Dr. Paul Charpentier, MD
Contact & Location
707-459-6115
Willits, CA 95490
About Dr. Charpentier
Dr. Paul Charpentier is a board-certified orthopedic surgeon practicing in Willits, California. A Medicare provider since 2012, Dr. Charpentier completed 96 knee replacements (#56 in California), 82 hip replacements, and 27 shoulder replacements in the latest annual CMS data, totaling 205 Medicare-verified procedures.
In California, Dr. Charpentier performs well above the state average in knee (96 vs 47), well above the state average in hip (82 vs 41), near the state average in shoulder (27 vs 31).
Dr. Charpentier performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (96 cases), followed by hip replacements (82) and shoulder replacements (27).
Willits is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Willits area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Charpentier extend back to 2018, covering 7 years of data. Over that period, recorded procedure volume increased from 11 to 205 in the most recent data, a 1764% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Charpentier's 96 verified procedures is more than 2x the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement | Shoulder Replacement |
|---|---|---|---|
| 2013 | 0 | 0 | 0 |
| 2014 | 0 | 0 | 0 |
| 2015 | 0 | 0 | 0 |
| 2016 | 0 | 0 | 0 |
| 2017 | 0 | 0 | 0 |
| 2018 | 11 | 0 | 0 |
| 2019 | 28 | 40 | 0 |
| 2020 | 20 | 30 | 0 |
| 2021 | 33 | 42 | 19 |
| 2022 | 53 | 63 | 29 |
| 2023 | 63 | 78 | 25 |
| 2024 | 82 | 96 | 27 |
Verified Medicare Cases
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. Charpentier Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Charpentier's Medicare-recorded procedure volume has trended upward over 7 years, increasing 1764% from 11 procedures in 2018 to 205 in the most recent data.
Hospital Affiliations & Quality
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.
Patient Resources: Preparing for Knee Replacement
If you are considering knee replacement surgery, these evidence-based guides can help you prepare and recover:
An overview of current surgical approaches including robotic-assisted and minimally invasive techniques, implant options, and expected outcomes.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
Knee Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:
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. Charpentier
How does Dr. Charpentier's procedure volume compare to other California surgeons?
Dr. Charpentier has performed 205 Medicare-verified joint replacement procedures. This is more than 3x the California average of 68 procedures per surgeon. Dr. Charpentier ranks #36 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Charpentier perform?
Dr. Charpentier performs all three major joint replacement procedures: knee replacement (96 cases), hip replacement (82 cases), shoulder replacement (27 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Are there other orthopedic surgeons near Dr. Charpentier in Willits?
Yes. There are 3 orthopedic surgeons in Willits 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 California surgeons.
What does the Medicare data for Dr. Charpentier 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. Charpentier's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 205 procedures shown here.
Has Dr. Charpentier's procedure volume changed over time?
Yes. Dr. Charpentier's Medicare-recorded volume has increased from 11 procedures in 2018 to 205 in the most recent data, a 1764% increase over 7 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 205 procedures in 2024.
Does Dr. Charpentier perform more than one type of joint replacement?
Yes. Dr. Charpentier's Medicare data shows procedures in knee replacement (96 cases), hip replacement (82 cases), shoulder replacement (27 cases). Performing all three major joint replacements places Dr. Charpentier among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Charpentier affiliated with?
According to CMS facility affiliation data, Dr. Charpentier is affiliated with Adventist Health Howard Memorial, Adventist Health Ukiah Valley, Adventist Health Mendocino Coast, Adventist Health Clearlake.
How does Dr. Charpentier compare to other orthopedic surgeons in Willits?
Among the 3 orthopedic surgeons in Willits, Dr. Charpentier ranks #1 by total Medicare procedure volume. Dr. Charpentier has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Charpentier practices?
Adventist Health Howard Memorial (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Adventist Health Ukiah Valley (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Adventist Health Mendocino Coast (1 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 Willits, California
Dr. Charpentier's 205 Medicare procedures are above the Willits average of 101. The table below compares verified procedure volumes for orthopedic surgeons practicing in Willits.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. William Bowen | 71 | Hip, Knee |
| Dr. Jeremiah Dawson | 27 | Hip, Knee |
Patient Resources & Verification
Research reviews, verify credentials, and check official quality data through these trusted sources:
Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.