2022-2023 Officers
President: Michael G. Klassen, M.D.
Dr. Michael Klassen earned his medical degree from UCLA in 1989. He continued his training with a surgical internship and one-year general surgical residency at UCSF. He then went on to complete his orthopaedic surgery residency at UCSF in 1995.
Board certified in Orthopaedic Surgery & Sports Medicine by the American Board of Orthopaedic Surgery, Dr. Klassen has been in practice in California since 1999 and served as team orthopaedic surgeon for local college and high schools. Active in various professional organizations, Dr. Klassen is a member of AANA; Consultant Reviewer for sports medicine for JBJS, Western Orthopaedic Association; and Member of the Board of Directors (2006-2018) with the California Orthopaedic Association; Dr. Klassen is an Associate Master Instructor for shoulder and knee arthroscopy at the AANA learning center in Chicago, IL.
His professional interests are in shoulder and knee arthroscopy, sports medicine as well as cartilage transplant and ligament reconstruction. He has performed Medical-Legal evaluations since 2000. He is an avid golfer.
First Vice President: Dori J. Neill Cage, M.D.
Dr. Dori Cage is an Orthopedic Surgeon who specializes in the Hand and Upper Extremity. She has fellowship training in Hand and Microvascular Surgery attending medical school and performing her residency at Baylor College of Medicine. She completed an internship at Northwestern University and a fellowship at UC San Diego. Dr. Cage is president of San Diego Hand Specialists, where her practice includes caring for a wide range of sports injuries, nerve syndromes, and hereditary and arthritic conditions.
Dr. Cage has been active with the COA as a member of the Board of Directors and American Academy of Orthopaedic Surgeons Board of Councilors since 2010. She also served on the Boards of the San Diego Western Orthopedic Association and San Diego Arthritis Foundation. In addition to her regular practice, she has a tradition of helping those in need. She has traveled to Belize, Mexico, and Peru to teach and provide care. She has worked with the San Diego County Medical Society Champions for Health since its early days, providing care for those who would otherwise not receive treatment. She enjoys running, watersports and promoting youth fitness.
Second Vice President: Raymond Raven, MD, MBA
Dr. Raymond Raven is a board-certified Orthopaedic Surgeon with subspecialty fellowship training in Hand & Upper Extremity Surgery. He has a Certificate of Added Qualifications (CAQ) in both Surgery of the Hand and Orthopaedic Sports Medicine, one of only a few surgeons in California with this distinction.
Dr. Raven is the Managing Partner and CEO of Orthopaedic Surgery Specialists where he has the privilege and challenge of overseeing the quality of health care delivery for more than 60,000 patient-encounters each year in the group`s clinic, rehabilitation center and ambulatory surgical centers. Dr. Raven`s clinical practice focuses on the management of musculoskeletal and neurovascular conditions of the shoulder, elbow, wrist and hand in children and adults.
Secretary-Treasurer: Robert R. Slater, Jr., M.D. F.A.C.S.
Dr. Bob Slater earned his B.A. in History from Stanford University and his medical degree from the University of Wisconsin – Madison. His internship and residency in Orthopaedic Surgery were at the University of North Carolina – Chapel Hill. He completed his formal training with a fellowship in Hand and Upper Extremity Surgery at UC-Davis, and was a full-time faculty member there for several years. He has remained on the volunteer clinical faculty at UC-Davis while subsequently working in different practice environments and is now a Clinical Professor. For the past 14 years, he has run his own private practice devoted to surgery of the hand and upper extremity in Folsom.
He has had leadership roles in several organizations, is a Past President of the Western Orthopaedic Association and is current President of the Western Orthopaedic Foundation. Hobbies include skiing, cycling and rowing on a Masters crew team.
