Mathias A Masem MD

Mathias A. Masem, MD, is a board-certified orthopaedic surgeon with advanced certification in surgery of the hand. He serves as an Assistant Clinical Professor in the UCSF Department of Orthopaedic Surgery and provides specialized care for conditions affecting the hand, elbow, and peripheral nerves, with an emphasis on upper-extremity function, reconstruction, and recovery. Dr. Masem earned his medical degree from the University of Minnesota and completed orthopaedic surgery residency training at UCSF Medical Center. He pursued additional fellowship training in hand surgery, including hand, upper-extremity, and microsurgery training associated with Massachusetts General Hospital and Harvard Medical School, as well as advanced hand surgery fellowship training in Oakland. His work also includes orthopaedic research experience in Switzerland, with appointments at the University of Bern and the Laboratory for Experimental Surgery in Davos. Dr. Masem has held key clinical leadership roles, including Chief of the Division of Hand Surgery and immediate past Chairman of the Department of Orthopedic Surgery at Alta Bates Summit Medical Center. He also serves as a consultant for hand and upper-extremity injuries for University of California, Berkeley athletic teams. His scholarly contributions include peer-reviewed publications in leading medical journals.