Dr. Christina has a long history with APMA including a decade-long tenure on staff as director of Scientific Affairs. Before joining APMA staff, he was in private practice for 20 years in Rockville, MD, and was chief of Podiatry at Suburban Hospital in Bethesda, MD. Dr. Christina was a member of the Maryland Podiatric Medical Association and served as president from 1991–1993. As an American Board of Foot and Ankle Surgery-certified podiatrist, he was instrumental in achieving an expansion of the Maryland scope of practice for podiatrists to include ankle privileges. Dr. Christina was a delegate to the APMA House of Delegates from 1992–2005, a member of APMA’s Coding Committee, a PAC coordinator, and a member of the APMAPAC Board of Directors. He was president of the Maryland State Board of Podiatric Medical Examiners and a member of the National Board of Podiatric Medical Examiners. He is a member of the American Diabetes Association, the American Public Health Association, the American Society of Association Executives, and the American Society of Podiatric Surgeons.

Dr. Christina graduated magna cum laude from West Virginia University with a BA in Biology and received his doctor of podiatric medicine degree from the Pennsylvania College of Podiatric Medicine (now Temple University School of Podiatric Medicine). He completed residency training at Straith Memorial Hospital in Southfield, MI, and University of Maryland/Lutheran Hospital in Baltimore.