• Welcome to
    Kenai Spine
    Kenai Spine is a regional spine Center of Excellence that combines the expertise
    of a fellowship-trained spine surgeon and a spine therapist — all under one roof.
  • All under one roof
    Kenai Spine combines MDs who specialize in non-surgical options,
    spine surgeons, spine therapists & diagnostics — all under 1 roof.
  • Minimally Invasive
    Spine Surgery
    New technology enables the spine surgeon
    to reduce the size of the incision for a faster recovery.
  • Internal Physical
    Our spine therapists help relieve back & neck pain symptoms
    and get you back to your favorite activities
  • Non-surgical
    Kenai Spine focuses 100% on back and neck pain,
    with both non-surgical and surgical treatment options.
  • Understanding your
    Our Internet site has symptom charts that show what
    may be causing your back or neck pain.

A Regional Destination Center for Back and Neck Pain.

A fresh approach to back pain

The good news is that 80% of back and neck pain gets better on its own over time. And with Kenai Spine, only a small percentage of patients will ever need spine surgery. Isn’t that a relief? Within this site, you will find symptom charts, home remedies that relieve pain symptoms, and when you need to see a doctor. One of the key features that sets Kenai Spine apart from other clinics that treat back and neck pain is its spine-specialized therapy area.

Patient Success Stories

Watch success stories from Kenai Spine patients

Spine center in Alaska helps school teacher return to activity after severe neck and arm pain and weakness

Dr. Humphreys helps Frank return to managing local Kenai brewery after severe low back pain



There is no exercise better for the heart than reaching down and lifting people up.

community outreach
Community Involvement

Kenai Spine takes pride in supporting the many communities we serve.

Medical Animations
Medical Animations

Watch various medical animations to learn about conditions and treatment options.


Get contact information and driving directions to our location

Our Team
S. Craig Humphreys, M.D.

Board Certified Orthopedic Surgeon
Fellowship-Trained Spine Surgeon

John L. Andreshak, MD

Board Certified Orthopedic Surgeon
Fellowship-Trained Spine Surgeon

Mark Simonson, MD

Board Certified in Physical Medicine & Rehabilitation
Board Certified in Pain Medicine