Dr. Zachary Shirley, M.D.
Dr. Zachary Shirley is a board-certified orthopedic surgeon practicing in Houston, Texas. Dr. Shirley has performed 30 Medicare-verified hip replacements (#96 in Texas) and 24 knee replacements, for a combined total of 54 procedures.
In Texas, Dr. Shirley performs near average in hip (30 vs 30 avg), below average in knee (24 vs 41 avg).
Dr. Shirley's reported Medicare volume is split between hip replacements (30 cases) and knee replacements (24 cases).
Houston is home to 52 orthopedic surgeons in the current Medicare dataset. Patients in the Houston area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Shirley first appears in the Medicare dataset in 2022. With 2 years of recorded data, the longitudinal trend is still developing.
Among 4,526 hip replacement surgeons tracked nationally, Dr. Shirley's 30 verified procedures is near the national average of 36.
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 Texas state average.
Contact & Location
Houston, TX 77094
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Shirley has 2 years of Medicare procedure data beginning in 2022. Additional years of data will provide a clearer picture of volume trends.
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.
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.
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. Shirley
How does Dr. Shirley's procedure volume compare to other Texas surgeons?
Dr. Shirley has performed 54 Medicare-verified joint replacement procedures. This is in line with the Texas average of 56 procedures per surgeon. Dr. Shirley ranks #210 out of 573 orthopedic surgeons in Texas.
What types of joint replacement does Dr. Shirley perform?
Dr. Shirley's Medicare data shows procedures in hip replacement (30 cases) and knee replacement (24 cases).
Are there other orthopedic surgeons near Dr. Shirley in Houston?
Yes. There are 52 orthopedic surgeons in Houston 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 Texas 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 54 procedures shown here.
Does Dr. Shirley perform more than one type of joint replacement?
Yes. Dr. Shirley's Medicare data shows procedures in hip replacement (30 cases), knee replacement (24 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. Dr. Shirley maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Shirley compare to other orthopedic surgeons in Houston?
Among the 52 orthopedic surgeons in Houston, Dr. Shirley ranks #31 by total Medicare procedure volume. The highest-volume surgeon in Houston has 358 verified Medicare procedures.
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 Houston, Texas
Dr. Shirley's 54 Medicare procedures are below the Houston average of 176. The table below compares verified procedure volumes for orthopedic surgeons practicing in Houston.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Stefan Kreuzer | 358 | Hip, Knee |
| Dr. Robin Goytia | 198 | Hip, Knee |
| Dr. Vasilios Mathews | 182 | Hip, Knee |
| Dr. Gregory Stocks | 165 | Hip, Knee |
| Dr. Kenneth Mathis | 147 | Hip, Knee |
| Dr. Ugonna Ihekweazu | 131 | Hip, Knee |
Patient Reviews & Ratings
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