#42 Knee
#124 Hip

Dr. William Whang, MD

Orthopedic Surgery
136 procedures 2 hospitals Modesto, CA
Latest available Medicare data — updated April 2026
Rising Star Top 10% Nationally
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety — under $50 essentials
National Comparison by Procedure
Hip 36 vs 36 avg (4,526 surgeons)
Knee 100 vs 45 avg (6,720 surgeons)

Dr. William Whang is a board-certified orthopedic surgeon practicing in Modesto, California. A Medicare provider since 2006, Dr. Whang has performed 100 Medicare-verified knee replacements (#42 in California) and 36 hip replacements, for a combined total of 136 procedures.

In California, Dr. Whang performs well above average in knee (100 vs 45 avg), near average in hip (36 vs 41 avg).

Dr. Whang's reported Medicare volume is split between knee replacements (100 cases) and hip replacements (36 cases).

Modesto is home to 11 orthopedic surgeons in the current Medicare dataset. Patients in the Modesto area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Medicare records for Dr. Whang extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 50 to 136 in the most recent data, a 172% increase. This sustained growth reflects an expanding joint replacement practice.

Among 6,720 knee replacement surgeons tracked nationally, Dr. Whang's 100 verified procedures is more than 2x the national average of 45.

Verified Medicare Cases

Knee Replacement
100 verified cases
#42 in California
Hip Replacement
36 verified cases
#124 in California
Estimated total: 370 – 410 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. Whang Compares

Procedure volume compared to the California state average.

Hip Average
36 Avg: 41
Knee Very High
100 Avg: 45
Dr. Whang California Average

Contact & Location

Phone: 209-550-4725
1409 E Briggsmore Ave
Modesto, CA 95355
NPI: 1790734192
Credentials: MD
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Contact information available
Find Practice on Google Maps

Volume Trend Analysis

Dr. Whang's Medicare-recorded procedure volume has trended upward over 11 years, increasing 172% from 50 procedures in 2013 to 136 in the most recent data.

Years of Data 11
2023 Volume 136
Peak Volume 141 (2022)
Trend Growing

Hospital Affiliations & Quality

H
Memorial Medical Center
★★☆☆☆
Modesto, CA
Similar to national avg
H
Adventist Health Sonora
★★★☆☆
Sonora, 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.

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. Whang

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

Dr. Whang has performed 136 Medicare-verified joint replacement procedures. This is more than 2x the California average of 65 procedures per surgeon. Dr. Whang ranks #62 out of 608 orthopedic surgeons in California.

What types of joint replacement does Dr. Whang perform?

Dr. Whang's Medicare data shows procedures in knee replacement (100 cases) and hip replacement (36 cases).

Are there other orthopedic surgeons near Dr. Whang in Modesto?

Yes. There are 11 orthopedic surgeons in Modesto 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. Whang 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. Whang's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 136 procedures shown here.

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

Yes. Dr. Whang's Medicare-recorded volume has increased from 50 procedures in 2013 to 136 in the most recent data, a 172% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 141 procedures in 2022.

Does Dr. Whang perform more than one type of joint replacement?

Yes. Dr. Whang's Medicare data shows procedures in knee replacement (100 cases), hip replacement (36 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Whang affiliated with?

According to CMS facility affiliation data, Dr. Whang is affiliated with Memorial Medical Center, Adventist Health Sonora.

How does Dr. Whang compare to other orthopedic surgeons in Modesto?

Among the 11 orthopedic surgeons in Modesto, Dr. Whang ranks #1 by total Medicare procedure volume. Dr. Whang has the highest verified Medicare volume in the city.

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

Memorial Medical Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Adventist Health Sonora (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.

Other Orthopedic Surgeons in Modesto, California

Dr. Whang's 136 Medicare procedures are above the Modesto average of 65. The table below compares verified procedure volumes for orthopedic surgeons practicing in Modesto.

SurgeonProceduresSpecialties
Dr. Jonathon Staples 128 Hip, Knee
Dr. Wesley Kinzie 49 Hip, Knee
Dr. Jesua Law 46 Hip, Knee
Dr. William Pistel 45 Knee, Shoulder
Dr. Michael Purnell 27 Knee, Shoulder
Dr. William Holmes 26 Hip, Knee

Patient Reviews & Ratings

OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:

These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.

Cite This Data

APA: OrthoProcedures. (2026). Dr. William Whang, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/ca/dr-william-whang-modesto.html

Link: https://orthoprocedures.com/surgeons/ca/dr-william-whang-modesto.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.