Dr. Cham specializes in arthroscopic shoulder and knee surgery and major joint replacement surgery. He earned his medical degrees from the regents of the State University of New York at Buffalo. He did his Orthopaedic residency in Buffalo. Has been board certified in orthopaedic surgery since 1985. He holds fellowship in the American Academy of Orthopaedic Surgeons. He is a member of the California Orthopaedic Association, California Medical Association, and the San Diego County Medical Society.