Dr. Dirk Diefendorf, MD

Dr. Dirk Diefendorf, MD

Sports Medicine  ·  
Male  ·  
Age 61
(26)
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Dr. Dirk Diefendorf, MD is a sports medicine specialist in San Mateo, CA and has been practicing for 29 years. He graduated from Northwestern University The Feinberg School Of Medicine in 1983 and specializes in sports medicine and orthopedic surgery.

101 S San Mateo Dr Ste 212

San Mateo, CA 94401

Contact Information

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Blue Shield of California
  • Cigna
  • Commercial Insurance Company
  • First Health (Coventry Health Care)
  • Health Net
  • Humana
  • 3 More

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Dr. Diefendorf's Experience

0%ExperienceMatch
Dr. Diefendorf's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Sports Medicine
  • Board certified in Orthopaedic Sports Medicine, Orthopedic Surgery and Sports Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found

Care Philosophy

This content was provided by Dr. Diefendorf "Board Certified Orthopedic Surgeon"

2  Specialties

  • Sports Medicine
  • Orthopedic Surgery

3  Board Certifications

  • Orthopaedic Sports Medicine
    Accredited by: American Board of Orthopaedic Surgery*
  • Orthopedic Surgery
    Accredited by: American Board of Medical Specialties*
  • Sports Medicine
    Accredited by: American Board of Medical Specialties*

84  Conditions Treated

  • Achilles Tendinitis
  • Adhesive Capsulitis
  • Ankle Fracture
  • Ankle Sprain and Achilles Tendon Sprain or Rupture
  • Ankle Sprains and Strains
  • Anterior Cruciate Ligament (ACL) or Posterior Cruciate Ligament (PCL) Tear
  • Arthritis of the Elbow
  • Ataxia
  • Baker’s Cyst
  • Bone Disorders
  • Broken Arm
  • Bunion
  • Bursitis
  • Carpal Tunnel Syndrome
  • Cervical Spine Myelopathy
  • Chondrocalcinosis
  • Chronic Neck Pain
  • Complications of Joint Prosthesis
  • Difficulty With Walking
  • Elbow Bursitis
  • Elbow Injuries
  • Elbow Sprain
  • Enthesopathy of Hip (incl. Trochanteric Bursitis)
  • Enthesopathy of Knee (incl. Bursitis of Knee)
  • Femur Fracture
  • Foot Conditions
  • Foot Fracture
  • Fracture
  • Fracture of Hand (incl. Fingers)
  • Gait Abnormality
  • Ganglion Cyst
  • Glenoid Labrum Tear
  • Gout
  • Hammer Toe
  • Hand Conditions
  • Hand Fracture
  • Herniated Disc
  • Hip Fracture
  • Hip Pointer Injuries
  • Hip Sprain
  • Internal Derangement of Knee
  • Joint Pain
  • Knee Dislocation
  • Knee Disorders
  • Knee Fracture
  • Knee Sprain
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Lateral Collateral Ligament (LCL) Sprain
  • Leg Fracture Above Knee (incl. Hip)
  • Leg Fracture Below Knee (incl. Ankle)
  • Limb Pain
  • Low Back Pain
  • Nerve Root Injury and Plexus Disorders (incl. Pinched Nerve)
  • Non-Unions and Malunions of Fractures
  • Osgood Schlatter Disease
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Patellofemoral Pain Syndrome or Knee Pain
  • Pelvic Fracture
  • Peripheral Nerve Disorders
  • Plantar Fasciitis
  • Pyogenic Arthritis
  • Rotator Cuff Tear
  • Runner's Knee
  • Scapular Fracture
  • Sciatica (Not Due to Disc Displacement)
  • Scoliosis
  • Shoulder Dislocation
  • Shoulder Disorders
  • Shoulder Impingement Syndrome
  • Shoulder Tendinitis and Tenosynovitis
  • Sjögren's Syndrome
  • Spondylolisthesis
  • Spondylosis
  • Sprains and Strains (incl. Muscle Tear)
  • Tibia and Fibula Fractures
  • Trigger Finger
  • Wrist Fracture

