Mark Johnson, MD

Dr. Johnson has been practicing medicine since 1981 and was board certified in Internal Medicine in 1976. He was also board certified in Gastroenterology in 1981. Dr. Johnson received his medical degree from George Washington University in 1973. He served his internship at USC in LA and served his residency at USC in LA.

Specialties

  • Gastroenterology

Areas of Expertise

  • Gastroenterology
  • Internal Medicine

Board Certifications

  • American Board of Internal Medicine, Gastroenterology, 1981
  • American Board of Internal Medicine, Internal Medicine, 1976

Medical Education

  • George Washington University, MD, 1973

Residencies

  • University of Southern California School of Medicine

Fellowships

  • University of California at Irvine Medical Center