#11 Knee
#12 Hip
#17 Shoulder

Dr. Marvin Kym, MD

Orthopedic Surgery
112 procedures 5 hospitals Moscow, ID
Latest available Medicare data — updated April 2026
Rising Star
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Hip 37 vs 36 avg (4,526 surgeons)
Knee 57 vs 45 avg (6,720 surgeons)
Shoulder 18 vs 28 avg (2,092 surgeons)

Dr. Marvin Kym is a board-certified orthopedic surgeon practicing in Moscow, Idaho. A Medicare provider since 2005, Dr. Kym has completed 57 knee replacements (#11 in Idaho), 37 hip replacements, and 18 shoulder replacements, totaling 112 Medicare-verified procedures.

In Idaho, Dr. Kym performs above average in knee (57 vs 39 avg), near average in hip (37 vs 31 avg), below average in shoulder (18 vs 23 avg).

Dr. Kym performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (57 cases), followed by hip replacements (37) and shoulder replacements (18).

Moscow is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Moscow area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs. Dr. Kym also maintains hospital privileges in ID and WA, indicating a regional practice that extends beyond Idaho.

Medicare records for Dr. Kym extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 93 to 112 in the most recent data, a 20% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Kym's 57 verified procedures is above the national average of 45.

Verified Medicare Cases

Knee Replacement
57 verified cases
#11 in Idaho
Hip Replacement
37 verified cases
#12 in Idaho
Shoulder Replacement
18 verified cases
#17 in Idaho
Estimated total: 300 – 340 procedures (all insurers)
Based on Medicare FFS representing 33–37% of national joint replacement volume
How is this estimated?

Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.

How Dr. Kym Compares

Procedure volume compared to the Idaho state average.

Hip Average
37 Avg: 31
Knee High
57 Avg: 39
Shoulder Below Avg
18 Avg: 23
Dr. Kym Idaho Average

Contact & Location

Phone: 208-883-1135
2301 W A St
Moscow, ID 83843
NPI: 1316932601
Credentials: MD
Active Medicare provider (NPI verified)
21 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps

Volume Trend Analysis

Dr. Kym's Medicare-recorded procedure volume has trended upward over 11 years, increasing 20% from 93 procedures in 2013 to 112 in the most recent data.

Years of Data 11
2023 Volume 112
Peak Volume 131 (2017)
Trend Growing

Hospital Affiliations & Quality

H
Gritman Medical Center
★★★☆☆
Moscow, ID
Low case volume
H
Syringa General Hospital
★★★★☆
Grangeville, ID
H
St Mary'S Hospital
Cottonwood, ID
H
Tri-State Memorial Hospital
★★★☆☆
Clarkston, WA
Low case volume
H
St Joseph Regional Medical Center
★★☆☆☆
Lewiston, ID
Low case volume

Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.

Knee Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:

Week 1-2 Walking with assistive device. Knee bending exercises begin immediately. Ice therapy and elevation for swelling control.
Week 3-6 Increased range of motion (target 90 degrees). Walking longer distances. Physical therapy intensifies with strengthening exercises.
Week 7-12 Most patients walk without assistive devices. Resume driving and desk work. Continue PT for strength and flexibility.
Month 4-6 Near-full recovery. Resume most recreational activities. Some swelling and stiffness may persist but continues improving.

Individual recovery varies based on overall health, age, and adherence to physical therapy. View full knee replacement recovery guide and product recommendations

Frequently Asked Questions About Dr. Kym

How does Dr. Kym's procedure volume compare to other Idaho surgeons?

Dr. Kym has performed 112 Medicare-verified joint replacement procedures. This is significantly above the Idaho average of 57 procedures per surgeon. Dr. Kym ranks #10 out of 69 orthopedic surgeons in Idaho.

What types of joint replacement does Dr. Kym perform?

Dr. Kym performs all three major joint replacement procedures: knee replacement (57 cases), hip replacement (37 cases), shoulder replacement (18 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.

How experienced is Dr. Kym with knee replacement surgery?

Dr. Kym ranks #11 in Idaho for knee replacement with 57 Medicare-verified procedures. This high ranking among 69 state surgeons indicates significant experience with this specific procedure.

Are there other orthopedic surgeons near Dr. Kym in Moscow?

Yes. There are 3 orthopedic surgeons in Moscow in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all Idaho surgeons.

What does the Medicare data for Dr. Kym represent?

The procedure counts shown are based on the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Kym's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 112 procedures shown here.

Has Dr. Kym's procedure volume changed over time?

Yes. Dr. Kym's Medicare-recorded volume has increased from 93 procedures in 2013 to 112 in the most recent data, a 20% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 131 procedures in 2017.

Does Dr. Kym perform more than one type of joint replacement?

Yes. Dr. Kym's Medicare data shows procedures in knee replacement (57 cases), hip replacement (37 cases), shoulder replacement (18 cases). Performing all three major joint replacements places Dr. Kym among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.

Which hospitals is Dr. Kym affiliated with?

According to CMS facility affiliation data, Dr. Kym is affiliated with Gritman Medical Center, Syringa General Hospital, St Mary'S Hospital, Tri-State Memorial Hospital, St Joseph Regional Medical Center. Dr. Kym maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.

How does Dr. Kym compare to other orthopedic surgeons in Moscow?

Among the 3 orthopedic surgeons in Moscow, Dr. Kym ranks #1 by total Medicare procedure volume. Dr. Kym has the highest verified Medicare volume in the city.

What are the quality ratings for hospitals where Dr. Kym practices?

Gritman Medical Center (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Syringa General Hospital (4 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Moscow, Idaho

Dr. Kym's 112 Medicare procedures are above the Moscow average of 61. The table below compares verified procedure volumes for orthopedic surgeons practicing in Moscow.

SurgeonProceduresSpecialties
Dr. Mathew Taylor 48 Hip, Knee
Dr. Edwin Tingstad 23 Knee

Patient Reviews & Ratings

OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:

These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Marvin Kym, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/id/dr-marvin-kym-moscow.html

Link: https://orthoprocedures.com/surgeons/id/dr-marvin-kym-moscow.html

Data source: CMS Medicare Part B Provider Utilization & Payment Data. Full methodology | Open Data API

Important: Rankings are based solely on Medicare procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately one-third to 40% of all joint replacement procedures nationwide. Always consult with healthcare providers to make informed decisions about your care.