Our Physicians

Dr. Mark Reis

Dr. Mark Reis

Dr. Mark Reis is a board-certified orthopedic surgeon, received his medical degree from Northwestern University Feinberg School of Medicine graduating with honors in 1986 and has more than 31 years of diverse experience. He has been practicing medicine and orthopedics in the SGMH community for 6 years. Dr. Mark Reis and his team received the highest-level of certification from the International Geriatric Fracture Society for Geriatric Fracture Care.

Dr. Mark Reis graduated medical school from Northwestern University and completed his orthopedic residency and surgical internship at the Naval Regional Medical Center in San Diego. He completed his sports fellowship training at the Kerlan-Jobe Orthopaedic Clinic in Los Angeles where he assisted in the care of the Dodgers, Lakers, Kings, Ducks and USC Collegiate Football. He is a consultant for the Arthrex Company, helping to develop new technology for minimally invasive knee replacement. Dr. Reis is board-certified by and an official examiner for The American Board of Orthopaedic Surgery.


Honors Program Medical School: Northwestern University, Evanston, Illinois 1986

Internship: Naval Regional Medical Center, San Diego

Residency: Naval Regional Medical Center, San Diego  

Sports Fellowship Training: Kerlan-Jobe Orthopaedic Clinic, Los Angeles


  • Total Hip, Knee and Shoulder Replacements, Rotator Cuff, Arthroscopy, Ligament Injuries, Fractured/Broken Bones, Carpal Tunnel Syndrome, and Sports Injuries.
  • Hip Fracture Care
  • Partial/Minimally Invasive Knee Replacement
  • Complex Shoulder Surgery
  • Same Day Joint Replacement


  • Consultant for Arthrex Corporation
  • Examiner for The American Board of Orthopaedic Surgery


Highest IGFS Certification

Dr. Mark Reis and his team were awarded the highest level of certification from the International Geriatric Fracture Society.
healthgrades honor roll

Healthgrades Honor Roll

Dr. Mark Reis is a Healthgrades Honor Roll Physician & Five-Star Recipient for Total Hip Replacement Surgeries.

Certified by: The American Board

Dr. Mark Reis is an Orthopedic Surgeon that has been certified by the American Board of Orthopaedic Surgery.

Conditions Treated

  • Achilles Tendinitis
  • Adhesive Capsulitis
  • Ankle Fracture
  • Ankle Sprains and Strains
  • Anterior Cruciate Ligament (ACL) or Posterior Cruciate Ligament (PCL) Tear
  • Back Pain
  • Broken Arm
  • Bursitis
  • Carpal Tunnel Syndrome
  • Chondrocalcinosis
  • Neck Pain
  • Elbow Bursitis
  • Elbow Injuries
  • Enthesopathy of Hip (incl. Trochanteric Bursitis)
  • Foot Fracture
  • Fracture of Hand (incl. Fingers)
  • Ganglion Cyst
  • Glenoid Labrum Tear
  • Hand Conditions
  • Hand Fracture
  • Hip Fracture
  • Internal Derangement of Knee
  • Knee Fracture
  • Knee Sprain
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Leg Fracture Above Knee (incl. Hip)
  • Leg Fracture Below Knee (incl. Ankle)
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hip
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Patellofemoral Pain Syndrome or Knee Pain
  • Plantar Fasciitis
  • Radiculopathy
  • Rotator Cuff Tear
  • Runner’s Knee
  • Sciatica
  • Shoulder Impingement Syndrome
  • Shoulder Tendinitis and Tenosynovitis
  • Tibia and Fibula Fractures
  • Trigger Finger


  • All Shoulder Replacement Procedures
  • Arthroscopic Shoulder Surgery
  • Carpal Tunnel Release
  • Foot and Ankle Fracture Treatment, Open
  • Foot and Ankle Fracture and Dislocation Treatment
  • Fracture Care
  • Hand and Wrist Fracture Treatment, Open
  • Hand and Wrist Fracture and Dislocation Treatment
  • Hip Fracture and Dislocation Treatment
  • Hip Replacement
  • Joint Drainage
  • Knee Arthroscopy
  • Knee Replacement
  • Knee Surgery
  • Knee and Lower Leg Fracture Treatment, Closed
  • Neuroplasty
  • Reverse Total Shoulder and Total Shoulder Replacement
  • Rotator Cuff Surgery
  • Steroid Injection
  • Trigger Finger Release

Major Health Plans Accepted by San Gorgonio Memorial Medical Clinic include but are not limited to:


  • Aetna
  • Aetna Senior Plans
  • Beaver Medical
  • Blue Cross
  • Blue Cross Senior Care
  • Blue Shield
  • Blue Shield 65
  • Cigna
  • Cigna Senior Plans
  • Healthnet
  • Healthnet Senior Plus
  • Medicare
  • PrimeCare
  • Scan Health Plan
  • Secure Horizons
  • United Healthcare (Formally Pacificare)

Call Us Today For More Information

Please call (951) 846-2877 Monday through Friday during operating hours (8:00am-5:00pm).