Dr. David Allmacher, M.D.
Contact & Location
406-721-4436
Missoula, MT 59808
Dr. Allmacher performs more knee replacement procedures than 89% of orthopedic surgeons in Montana, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #3 of 29 ranked knee surgeons in Montana.
About Dr. Allmacher
Practice. Dr. David Allmacher is a board-certified orthopedic surgeon practicing in Missoula, Montana. The latest annual CMS data records 154 knee replacements and 77 hip replacements, 231 procedures in all. That is #3 in Montana for knee replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 149 procedures a year to 231, up 55%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 154 procedures is more than 3x the national average of 45. That is #157 nationally.
Local context. Missoula has 9 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 57 | 92 |
| 2014 | 52 | 100 |
| 2015 | 58 | 109 |
| 2016 | 78 | 121 |
| 2017 | 107 | 139 |
| 2018 | 97 | 143 |
| 2019 | 82 | 147 |
| 2020 | 65 | 121 |
| 2021 | 97 | 132 |
| 2022 | 67 | 174 |
| 2023 | 67 | 180 |
| 2024 | 77 | 154 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 25% to 33% for hip replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Allmacher Compares
Procedure volume compared to the Montana state average.
Volume Trend Analysis
Dr. Allmacher's Medicare-recorded procedure volume has trended upward over 12 years, increasing 55% from 149 procedures in 2013 to 231 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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Allmacher
How does Dr. Allmacher's procedure volume compare to other Montana surgeons?
Dr. Allmacher has performed 231 Medicare-verified joint replacement procedures. This is more than 2x the Montana average of 81 procedures per surgeon. Dr. Allmacher ranks #3 out of 39 orthopedic surgeons in Montana.
What types of joint replacement does Dr. Allmacher perform?
Dr. Allmacher's Medicare data shows procedures in knee replacement (154 cases) and hip replacement (77 cases).
How experienced is Dr. Allmacher with knee replacement surgery?
Dr. Allmacher ranks #3 in Montana for knee replacement with 154 Medicare-verified procedures. This high ranking among 39 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Allmacher in Missoula?
Yes. There are 9 orthopedic surgeons in Missoula 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 Montana surgeons.
What does the Medicare data for Dr. Allmacher represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Allmacher's total volume across all insurers at roughly 780 to 980 procedures against the 231 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Allmacher's procedure volume changed over time?
Yes. Dr. Allmacher's Medicare-recorded volume has increased from 149 procedures in 2013 to 231 in the most recent data, a 55% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 247 procedures in 2023.
Does Dr. Allmacher perform more than one type of joint replacement?
Yes. Dr. Allmacher's Medicare data shows procedures in knee replacement (154 cases), hip replacement (77 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Allmacher affiliated with?
According to CMS facility affiliation data, Dr. Allmacher is affiliated with St Patrick Hospital, Community Medical Center, Providence St Joseph Medical Center, St Luke Community Hospital, St Peters Health.
How does Dr. Allmacher compare to other orthopedic surgeons in Missoula?
Among the 9 orthopedic surgeons in Missoula, Dr. Allmacher ranks #1 by total Medicare procedure volume. Dr. Allmacher has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Allmacher practices?
St Patrick Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Community Medical Center (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Providence St Joseph Medical Center (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 Missoula, Montana
Dr. Allmacher's 231 Medicare procedures are above the Missoula average of 121. The table below compares verified procedure volumes for orthopedic surgeons practicing in Missoula.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Mark Channer | 181 | Hip, Knee |
| Dr. Daniel Whiting | 167 | Hip, Knee |
| Dr. Gary Willstein | 97 | Hip, Knee, Shoulder |
| Dr. Christopher Price | 80 | Hip, Knee, Shoulder |
| Dr. Larry Stayner | 49 | Knee, Shoulder |
| Dr. Justin Jacobson | 44 | Shoulder |
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.