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  • Dirk Diefendorf, M.D.
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Dirk Diefendorf, M.D.

Dirk Diefendorf, M.D.

101 S. San Mateo Drive Suite 212 San Mateo, CA 94401
  • View Map of 101 S. San Mateo Drive,San Mateo,CA 94401
(650) 347-0517
  • Offers MyHealth Online
    This provider offers Sutter Health's electronic health record with the following online services:
    - Email your doctor's office
    - Prescription refills
    - View test results
    - Proxy access for caregivers
    - Track immunizations
    - Secure mobile access
    - Schedule an appointment*
    - Pay bills online*

    * Services with an asterisk vary by doctor.
Specialties:

Orthopedic Surgery

Accepting new patients

Sports Medicine

Accepting new patients

Your Care Team May Offer Video Visits

Please contact your provider's office for availability.

Accepted Health Plans

Below is a list of plans accepted by this doctor.

While we strive to keep this list up to date, it's always a good idea to check with your health plan to determine the specific details of your coverage, and to contact the doctor's office to verify acceptance of your particular plan.

Open View all Plans

Professional Interests

Orthopedic Surgery

  • Achilles tendon repair, ACL reconstruction, Acute fracture management, Ankle arthritis, Ankle arthroscopy, Ankle ligament reconstruction, Ankle pain, Ankle reconstruction, Ankle tendon repair, Avascular necrosis, Biceps pathology, Biologic joint reconstruction, Carpal tunnel release

  • Cartilage implantation and transfer, Cartilage restoration and repair, Complex fractures of the elbow, Complex fractures of the forearm, Complex fractures of the hand, Complex fractures of the shoulder, Complex fractures of the wrist, DeQuervains tenosynovitis, Elbow arthritis, Elbow arthroscopy, Elbow ligament repair, Elbow pain, Elbow surgery, Elbow tendon repair, Femoroacetabular impingement surgery, Foot arthritis, Foot surgery, Ganglion cyst removal, Gluteus medius repair, Hand and wrist problems, Hand and wrist surgery, Hip arthritis, Hip arthroscopy, Hip pain, Hip problems, Hip replacement, Hip surgery, Instability/dislocation/labral injuries, Knee arthritis, Knee arthroscopy, Knee ligament repair, Knee pain, Knee problems, Knee replacement, Knee surgery, Knee tendon repair, Meniscus allograft, Meniscus repair, Microfracture surgery, Minimally invasive surgery, Osteochondral allografts, Osteochondral defects, Osteotomy, Patellofemoral pain syndrome, PCL reconstruction, Pediatric orthopedic surgery, Peripheral nerve surgery, Posterolateral corner injuries, Radial head replacement, Reconstruction of posterolateral corner injuries, Reconstructive surgery, Reverse shoulder replacement, Rotator cuff problems, Rotator cuff repair, Scaphoid fractures, Shoulder arthritis, Shoulder arthroscopy, Shoulder labrum repair, Shoulder ligament repair, Shoulder pain, Shoulder replacement, Shoulder resurfacing, Shoulder surgery, Shoulder tendon repair, SLAP injuries, Sports medicine, Tendinitis, Trauma, Trigger finger release, Trochanteric bursitis, Ulnar shortening osteotomy, Ultrasound-guided injections, Unicompartmental knee arthroplasty, Viscosupplementation, Wrist arthritis, Wrist arthroscopy, Wrist pain
Show moreon Orthopedic Surgery Open

Sports Medicine

  • ACL joint pathology, Adolescent athletes, Anterior cruciate ligament (ACL) injury, Arthritis of the hip and knee, Articular cartilage restoration, Biologic resurfacing, Biologic resurfacing of the knee, Biologic resurfacing of the shoulder, Cartilage disorders, Dupuytren's disease treatment

  • Foot and ankle injuries, Fracture care, Hand and upper extremity injuries, Impingement syndrome, Knee disorders, Labral injuries, Meniscus injuries, Non-surgical management of orthopedic problems, Overuse injuries, Pediatric sports medicine, Prevention of sports-related injuries, Rotator cuff and shoulder instability, Rotator cuff injuries, Rotator cuff tears, Scaphoid fractures, Shoulder dislocation, Shoulder disorders, SLAP injuries, Sports-related injuries, Ultrasound-guided injections, Women's sports medicine
Show moreon Sports Medicine Open

Affiliations

Hospital Affiliations

Mills-Peninsula Medical Center

Medical Affiliations

Mills-Peninsula Medical Group

Sutter Medical Network

Practice Locations

View Map of 101 S. San Mateo Drive,San Mateo,CA,94401
Address:
101 S. San Mateo Drive Suite 212 San Mateo, CA 94401
  • View Map of 101 S. San Mateo Drive,San Mateo,CA,94401
(650) 347-0517
(650) 347-0566 fax

Board Certifications

BOARD CERTIFIED IN:

  • Orthopedic Surgery

Credentials & Notables

Medical School:

Northwestern University School of Medicine

Residency:

University of Southern California

Internship:

University of Southern California

Fellowship:

Southern California Orthopedic Institute, Sports Medicine/Arthroscopic Surgery

Languages

Primary Language(s)

English

Additional Language(s)

Spanish

Physicians Nearby

Leroy Sims, M.D.

Leroy Sims, M.D.

Emergency Medicine

Sports Medicine

Paul N. Abeyta, M.D.

Paul N. Abeyta, M.D.

Sports Medicine

Orthopedic Surgery

Jaret Butler, M.D.

Jaret Butler, M.D.

Hand Surgery

Orthopedic Surgery

Robert Detch, M.D.

Robert Detch, M.D.

Orthopedic Surgery

Todd S. Kim, M.D.

Todd S. Kim, M.D.

Orthopedic Surgery

Musa B. Zaid, M.D.

Musa B. Zaid, M.D.

Orthopedic Surgery

Barbie Barrett, M.D.

Barbie Barrett, M.D.

Emergency Medicine

Occupational Medicine

Sports Medicine

Jeffrey M. Schubiner, M.D.

Jeffrey M. Schubiner, M.D.

Orthopedic Surgery

Marvin Y. Lo, M.D.

Marvin Y. Lo, M.D.

Orthopedic Surgery

Sports Medicine

View All Physicians

Related Service Lines

  • Back and Spine Services
  • Neuroscience
  • Orthopedic Services
  • Surgical Services

Disclaimer

This physician directory is provided as a convenience to you. It is not intended as a recommendation, referral or endorsement of any particular provider. Physicians are not employees or agents of Sutter Health or its affiliates. The information is submitted by each doctor and we make no guarantee or warranty as to the accuracy of the information. Sutter Health is not responsible for any loss or damage caused by your reliance on this information. You should verify the accuracy of the information directly with the physician's office.

All doctors on this site are affiliated with Sutter's network of care - members of the medical staff of Sutter-affiliated hospitals, affiliated medical groups, and independent practice associations that participate in clinical initiatives. Doctors do not pay a fee to be included in this directory. If a physician ceases to fall within one of the categories noted, he/she would no longer be listed on the site. Doctors meeting your search criteria are presented in alphabetical order by last name, or by geographic proximity if a zip code has been used as search criterion. Find out more about star ratings.

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