Dr. Michael Lee, M.D.

Orthopedic Surgery
12 procedures 1 hospital West Hills, CA
Latest available Medicare data — updated April 2026

Contact & Location

7345 Medical Center Dr
West Hills, CA 91307
NPI: 1013994896
Credentials: M.D.
Active Medicare provider
Find Practice on Google Maps
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety, all under $50
National Comparison by Procedure
Knee 12 vs 45 avg (6,599 surgeons)

Dr. Michael Lee is a board-certified orthopedic surgeon practicing in West Hills, California. Dr. Lee has performed 12 Medicare-verified knee replacements, ranking #461 in California.

In California, Dr. Lee performs below average in knee (12 vs 47 avg).

Dr. Lee's Medicare data shows a focused knee replacement practice with 12 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.

West Hills is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the West Hills area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Lee's Medicare data spans 10 years, beginning in 2013. Volume peaked at 33 procedures in 2017 before settling at 12 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Dr. Lee's 12 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
12 verified cases
#461 in California
Estimated total: 30 – 40 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. Lee Compares

Procedure volume compared to the California state average.

Knee Below Avg
12 Avg: 47
Dr. Lee California Average

Volume Trend Analysis

Dr. Lee's recorded volume peaked at 33 procedures in 2017 and stood at 12 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 10
2024 Volume 12
Peak Volume 33 (2017)
Trend Declining

Hospital Affiliations & Quality

H
Ucla West Valley Medical Center
2/5
West Hills, 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. Lee

How does Dr. Lee's procedure volume compare to other California surgeons?

Dr. Lee has performed 12 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. Lee ranks #578 out of 613 orthopedic surgeons in California.

What types of joint replacement does Dr. Lee perform?

Dr. Lee's reported Medicare volume is focused on knee replacement, with 12 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Are there other orthopedic surgeons near Dr. Lee in West Hills?

Yes. There are 6 orthopedic surgeons in West Hills 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. Lee 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. Lee's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 12 procedures shown here.

Has Dr. Lee's procedure volume changed over time?

Dr. Lee's Medicare-recorded volume peaked at 33 procedures in 2017 and was 12 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. Lee affiliated with?

According to CMS facility affiliation data, Dr. Lee is affiliated with Ucla West Valley Medical Center.

How does Dr. Lee compare to other orthopedic surgeons in West Hills?

Among the 6 orthopedic surgeons in West Hills, Dr. Lee ranks #5 by total Medicare procedure volume. The highest-volume surgeon in West Hills has 87 verified Medicare procedures.

What are the quality ratings for hospitals where Dr. Lee practices?

Ucla West Valley Medical Center (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 West Hills, California

Dr. Lee's 12 Medicare procedures are below the West Hills average of 37. The table below compares verified procedure volumes for orthopedic surgeons practicing in West Hills.

SurgeonProceduresSpecialties
Dr. Nirav Shah 87 Hip, Knee
Dr. Sumit Rana 70 Hip, Knee
Dr. David Feingold 25 Knee
Dr. Aneet Toor 17 Shoulder
Dr. William Rumack 12 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.

Cite This Data

APA: OrthoProcedures. (2026). Dr. Michael Lee, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-michael-lee-west-hills.html

Link: https://orthoprocedures.com/surgeons/ca/dr-michael-lee-west-hills.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.