Dr. Zachary Shirley, M.D.
Contact & Location
Moorestown, NJ 08057
Dr. Zachary Shirley is a board-certified orthopedic surgeon practicing in Moorestown, New Jersey. A Medicare provider since 2015, Dr. Shirley has performed 31 Medicare-verified knee replacements (#76 in New Jersey) and 21 hip replacements, for a combined total of 52 procedures.
In New Jersey, Dr. Shirley performs below average in knee (31 vs 54 avg), below average in hip (21 vs 44 avg).
Dr. Shirley's reported Medicare volume is split between knee replacements (31 cases) and hip replacements (21 cases).
Beyond general orthopedic surgery, Dr. Shirley holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Moorestown is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Moorestown area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Shirley extend back to 2022, covering 3 years of data. Over that period, recorded procedure volume increased from 45 to 52 in the most recent data, a 16% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Shirley's 31 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 Case Volume Trends (2013-Current)
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. Shirley Compares
Procedure volume compared to the New Jersey state average.
Volume Trend Analysis
Dr. Shirley's Medicare-recorded procedure volume has trended upward over 3 years, increasing 16% from 45 procedures in 2022 to 52 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 Knee Replacement
If you are considering knee replacement surgery, these evidence-based guides can help you prepare and recover:
An overview of current surgical approaches including robotic-assisted and minimally invasive techniques, implant options, and expected outcomes.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
Knee Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:
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. Shirley
How does Dr. Shirley's procedure volume compare to other New Jersey surgeons?
Dr. Shirley has performed 52 Medicare-verified joint replacement procedures. The New Jersey average is 72 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Shirley ranks #76 out of 184 orthopedic surgeons in New Jersey.
What types of joint replacement does Dr. Shirley perform?
Dr. Shirley's Medicare data shows procedures in knee replacement (31 cases) and hip replacement (21 cases).
Are there other orthopedic surgeons near Dr. Shirley in Moorestown?
Yes. There are 2 orthopedic surgeons in Moorestown 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 Jersey surgeons.
What does the Medicare data for Dr. Shirley 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. Shirley's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 52 procedures shown here.
Has Dr. Shirley's procedure volume changed over time?
Yes. Dr. Shirley's Medicare-recorded volume has increased from 45 procedures in 2022 to 52 in the most recent data, a 16% increase over 3 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 54 procedures in 2023.
Does Dr. Shirley perform more than one type of joint replacement?
Yes. Dr. Shirley's Medicare data shows procedures in knee replacement (31 cases), hip replacement (21 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Shirley affiliated with?
According to CMS facility affiliation data, Dr. Shirley is affiliated with Virtua Mount Holly Hospital, West Jersey Hospital.
What are the quality ratings for hospitals where Dr. Shirley practices?
Virtua Mount Holly Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); West Jersey Hospital (3 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 Moorestown, New Jersey
Dr. Shirley's 52 Medicare procedures are above the Moorestown average of 45. The table below compares verified procedure volumes for orthopedic surgeons practicing in Moorestown.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Seth Stake | 38 | Hip |
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.