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.
Areas of Expertise
- Internal Medicine
- American Board of Internal Medicine, Gastroenterology, 1981
- American Board of Internal Medicine, Internal Medicine, 1976
- George Washington University, MD, 1973
- University of Southern California School of Medicine
- University of California at Irvine Medical Center