Suggest an Edit Name* Categories* Doctor Hospital Pharmacy Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:00 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 03:00 pm Company description Dr. Gregory Charles Hahn located in the city of Washington, state Columbia. The legal address of the Doctor 6900 Georgia Ave NW. Directions to the Doctor Dr. Gregory Charles Hahn can be found on our interactive map. Ask your questions by calling Data not provided on workdays.</br></br></br>NPI number: Data not provided</br>Provider's gender: Data not provided</br>Practice names: Data not provided</br>Board certifications: Data not provided Your comments (not for publishing) * — Required information Dr. Gregory Charles Hahn - Washington ← View details 6900 Georgia Ave NW, Columbia, Washington, 20307, Washington, Columbia 20307 Data not provided