Dr. Keith A Johnson specializes in family practice in Walnut Creek area. Dr. Keith A Johnson, MD has a medical practice at 1450 Treat Boulevard, Suite 160, Walnut Creek CA, and has over 36 years of experience in the field of medicine. He graduated from University Of Michigan Medical School with his medical degree in 1981. He is affiliated with numerous hospitals, including John Muir Medical Center - Walnut Creek Campus (CA) and more. Dr. Johnson is accepting new patients at his medical office and practice location in Walnut Creek, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.