Dr. Gregory Koo Gregory T. Koo, Gregory T. Koo,

Gregory T. Koo, MD

Specializing in Family Medicine Urgent Care
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Affiliation: Owensboro Health

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Dr. Gregory Koo completed his medical training in Cincinnati and has spent the last 22 years practicing integrative and family medicine, mostly in rural Northern Kentucky. He is now putting down roots in Grayson County, where he and his family plan to stay “forever” on their new farm.

A love of people, science and his faith drew him to the medical field, and he enjoys building relationships with the families he serves. In his down time, he collects, plays and repairs violins and likes to work on his farm. 

Dr. Koo welcomes new patients of all ages.

Education & Training


  • University of Cincinnati College of Medicine


  • University of Cincinnati Hospital, Family Medicine

Board Certified

American Board of Family Medicine