David K. Yoon, M.D.,F.A.C.G. Accepting New Patients Primary Specialty: Gastroenterology (Board Certified) Education Residency Internal Medicine George Washington UniversityWashington , DC1998 Fellowship Gastroenterology College of MedicineHouston , TX2001 Board Certification Gastroenterology American Board of Internal Medicine2003 Recertified American Board of Internal Medicine - Gastroenterology2013