Dr. Raymond Marc Johnston specializes in chiropractic in San Luis Obispo area. Dr. Raymond Marc Johnston has a medical practice at 1150 Grove Street, San Luis Obispo CA, and has over 42 years of experience in the field of medicine. He graduated from Palmer College Chiropractic - West Sunnyvale with his medical degree in 1975. Dr. Johnston is accepting new patients at his medical office and practice location in San Luis Obispo, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.