Dr. Mattson is a Board Certified Orthopaedic Surgeon who has been practicing in Berkeley for more than 20 years.

Dr. Mattson graduated from Northwestern University in Evanston, Illinois and completed his medical and Orthopaedic training at the University of Michigan in Ann Arbor.

Dr. Mattson joined Berkeley Orthopaedics in 1983 and was Chairman of Orthopaedics at the Student Health Service of the University of California at Berkeley from 1990-2004. Dr. Mattson is a member of the clinical faculty at the University of California San Francisco Medical Center.

Dr. Mattson specializes in knee arthroscopy and Anterior Cruciate Ligament Reconstruction. He uses minimally invasive state-of-the-art arthroscopic allografts (donor grafts) for ACL Reconstructions. Dr. Mattson has one of the largest series of soft tissue allograft ACL Reconstructions in Northern California.