Welcome to my Orthopedic Practice!

My primary goal is to return all my patients to their active lifestyle as quickly and safely as possible. As a Board-Certified Orthopedic Surgeon and Board-Certified Fellowship trained Sports Medicine Specialist, I routinely perform arthroscopic and reconstructive surgery of the shoulder, knee, ankle, elbow, and wrist at Waverley Surgery Center in Palo Alto, California. I also regularly perform joint replacement surgery of the knee, hip and shoulder at Peninsula Hospital in Burlingame, California. Almost all of my joint replacement surgery patients are able to return home on the same or next day following their surgery.

As a sports medicine specialist, I regularly provide orthopedic surgical care for athletes of all ages including high school and collegiate athletes and the occasional professional athlete. I have served as the Team Orthopedic Surgeon for many local high school and collegiate programs. For the past 28 years, I have served as the Team Orthopedic Surgeon for Serra High School in San Mateo, California.

Our experienced staff will always endeavor to treat all of our patients with kindness, compassion, and respect. We will provide outstanding orthopedic care for you and your family. We will always strive to care for you exactly as we would want our family members to be cared for. This treatment philosophy has served our patients very well for the past 28 years and has enabled us to build a very successful orthopedic practice. We look forward to the opportunity to take excellent care of you and your family!

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Meet Our Doctor

Dirk R. Diefendorf, MD

Dr. Dirk R. Diefendorf has served as the Team Orthopedic Surgeon for Serra for 28 years and has provided on field orthopedic care for all Serra athletes. He completed his undergraduate degree at UCLA and received his MD degree at Northwestern University. He completed his Orthopedic Surgical residency at USC, during which time he worked at the Kerlan-Jobe Orthopedic Clinic for a 4 month Sports Medicine rotation. He then completed a one year Sports Medicine Fellowship at the Southern California Orthopedic Institute where he specialized in Shoulder and Knee arthroscopic and reconstructive surgery. He is Board Certified by the American Board of Orthopedic Surgery and is also Board Certified in Orthopedic Sports Medicine. He regularly attends advanced educational courses in Sports Medicine and has been an instructor at many of these courses in the past. He accepts multiple insurance plans.