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Gregory D. Dietrich, M.D.
Average Rating: 4.5 (8 reviews)
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

"I used Dr. Gregory Dietrich :

He was my surgeon for back surgery. He is fantastic. When I needed help I began to inquire of others who had had back surgery. The name everyone spoke of was Dietrich ....over and over. So the rest of the story is my most successful surgery the  pinning L4 and L5. My recovery has been without problems. He is a wonderful surgeon.

I am totally thankful for his skills." – Betty A.