Dr. Micah Adamson, MD
Contact & Location
310-319-1234
Los Angeles, CA 90024
Santa Monica, CA 90404
Dr. Adamson performs more knee replacement procedures than 79% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #99 of 491 ranked knee surgeons in California.
About Dr. Adamson
Dr. Micah Adamson is a board-certified orthopedic surgeon practicing in Los Angeles, California. A Medicare provider since 2015, Dr. Adamson performed 66 Medicare-verified knee replacements (#99 in California) and 32 hip replacements in the latest annual CMS data, for a combined total of 98 procedures.
In California, Dr. Adamson performs above the state average in knee (66 vs 47), below the state average in hip (32 vs 41).
Dr. Adamson's reported Medicare volume is split between knee replacements (66 cases) and hip replacements (32 cases).
Beyond general orthopedic surgery, Dr. Adamson holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Los Angeles is home to 34 orthopedic surgeons in the current Medicare dataset. Patients in the Los Angeles area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Adamson extend back to 2020, covering 5 years of data. Over that period, recorded procedure volume increased from 11 to 98 in the most recent data, a 791% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,612 knee replacement surgeons tracked nationally, Dr. Adamson's 66 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 11 |
| 2021 | 27 | 36 |
| 2022 | 13 | 20 |
| 2023 | 32 | 33 |
| 2024 | 32 | 66 |
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. Adamson Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Adamson's Medicare-recorded procedure volume has trended upward over 5 years, increasing 791% from 11 procedures in 2020 to 98 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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. Adamson
How does Dr. Adamson's procedure volume compare to other California surgeons?
Dr. Adamson has performed 98 Medicare-verified joint replacement procedures. This is in line with the California average of 68 procedures per surgeon. Dr. Adamson ranks #118 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Adamson perform?
Dr. Adamson's Medicare data shows procedures in knee replacement (66 cases) and hip replacement (32 cases).
Are there other orthopedic surgeons near Dr. Adamson in Los Angeles?
Yes. There are 34 orthopedic surgeons in Los Angeles 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. Adamson 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. Adamson's total volume across all insurers at roughly 330 to 410 procedures against the 98 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. Adamson's procedure volume changed over time?
Yes. Dr. Adamson's Medicare-recorded volume has increased from 11 procedures in 2020 to 98 in the most recent data, a 791% increase over 5 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 98 procedures in 2024.
Does Dr. Adamson perform more than one type of joint replacement?
Yes. Dr. Adamson's Medicare data shows procedures in knee replacement (66 cases), hip replacement (32 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Adamson affiliated with?
According to CMS facility affiliation data, Dr. Adamson is affiliated with St Anthony North Hospital. Dr. Adamson maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Adamson compare to other orthopedic surgeons in Los Angeles?
Among the 34 orthopedic surgeons in Los Angeles, Dr. Adamson ranks #3 by total Medicare procedure volume. Dr. Adamson is among the highest-volume surgeons in Los Angeles.
What are the quality ratings for hospitals where Dr. Adamson practices?
St Anthony North Hospital (4 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 Los Angeles, California
Dr. Adamson's 98 Medicare procedures are below the Los Angeles average of 113. The table below compares verified procedure volumes for orthopedic surgeons practicing in Los Angeles.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Tiberi | 211 | Hip, Knee |
| Dr. Daniel Oakes | 192 | Hip, Knee |
| Dr. Vishal Hegde | 97 | Hip, Knee |
| Dr. Andrew Spitzer | 71 | Hip, Knee |
| Dr. Adam Sassoon | 62 | Hip, Knee |
| Dr. Nathanael Heckmann | 57 | 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.