Each year, he performs over 500 joint replacements. He was specialty trained in hip and knee replacement at Harvard Medical School's Brigham and Women's Hospital. He is a member of the American Association of Hip and Knee Surgeons (AAHKS), the specialty society for surgeons focused on hip and knee replacement. While in Boston, Dr. Hernandez gained tremendous experience performing complex joint replacements and revising failed joint replacements. He was further trained in techniques of partial knee replacement, anterior hip replacement, and hip resurfacing.