Dr. Johnston first received a Pharm D. from UCSF, taught pharmacy school at the University of New Mexico, received his MD from UNM, and then came for his residency in Merced in 1985.

Dr. Johnston especially enjoys prenatal care and delivery. He has held privileges at Valley Children’s Hospital for more than 25 years. He is a certified clinical densitometrist and is Medical Director at Grace Home in Livingston, Anberry in Atwater, and Anberry Transitional Care in Merced.

Dr. Johnston enjoys watching his grandchildren play baseball, basketball and volleyball. He is the team doctor for Stone Ridge Christian High School. In his spare time, he works.