Dr. Ralph Sellers Johnson, MD

Dr. Ralph Johnson is an internal medicine physician who earned his medical degree from the University of Texas Health Science Center at San Antonio Joe R. and Teresa Lozano Long School of Medicine. With 22 years of experience in internal medicine, he focuses on comprehensive adult healthcare and preventive medicine. Dr. Johnson speaks English and provides care for a wide range of adult health needs.

Dr. Johnson practices at multiple Kaiser Permanente locations throughout San Diego, California, including facilities in Otay Mesa, central San Diego, and Clairemont Mesa. He specializes in managing diabetes and high blood pressure, including emergency situations involving severely elevated blood pressure. His practice emphasizes preventive care through adult vaccinations, including flu shots and shingles vaccines. Patients have given Dr. Johnson an average rating of 4.0 on Vitals.