Dr. Sanaz Hariri, M.D.
Contact & Location
408-871-1800
Los Gatos, CA 95032
Dr. Hariri performs more knee replacement procedures than 51% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #236 of 491 ranked knee surgeons in California.
About Dr. Hariri
Practice. Dr. Sanaz Hariri is a board-certified orthopedic surgeon practicing in Los Gatos, California. The latest annual CMS data records 32 knee replacements. That is #236 in California for knee replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 15 procedures a year to 32, up 113%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 32 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Los Gatos has 5 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 | 15 |
| 2014 | 30 |
| 2015 | 29 |
| 2016 | 38 |
| 2017 | 37 |
| 2018 | 35 |
| 2019 | 31 |
| 2020 | 39 |
| 2021 | 32 |
| 2022 | 41 |
| 2023 | 36 |
| 2024 | 32 |
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. Hariri Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Hariri's Medicare-recorded procedure volume has trended upward over 12 years, increasing 113% from 15 procedures in 2013 to 32 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.
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.
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. Hariri
How does Dr. Hariri's procedure volume compare to other California surgeons?
Dr. Hariri has performed 32 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. Hariri ranks #384 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Hariri perform?
Dr. Hariri's reported Medicare volume is focused on knee replacement, with 32 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Hariri in Los Gatos?
Yes. There are 5 orthopedic surgeons in Los Gatos 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. Hariri 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. Hariri's total volume across all insurers at roughly 110 to 140 procedures against the 32 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. Hariri's procedure volume changed over time?
Yes. Dr. Hariri's Medicare-recorded volume has increased from 15 procedures in 2013 to 32 in the most recent data, a 113% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 41 procedures in 2022.
Which hospitals is Dr. Hariri affiliated with?
According to CMS facility affiliation data, Dr. Hariri is affiliated with El Camino Health, Stanford Health Care, Good Samaritan Hospital.
How does Dr. Hariri compare to other orthopedic surgeons in Los Gatos?
Among the 5 orthopedic surgeons in Los Gatos, Dr. Hariri ranks #2 by total Medicare procedure volume. Dr. Hariri is among the highest-volume surgeons in Los Gatos.
What are the quality ratings for hospitals where Dr. Hariri practices?
El Camino Health (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Stanford Health Care (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Good Samaritan Hospital (2 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 Los Gatos, California
Dr. Hariri's 32 Medicare procedures are below the Los Gatos average of 39. The table below compares verified procedure volumes for orthopedic surgeons practicing in Los Gatos.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Raj Kullar | 101 | Hip, Knee, Shoulder |
| Dr. Terence Delaney | 27 | Hip, Knee |
| Dr. Ian Barrett | 24 | Knee, Shoulder |
| Dr. Nathaniel Cohen | 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.