Dr. Sanaz Hariri, MD

Orthopedic Surgery
32 procedures 3 hospitals Los Gatos, CA
Latest available Medicare data — updated April 2026
Growing Volume

Contact & Location

Phone: 408-871-1800
Practice phone listed in the NPI registry
800 Pollard Rd Ste C30
Los Gatos, CA 95032
NPI: 1134255888
Credentials: MD
Active Medicare provider (NPI verified)
19 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety, all under $50
National Comparison by Procedure
Knee 32 vs 45 avg (6,599 surgeons)

Dr. Sanaz Hariri is a board-certified orthopedic surgeon practicing in Los Gatos, California. A Medicare provider since 2007, Dr. Hariri has performed 32 Medicare-verified knee replacements, ranking #236 in California.

In California, Dr. Hariri performs below average in knee (32 vs 47 avg).

Dr. Hariri's Medicare data shows a focused knee replacement practice with 32 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.

Los Gatos is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Los Gatos area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Hariri extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 15 to 32 in the most recent data, a 113% increase. This sustained growth reflects an expanding joint replacement practice.

Dr. Hariri's 32 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Knee Replacement
32 verified cases
#236 in California
Estimated total: 90 – 100 procedures (all insurers)
Based on Medicare FFS representing 33–37% of national joint replacement volume
How is this estimated?

Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.

How Dr. Hariri Compares

Procedure volume compared to the California state average.

Knee Below Avg
32 Avg: 47
Dr. Hariri California 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.

Years of Data 12
2024 Volume 32
Peak Volume 41 (2022)
Trend Growing

Hospital Affiliations & Quality

H
El Camino Health
4/5
Mountain View, CA
Similar to national avg
H
Stanford Health Care
5/5
Stanford, CA
Similar to national avg
H
Good Samaritan Hospital
2/5
San Jose, CA
Similar to national avg

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:

Knee Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:

Week 1-2 Walking with assistive device. Knee bending exercises begin immediately. Ice therapy and elevation for swelling control.
Week 3-6 Increased range of motion (target 90 degrees). Walking longer distances. Physical therapy intensifies with strengthening exercises.
Week 7-12 Most patients walk without assistive devices. Resume driving and desk work. Continue PT for strength and flexibility.
Month 4-6 Near-full recovery. Resume most recreational activities. Some swelling and stiffness may persist but continues improving.

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 the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Hariri's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 32 procedures shown here.

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.

SurgeonProceduresSpecialties
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.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Sanaz Hariri, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-sanaz-hariri-los-gatos.html

Link: https://orthoprocedures.com/surgeons/ca/dr-sanaz-hariri-los-gatos.html

Data source: CMS Medicare Part B Provider Utilization & Payment Data. Full methodology | Open Data API

Important: Rankings are based solely on Medicare procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately one-third to 40% of all joint replacement procedures nationwide. Always consult with healthcare providers to make informed decisions about your care.