Experienced Orthopedic Care – Advanced Hip and Knee Replacement

Gritman Orthopedic Surgeons delivers on our commitment to keep more patients close to home for healing and recovery. With advanced technology, diagnostic imaging, comprehensive pain management, therapy, education and support all integrated into your care plan, our experienced team is ready to get you back to your life with less pain and more mobility.


2301 W. A St., Moscow, ID 83843


Monday – Thursday, 8 a.m. to 5 p.m.
Friday, 8 a.m. to 12 p.m.
Closed on major holidays.


Phone: 208-883-1135
Fax: 208-892-0174

Orthopedic Education
Building sign: Gritman Orthopedic Surgeons
Joint Commission National Quality Approval

Hip and Knee Replacement. Certified by the Joint Commission.

Gritman’s orthopedic program carries the Joint Commission’s Gold Seal of Approval for Total Hip and Knee Replacement. The certification means our teams have gone through the rigorous and necessary steps to ensure we are meeting the highest clinical standards for quality and patient outcomes.

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Surgical Specialties

Working in partnership with your primary care provider, you and your surgeon will determine if orthopedic surgery is the best choice for your care plan. Orthopedic Surgeons Dr. Marvin Kym and Certified Orthopedic Nurse Practitioner Sunshine Huffman are specialists in less invasive techniques that lead to faster recovery.

Our surgeons specialize in:

  • Total Hip Replacement
  • Total Knee Replacement
  • Total Shoulder Reconstruction
  • Joint Reconstruction
  • Orthopedic Trauma
  • Sports Medicine
  • Ligament Reconstruction
  • Upper and Lower Extremity Treatment
  • Osteoarthritis of the Hip, Knee and Shoulder
  • Joint Injections
  • General Orthopedic Care

Robotic-Assisted Knee Replacement Combines Advanced Technology with Experienced Teams

VELYS robotic-assisted surgery solution optimizes patient outcomes

The VELYS robotic-assisted solution is the latest addition to the suite of advanced technology options offered through our orthopedic care programDesigned to assist Gritman’s experienced teams in each and every step of a total knee replacement surgery, its versatile execution increases precision to accelerate recovery and get you back to living your life with less pain and more mobility. 

As a 30-year-experienced total joint surgeon, I have a very specific way that I like to build total knees. The VELYS allows me to be in control and apply what I’ve learned over the years with data feedback to confirm that what I’m seeing with my eyes and feeling with my hands is reproduced with numbers that I can trust.Dr. Marvin Kym

Read more about the VELYS Robotics surgery solution

Exceptional Orthopedic Care – Our Patients’ Stories

Our Orthopedic Surgeons

Gritman Orthopedic Surgeons Dr. Marvin Kym and  Sunshine Huffman, ONP-C are specialists in procedures including hip and knee replacement, with experience in minimally invasive techniques that lead to faster recovery. 

Patients who come to Gritman Orthopedic Surgeons can expect a team approach to care with the most advanced technology available and with a team that is certified in orthopedics and ready to care for you at every step of the way.Dr. Marvin Kym, Sunshine Huffman, ONP-C
Gritman Orthopedic Surgeons
Dr. Marvin Kym Gritman Orthopedic Surgeons
Sunshine Huffman ONP-C, Gritman Orthopedic Surgeons
Gritman Orthopedic Surgeons
Gritman Orthopedic Surgeons
Gritman Orthopedic Surgeons
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Dr. Marvin Kym, MD Gritman Orthopedic Surgeons
Dr. Marvin Kym Orthopedic Surgeon

Dr. Marvin Kym has 30 years experience as an Orthopedic Surgeon both in private practice and with regional health systems. He has held privileges at Gritman Medical Center since 1994. Dr. Kym completed medical training at the University of Texas Southwestern Medical School and residency at the University of Kansas School of Medicine-Wichita. Dr. Kym is currently seeing patients at Gritman Orthopedic Surgeons.

I think our patients benefit from the two of us approaching their problems more holistically. We can bring that to this community.Dr. Marvin Kym

Learn how Dr. Marvin Kym is leading the team in expanding access to exceptional orthopedic care.

