Dr. Kourosh Shamlou, M.D.
Contact & Location
562-869-4421
Downey, CA 90241
Dr. Shamlou performs more knee replacement procedures than 31% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #334 of 491 ranked knee surgeons in California.
About Dr. Shamlou
Practice. Dr. Kourosh Shamlou is an orthopedic surgeon practicing in Downey, California. The latest annual CMS data records 21 knee replacements. That is #334 in California for knee replacement. Dr. Shamlou also holds credentials in Orthopaedic Surgery of the Spine. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume peaked at 36 in 2019 and stands at 21 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 21 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Downey has 2 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 | Knee Replacement |
|---|---|
| 2013 | 34 |
| 2014 | 20 |
| 2015 | 24 |
| 2016 | 18 |
| 2017 | 27 |
| 2018 | 19 |
| 2019 | 36 |
| 2020 | 18 |
| 2021 | 16 |
| 2022 | 21 |
| 2023 | 23 |
| 2024 | 21 |
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. 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. Shamlou Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Shamlou's recorded volume peaked at 36 procedures in 2019 and stood at 21 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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. Shamlou
How does Dr. Shamlou's procedure volume compare to other California surgeons?
Dr. Shamlou has performed 21 Medicare-verified joint replacement procedures. The California average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Shamlou ranks #460 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Shamlou perform?
Dr. Shamlou's reported Medicare volume is focused on knee 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. Shamlou in Downey?
Yes. There are 2 orthopedic surgeons in Downey 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. Shamlou 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, which puts Dr. Shamlou's total volume across all insurers at roughly 80 to 90 procedures against the 21 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. Shamlou's procedure volume changed over time?
Dr. Shamlou's Medicare-recorded volume peaked at 36 procedures in 2019 and was 21 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Which hospitals is Dr. Shamlou affiliated with?
According to CMS facility affiliation data, Dr. Shamlou is affiliated with Pih Health Downey Hospital, Pih Health Hospital-Whittier.
What are the quality ratings for hospitals where Dr. Shamlou practices?
Pih Health Downey Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Pih Health Hospital-Whittier (3 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 Downey, California
Dr. Shamlou's 21 Medicare procedures are below the Downey average of 61. The table below compares verified procedure volumes for orthopedic surgeons practicing in Downey.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Vance Eberly | 100 | 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.