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55  Procedures

  • ACL Surgery
  • All Shoulder or Elbow Replacement Procedures
  • Ankle Arthroscopy
  • Ankle Fracture Repair
  • Arm Surgery
  • Arthritic Shoulder Reconstruction
  • Arthroscopic Shoulder Reconstruction
  • Arthroscopic Shoulder Repair
  • Arthroscopic Shoulder Surgery
  • Dressing and-or Debridement of Wound, Infection, or Burn (incl. Negative Pressure Wound Therapy)
  • Elbow Fracture and Dislocation Treatment
  • Elbow Fracture and-or Dislocation Treatment, Closed
  • Elbow Fracture and-or Dislocation Treatment, Open
  • Epidural Block, Facet Blocks
  • Excision of Femur or Knee
  • Excision of Tibia or Fibula
  • Foot and Ankle DislocationTreatment, Open
  • Foot and Ankle Fracture and Dislocation Treatment
  • Foot and Ankle Fracture Treatment, Open
  • Foot and Ankle Ligament and Tendon Repair
  • Fracture and-or Dislocation Treatment
  • Fracture Care
  • Fracture Open Reduction and Internal Fixation (ORIF)
  • Glenoid Labrum Repair
  • Hand and Wrist Fracture and Dislocation Treatment
  • Hand and Wrist Fracture Treatment, Closed
  • Hand and Wrist Fracture Treatment, Open
  • Hip Fracture and Dislocation Treatment
  • Hip Fracture and-or Dislocation Treatment, Closed
  • Hip Fracture and-or Dislocation Treatment, Open
  • Hip Replacement
  • Joint Drainage
  • Knee and Leg Fracture and Dislocation Treatment
  • Knee and Lower Leg Fracture Treatment, Closed
  • Knee and Lower Leg Fracture Treatment, Open
  • Knee Arthroscopy
  • Knee Replacement
  • Knee Replacement Revision
  • Knee Surgery
  • Myofascial Trigger Point Injection
  • Resection or Ablation of Bone Tumor, Partial or Complete Resection of Bone, Debridement of Bone
  • Reverse Total Shoulder and Total Shoulder Replacement
  • Rotator Cuff Surgery
  • Separated Femoral Epiphysis Treatment
  • Shoulder Dislocation Treatment
  • Shoulder Fracture and Dislocation Treatment
  • Shoulder Fracture Treatment
  • Shoulder Reconstruction
  • Shoulder Replacement
  • Shoulder Resurfacing
  • Shoulder Stabilizations
  • Shoulder Surgery
  • Simple Fracture Care and Casting
  • Synovial Biopsy
  • Trigger Finger Release

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Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • University of California At Los Angeles
    Undergraduate School | Graduated 1978
  • Northwestern University The Feinberg School Of Medicine
    Medical School | Graduated 1983
  • University of Southern California
    Internship Hospital | Completed 1984
  • University of Southern California
    Residency Hospital | Completed 1988
  • The Southern California Orthopedic Institute
    Fellowship Hospital | Completed 1989

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Diefendorf has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

  • California Orthopaedic Association, Member

Dr. Diefendorf's Reviews

4.5
Likelihood of recommending Dr. Diefendorf to family and friends
26 total reviews (10 have comments)

Likelihood to Recommend (26)

  • 5
    (21)
  • 4
    (2)
  • 3
    (0)
  • 2
    (0)
  • 1
    (3)

Dr. Diefendorf's Performance

  • Trustworthiness

    EXCELLENT
  • Explains condition(s) well

    EXCELLENT
  • Answers questions

    EXCELLENT
  • Time well spent

    EXCELLENT

Office & Staff Performance

  • Scheduling

    EXCELLENT
  • Office environment

    EXCELLENT
  • Staff friendliness

    EXCELLENT
  • Average wait time

    10 to 15 minutes

Patient Comments (10)

I’m extremely satisfied with Dr. Diefendorf, I would recommend him to anyone. He’s replaced both of my knees(not at the same time). At first I thought he was being hard on me about my PT, I was wrong I did what he told me to do of course it was painful. Now I have full range of motion in both...more
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I rarely write reviews, I hope there's something called Negative rating. So far this is my worst hospital experience till date. I had to pay $35 as a copay, which they never collected at the visit, They didn't send a single mail nor called me in this regard. Now after an year i see than in my...more
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When I injured myself again I knew I was going to go back to Dr. Diefendorf and I had to change primary Drs. to do so. I had micro fracture surgery on my right knee along with the allograft procedure and cleaning up the meniscus. It is 6 months since the surgery and I feel great, walking normal...more
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I suffered a fracture of my wrist on July 29th 2016. It was surgically repaired on Aug 5th and then a cast for 3 weeks. I can not say enough good things about this doctor. He is a excellent surgeon. Everything went perfectly because of his skill. He has excellent bedside manner and kept me...more
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I had a total shoulder replacement last year. Completely satisfied with his personal care and communication. He is an excellent surgeon and would highly recommend him. ??M. Wolf
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