Dr. William MacAulay, MD
Contact & Location
212-305-4565
New York, NY 10032
About Dr. MacAulay
Dr. William MacAulay is a board-certified orthopedic surgeon practicing in New York, New York. A Medicare provider since 2006, Dr. MacAulay performed 84 Medicare-verified hip replacements (#22 in New York) and 66 knee replacements in the latest annual CMS data, for a combined total of 150 procedures.
In New York, Dr. MacAulay performs well above the state average in hip (84 vs 42), above the state average in knee (66 vs 47).
Dr. MacAulay's reported Medicare volume is split between hip replacements (84 cases) and knee replacements (66 cases).
New York is home to 84 orthopedic surgeons in the current Medicare dataset. Patients in the New York area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. MacAulay extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 121 to 150 in the most recent data, a 24% increase. This sustained growth reflects an expanding joint replacement practice.
Among 4,532 hip replacement surgeons tracked nationally, Dr. MacAulay's 84 verified procedures is more than 2x the national average of 36.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 60 | 61 |
| 2014 | 75 | 68 |
| 2015 | 60 | 79 |
| 2016 | 67 | 70 |
| 2017 | 30 | 37 |
| 2018 | 31 | 26 |
| 2019 | 59 | 42 |
| 2020 | 52 | 26 |
| 2021 | 64 | 49 |
| 2022 | 54 | 50 |
| 2023 | 66 | 78 |
| 2024 | 84 | 66 |
Verified Medicare Cases
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. MacAulay Compares
Procedure volume compared to the New York state average.
Volume Trend Analysis
Dr. MacAulay's Medicare-recorded procedure volume has trended upward over 12 years, increasing 24% from 121 procedures in 2013 to 150 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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
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.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. MacAulay
How does Dr. MacAulay's procedure volume compare to other New York surgeons?
Dr. MacAulay has performed 150 Medicare-verified joint replacement procedures. This is more than 2x the New York average of 69 procedures per surgeon. Dr. MacAulay ranks #42 out of 334 orthopedic surgeons in New York.
What types of joint replacement does Dr. MacAulay perform?
Dr. MacAulay's Medicare data shows procedures in hip replacement (84 cases) and knee replacement (66 cases).
Are there other orthopedic surgeons near Dr. MacAulay in New York?
Yes. There are 84 orthopedic surgeons in New York 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 New York surgeons.
What does the Medicare data for Dr. MacAulay 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. MacAulay's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 150 procedures shown here.
Has Dr. MacAulay's procedure volume changed over time?
Yes. Dr. MacAulay's Medicare-recorded volume has increased from 121 procedures in 2013 to 150 in the most recent data, a 24% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 150 procedures in 2024.
Does Dr. MacAulay perform more than one type of joint replacement?
Yes. Dr. MacAulay's Medicare data shows procedures in hip replacement (84 cases), knee replacement (66 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. MacAulay affiliated with?
According to CMS facility affiliation data, Dr. MacAulay is affiliated with Nyu Langone Hospitals.
How does Dr. MacAulay compare to other orthopedic surgeons in New York?
Among the 84 orthopedic surgeons in New York, Dr. MacAulay ranks #20 by total Medicare procedure volume. The highest-volume surgeon in New York has 343 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. MacAulay practices?
Nyu Langone Hospitals (5 out of 5 CMS stars, hip/knee complication rate better than national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in New York, New York
Dr. MacAulay's 150 Medicare procedures are below the New York average of 280. The table below compares verified procedure volumes for orthopedic surgeons practicing in New York.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Brian Chalmers | 343 | Hip, Knee |
| Dr. Jason Blevins | 322 | Hip, Knee |
| Dr. Eytan Debbi | 322 | Hip, Knee |
| Dr. Amar Ranawat | 318 | Hip, Knee |
| Dr. Geoffrey Westrich | 276 | Hip, Knee |
| Dr. Elizabeth Gausden | 229 | Hip, 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.