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. Sisom Osia located in the city of Upper Marlboro, state Maryland. The legal address of the Doctor 9628 Marlboro Pike. Directions to the Doctor Dr. Sisom Osia can be found on our interactive map. Ask your questions by calling (301) 599-7010 on workdays.</br></br></br>NPI number: 1154442366</br>Provider's gender: Male</br>Practice names: Gateway Medical Center</br>Board certifications: American Board of Internal Medicine Your comments (not for publishing) * — Required information Dr. Sisom Osia - Upper Marlboro ← View details 9628 Marlboro Pike, Maryland, Upper Marlboro, 20772, Upper Marlboro, Maryland 20772 (301) 599-7010