Dr. Johnston has been providing quality OB and Family care for over 30 years in Merced County. He is committed to providing exceptional care in a timely manner to patients age 1 week to 99 . He attended UCSF where he received his doctorate in pharmacy. He then went on to medical school at the University of New Mexico. He moved to Merced for his residency program through UC Davis and never left. He recently stepped out on his own and opened his solo private practice in the El Portal Medical Plaza.
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