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Back/Neck (Spine), Hip, Joint Replacement, Knee

Dr. Gregory Dietrich attended the prestigious medical school at Loma Linda University and performed his residency in orthopaedic surgery at Loma Linda University Medical Center. Following his residency, he completed a fellowship in spine surgery at Swedish Medical Center in Seattle, Washington.

Dr. Dietrich joined Lewiston Orthopaedics in 1998. Although he specializes in the spine, Dr. Dietrich also treats general orthopaedic cases and orthopaedic trauma cases. He hails from the greater Seattle area and has spent time commercial salmon fishing in Alaska.

Dr. Dietrich is currently licensed in Idaho and Washington and is board-certified by the American Board of Orthopaedic Surgery.


  • Walla Walla University, College Place, WA

Medical Degree

  • Loma Linda University School of Medicine, Loma Linda, CA


  • Loma Linda University Medical Center, Loma Linda, CA


  • Loma Linda University Medical Center, Loma Linda, CA


  • Spine Surgery, Swedish Medical Center, Seattle, WA


  • American Board of Orthopaedic Surgery

Professional Associations

  • American Academy of Orthopaedic Surgeons
  • Neufeld Society

Team Affiliations

  • Washington State University
  • University of Idaho
  • Lewis-Clark State College

Lewiston (Main Office)

Appointment Line: (208) 743-3523, (800) 841-3523
"Reception was prompt and courteous. My wait was short. My visit was concise, honest and with exact answers, and the assistant and doctor had all my info in front of them and they fostered an air of confidence. It's a good place." – Dan D.