us for life's challenges that lie ahead. He told us a long time ago that his purpose was to keep us healthy as we age so that we can live active and productive lives for as long as possible. With his… See more
Dr. Koh has provided excellent health care and physician services. He thoroughly explains all medicine he gives me. He is very personable and really cares about his patients health and if it can be improved. You are treated like family.
Dr. Koh,
Your overall professionalism and oversight of my medical status through a comprehensive preventative health care program have insured I have been been able to maintain my current lifestyle. Thanks to you and your staff for your care and concern for my well being.