Dr. Paul Yang, M.D.

Orthopedic Surgery
24 procedures 2 hospitals West Covina, CA

Contact & Location

626-918-6655
Phone: 626-918-6655
Practice phone listed in the NPI registry
1135 S Sunset Ave Ste 200
West Covina, CA 91790
Current practice address per the CMS NPPES registry (self-reported to the registry, last updated February 2024). Registry checked August 2026.
Other locations registered to this NPI:
8700 Beverly Blvd
West Hollywood, CA 90048
10833 Le Conte Ave, Ucla Center For Health Sci Ortho Surg Rm 76-143 Chs
Los Angeles, CA 90095
412 W Carroll Ave Ste 107
Glendora, CA 91741
Additional practice sites listed in the surgeon's own CMS NPPES registry entry. The registry does not record which site a surgeon primarily works from, so call ahead to confirm where an appointment takes place.
NPI: 1245658772
Credentials: M.D.
Active Medicare provider (NPI verified)
12 years of practice experience
Licensed M.D.
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps
National Comparison by Procedure
Knee 24 vs 45 national avg (6,612 surgeons)

Dr. Yang performs more knee replacement procedures than 38% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #304 of 491 ranked knee surgeons in California.

About Dr. Yang

Dr. Paul Yang is a board-certified orthopedic surgeon practicing in West Covina, California. A Medicare provider since 2014, Dr. Yang performed 24 Medicare-verified knee replacements in the latest annual CMS data, ranking #304 in California.

In California, Dr. Yang performs below the state average in knee (24 vs 47).

Dr. Yang's Medicare data shows a focused knee replacement practice with 24 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.

Dr. Yang is the only orthopedic surgeon in West Covina represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.

Dr. Yang first appears in the Medicare dataset in 2023. With 2 years of recorded data, the longitudinal trend is still developing.

Dr. Yang's 24 knee replacement procedures is below the national average of 45 among 6,612 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Knee Replacement
24 verified cases
#304 in California
Estimated 2024 total: 90 – 100 procedures (all insurers)
Medicare fee-for-service share of national volume in 2024: 23% to 28% for knee replacement
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. Yang Compares

Procedure volume compared to the California state average.

Knee Below Avg
24 Avg: 47
Dr. Yang California Average

Volume Trend Analysis

Dr. Yang has 2 years of Medicare procedure data beginning in 2023. Additional years of data will provide a clearer picture of volume trends.

Years of Data 2
2024 Volume 24
Peak Volume 24 (2024)
Trend Developing

Hospital Affiliations & Quality

H
Emanate Health Inter-Community Hospital
1/5
Covina, CA
Similar to national avg
H
Emanate Health Foothill Presbyterian Hospital
3/5
Glendora, CA
Low case volume

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. Yang

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

Dr. Yang has performed 24 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. Yang ranks #435 out of 613 orthopedic surgeons in California.

What types of joint replacement does Dr. Yang perform?

Dr. Yang's reported Medicare volume is focused on knee replacement, with 24 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.

Where is Dr. Yang's practice located?

Dr. Yang practices in West Covina, California. The office is located at 1135 S Sunset Ave Ste 200, West Covina, CA 91790. Patients in the surrounding area can consult Dr. Yang for joint replacement evaluation.

What does the Medicare data for Dr. Yang 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. Yang's total volume across all insurers at roughly 90 to 100 procedures against the 24 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.

Which hospitals is Dr. Yang affiliated with?

According to CMS facility affiliation data, Dr. Yang is affiliated with Emanate Health Inter-Community Hospital, Emanate Health Foothill Presbyterian Hospital.

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

Emanate Health Inter-Community Hospital (1 out of 5 CMS stars, hip/knee complication rate similar to national average); Emanate Health Foothill Presbyterian Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

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. Paul Yang, M.D. -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-paul-yang-west-covina.html

Link: https://orthoprocedures.com/surgeons/ca/dr-paul-yang-west-covina.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.