Sunshine Huffman, ONP-C
Sunshine Huffman, ONP-C Orthopedic Certified Nurse Practitioner

Sunshine Huffman, ONP-C, CNOR, RNFA holds the distinction as the first and only person to be certified as an Orthopedic Certified Nurse Practitioner in Idaho. She has worked in the field of orthopedic surgery for more than 20 years, including in the Orthopedic Surgical Assistant Role. She holds degrees from Gonzaga University and Lewis-Clark State College.

Here at Gritman Medical Center, the orthopedic surgery team is able to care for the smallest concern to a large injury, we excel at total joint replacement, revision surgery as well as sports injuries for chronic processes that may need surgical care.”Sunshine Huffman, ONP-C

Learn how Sunshine Huffman serves patients as the only orthopedic nurse practitioner in the region.

Patient Testimonials

Rex DavisRex Davis
15:50 27 Nov 23
I send Dr Kym when he did both knees in 2019 in Lewiston Idaho. I can say it was well worth all effort. He told me he would do the knees but I had to promise to try to get my weight down from 310 and I can tell him that because of my mobility I am now down to 213lbs and slowly still dropping. I have dropped long acting insulin, no more ozimpic and a a1c of 6.0 .Thank you so much for the great knees . I can hunt, hick , and do some things I thought I had lost for good .
Le Ann WilsonLe Ann Wilson
16:02 19 Sep 23
I broke my femur in June 2021 and underwent surgery to attach a plate and several screws to my thighbone and knee. The operation was not performed by Dr. Kym. Three screws near my knee were the cause of constant pain and discomfort, and I decided to have the hardware removed. The orthopedic surgeon who repaired by femur was reluctant to remove the plate/screws, so I contacted Dr. Kym. On August 14, 2023, Dr. Kym removed the hardware - I felt immediate relief! The 45-minute day surgery (Gritman Medical Center. Moscow) was a breeze; I was admitted to the hospital at 6:00 AM; the surgery took place at 7:30 on the dot; and I was discharged before 11:00 AM. Five stars!
Sierra ValentineSierra Valentine
21:31 25 Aug 23
Best experience ever with a RubyShe was so sweet and accommodating of my style and went far above and beyond my expectations. Making me feel welcome, seen, listened to; she was so gentle with the much needed arm cleaning and application of this work of art. She even offered me glitter when I asked for a “very loud rainbow cast”, simply because she could tell I needed it. She didn’t make me feel self conscious in any way about me smelling weird and having dirt between my fingers from having the temporary gigantic cast I received from the ER.Give this girl a raise, she deserves it and give her commission on the glitter casts too because she knows what she’s doing, she does it well and is humble but extraordinary artist.I would love to have more people like Ruby involved in my treatment squad. Maybe consider cloning her or at the very least she could be Chief Officer of Glitter and Glamour.
Kanghoon LeeKanghoon Lee
21:15 06 Apr 23
Staffs are very nice and willing to help as much as they can. Dr Kym was so nice to explain about the shoulder impingement syndrome to me. Facility is brand new building and the equipments are new.
Darliss BardwellDarliss Bardwell
18:13 23 Jan 23
Dr. Kym did a knee replacement surgery for me. He explained things thoroughly and even used some drawings to explain something I had a question about. His entire staff was friendly and professional. I would highly recommend Dr. Kym.

Gritman’s Orthopedic Care Program also serves patients from Inland Orthopaedic Surgery.

Rehabilitation protocols for Dr. Hazelwood, Dr. Taylor and Dr. Tingstad.

Orthopedic Healing Expertise and Compassion Patient Experiences

Partnering with your primary care provider, our orthopedic care team combines experienced surgeons with patient education classes, advanced technology, diagnostic imaging, pain management and physical therapy — building a comprehensive program to help you work, play and live your life to the fullest.

Holly Hall

Holly Hall, RN

“From the minute that you walk into Gritman, you are greeted with a smile and someone welcoming you and introducing themselves.”
Nancy Lyle

A New Lease on Life

Orthopedic surgery, therapy help longtime community member.
Rebecca Dail

Rebecca Dail, RN

"It's wonderful to see people going forward with hope that they're going to be walking again."
Gritman Orthopedic Surgeons
2301 W. A St.
Moscow, ID 83843