About Amanda K. Osei, PA-C

Amanda K. Osei, PA-C, is a Certified Physician Assistant based in Northern Virginia. She earned her Master of Science in Physician Assistant Studies from The University of Lynchburg and specializes in the treatment of general gastrointestinal conditions. Dedicated to providing excellent patient care, Amanda is an active member of the American Academy of Physician Associates and the Gastroenterology & Hepatology Advanced Practice Providers.

Amanda K. Osei, PA-C is in collaborative practice with:

Alt Text

Atul V. Marathe, MD, FACP

View Profile
Alt Text

Michael C. Brown, MD

View Profile

Conditions & Procedures

  • Abdominal Pain
  • Acid Reflux & GERD
  • Constipation
  • Diverticulitis
  • Gastritis
  • H. Pylori
  • Hemorrhoids

Office Locations

Primary Location

Picture of the Woodbridge Office


14010 Smoketown Rd.
Suite 117
Woodbridge, VA 22192

Phone: 703-580-0181
Fax: 703-897-8763

Additional Locations


8140 Ashton Ave.
Suite 212
Manassas, VA 20109

Phone: 703-365-9085
Fax: 703-897-8763




The University of Lynchburg

Professional Highlights


Board Certified, Physician Assistant

Awards & Recognitions

Pi Alpha National Honor Society for PAs

Professional Memberships

  • American Academy of Physician Associates
  • Gastroenterology & Hepatology Advanced Practice Providers