New Search Yassin Samir Abbas Mohamed M.D. (301) 662-8119 Department Medicine Specialty Internal Medicine Primary Office Address: FHMG - Internal Medicine Associates 1562 Opossumtown Pike Frederick, MD 21702 Phone: (301) 662-8119 Recommend this Physician Get Directions Education Medical School - Ain Shams University, School of Medicine Residency - Graduate Hospital Residency - Abington Memorial Hospital Board Certifications American Board of Internal Medicine