Dr. Akira Yamamoto, MD
Contact & Location
650-934-7111
Mountain View, CA 94040
Dr. Yamamoto performs more knee replacement procedures than 84% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #74 of 491 ranked knee surgeons in California.
About Dr. Yamamoto
Dr. Akira Yamamoto is a board-certified orthopedic surgeon practicing in Mountain View, California. A Medicare provider since 2010, Dr. Yamamoto performed 82 Medicare-verified knee replacements (#74 in California) and 52 hip replacements in the latest annual CMS data, for a combined total of 134 procedures.
In California, Dr. Yamamoto performs above the state average in knee (82 vs 47), above the state average in hip (52 vs 41).
Dr. Yamamoto's reported Medicare volume is split between knee replacements (82 cases) and hip replacements (52 cases).
Mountain View is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Mountain View area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Yamamoto extend back to 2014, covering 11 years of data. Over that period, recorded procedure volume increased from 20 to 134 in the most recent data, a 570% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,612 knee replacement surgeons tracked nationally, Dr. Yamamoto's 82 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 | 20 |
| 2015 | 11 | 23 |
| 2016 | 21 | 18 |
| 2017 | 22 | 27 |
| 2018 | 33 | 23 |
| 2019 | 22 | 42 |
| 2020 | 29 | 48 |
| 2021 | 42 | 40 |
| 2022 | 35 | 68 |
| 2023 | 35 | 70 |
| 2024 | 52 | 82 |
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. Yamamoto Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Yamamoto's Medicare-recorded procedure volume has trended upward over 11 years, increasing 570% from 20 procedures in 2014 to 134 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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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. Yamamoto
How does Dr. Yamamoto's procedure volume compare to other California surgeons?
Dr. Yamamoto has performed 134 Medicare-verified joint replacement procedures. This is significantly above the California average of 68 procedures per surgeon. Dr. Yamamoto ranks #82 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Yamamoto perform?
Dr. Yamamoto's Medicare data shows procedures in knee replacement (82 cases) and hip replacement (52 cases).
Are there other orthopedic surgeons near Dr. Yamamoto in Mountain View?
Yes. There are 4 orthopedic surgeons in Mountain View 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. Yamamoto 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. Yamamoto's total volume across all insurers at roughly 450 to 560 procedures against the 134 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. Yamamoto's procedure volume changed over time?
Yes. Dr. Yamamoto's Medicare-recorded volume has increased from 20 procedures in 2014 to 134 in the most recent data, a 570% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 134 procedures in 2024.
Does Dr. Yamamoto perform more than one type of joint replacement?
Yes. Dr. Yamamoto's Medicare data shows procedures in knee replacement (82 cases), hip replacement (52 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Yamamoto affiliated with?
According to CMS facility affiliation data, Dr. Yamamoto is affiliated with El Camino Health, Mills-Peninsula Medical Center.
How does Dr. Yamamoto compare to other orthopedic surgeons in Mountain View?
Among the 4 orthopedic surgeons in Mountain View, Dr. Yamamoto ranks #1 by total Medicare procedure volume. Dr. Yamamoto has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Yamamoto practices?
El Camino Health (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Mills-Peninsula Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Mountain View, California
Dr. Yamamoto's 134 Medicare procedures are above the Mountain View average of 70. The table below compares verified procedure volumes for orthopedic surgeons practicing in Mountain View.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. James Page | 89 | Hip, Knee |
| Dr. Ashish Mittal | 44 | Hip, Knee |
| Dr. Kier Ecklund | 13 | 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.