During his twenty years in private practice, Dr. Christina was very involved in the local running community. He was a long time member of the Montgomery County Road Runners club, providing lectures to the beginning women’s running group and was medical coordinator for many years for the Pike’s Peak 10K run. In the podiatric medicine world, he was very involved in the Maryland Podiatric Medical Association serving as an officer and eventually as the MPMA president from 1991-1993. He was also a long time delegate from Maryland to the American Podiatric Medical Association’s House of Delegates. Dr. Christina was a member of the Maryland State Board of Podiatric Medical Examiners (the Maryland licensing board from 1999-2003) and twice was the Podiatry Section Chair at Suburban Hospital in Bethesda, Maryland.
In 2005, Dr. Christina accepted the position of Director of Scientific Affairs for the American Podiatric Medical Association. In that position he has been intimately involved in the development and implementation of quality measures related to diabetic foot care including involvement with the Physicians Consortium for Performance Improvement (PCPI), the Quality Alliance (AQA) and the National Quality Forum (NQF).