#26 in Idaho
Hip

Dr. Gregory Dietrich, MD

Orthopedic Surgery
21 procedures 5 hospitals Lewiston, ID
Latest available Medicare data — updated April 2026
Rising Star
Hip replacement recovery kit Essentials every patient wishes they bought first
National Comparison by Procedure
Hip 21 vs 36 avg (4,526 surgeons)

Dr. Gregory Dietrich is a board-certified orthopedic surgeon practicing in Lewiston, Idaho. A Medicare provider since 2005, Dr. Dietrich has performed 21 Medicare-verified hip replacements, ranking #26 in Idaho.

In Idaho, Dr. Dietrich performs below average in hip (21 vs 31 avg).

Dr. Dietrich's Medicare data shows a focused hip replacement practice with 21 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.

Beyond general orthopedic surgery, Dr. Dietrich holds additional credentials in Orthopaedic Surgery of the Spine, reflecting subspecialty training that may benefit patients with complex joint conditions.

Lewiston is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Lewiston area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs. Dr. Dietrich also maintains hospital privileges in ID and WA, indicating a regional practice that extends beyond Idaho.

Medicare records for Dr. Dietrich extend back to 2013, covering 9 years of data. Over that period, recorded procedure volume increased from 14 to 21 in the most recent data, a 50% increase. This sustained growth reflects an expanding joint replacement practice.

Dr. Dietrich's 21 hip replacement procedures is below the national average of 36 among 4,526 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Hip Replacement
21 verified cases
#26 in Idaho
Estimated total: 60 – 60 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. Dietrich Compares

Procedure volume compared to the Idaho state average.

Hip Below Avg
21 Avg: 31
Dr. Dietrich Idaho Average

Contact & Location

Phone: 208-743-3523
320 Warner Drive
Lewiston, ID 83501
NPI: 1306831698
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. Dietrich's Medicare-recorded procedure volume has trended upward over 9 years, increasing 50% from 14 procedures in 2013 to 21 in the most recent data.

Years of Data 9
2023 Volume 21
Peak Volume 26 (2022)
Trend Growing

Hospital Affiliations & Quality

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

Hip Replacement Recovery Overview

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

Week 1-2 Walking with assistive device (walker or cane). Gentle range-of-motion exercises begin. Most patients can manage basic self-care.
Week 3-6 Transition to walking independently. Resume driving short distances. Physical therapy focuses on strength and balance.
Week 7-12 Return to most daily activities and light exercise. Stair climbing improves. Many patients return to desk work.
Month 4-6 Full recovery for most patients. Resume recreational activities, golf, swimming, and low-impact exercise.

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

Frequently Asked Questions About Dr. Dietrich

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

Dr. Dietrich has performed 21 Medicare-verified joint replacement procedures. The Idaho average is 57 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Dietrich ranks #56 out of 69 orthopedic surgeons in Idaho.

What types of joint replacement does Dr. Dietrich perform?

Dr. Dietrich's reported Medicare volume is focused on hip replacement, with 21 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Dietrich in Lewiston?

Yes. There are 5 orthopedic surgeons in Lewiston 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. Dietrich 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. Dietrich's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 21 procedures shown here.

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

Yes. Dr. Dietrich's Medicare-recorded volume has increased from 14 procedures in 2013 to 21 in the most recent data, a 50% increase over 9 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 26 procedures in 2022.

Which hospitals is Dr. Dietrich affiliated with?

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

How does Dr. Dietrich compare to other orthopedic surgeons in Lewiston?

Among the 5 orthopedic surgeons in Lewiston, Dr. Dietrich ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Lewiston has 115 verified Medicare procedures.

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

St Joseph Regional Medical Center (2 out of 5 CMS stars, insufficient case volume for complication rate comparison); Tri-State Memorial Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Lewiston, Idaho

Dr. Dietrich's 21 Medicare procedures are below the Lewiston average of 80. The table below compares verified procedure volumes for orthopedic surgeons practicing in Lewiston.

SurgeonProceduresSpecialties
Dr. John Jelinek 115 Hip, Knee, Shoulder
Dr. Regan Hansen 111 Hip, Knee, Shoulder
Dr. Bryan Beardsley 97 Hip, Knee, Shoulder
Dr. Dewayne Weaver 54 Hip, Knee, Shoulder

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. Gregory Dietrich, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/id/dr-gregory-dietrich-lewiston.html

Link: https://orthoprocedures.com/surgeons/id/dr-gregory-dietrich-lewiston.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.