Charles Armstrong, DO, is a District Medical Group physician practicing Family Medicine at Valleywise Community Health Center – Guadalupe and Valleywise Community Health Center – McDowell. He studied medicine at A.T. Still University. Dr. Armstrong completed his residency at Via Christi in Wichita KS. He is board-certified by both the American Osteopathic Board of Family Physicians and American Board of Family Medicine, and is credentialed by the American Academy of HIV Medicine.