Dr. Zachary Shirley is a board-certified orthopedic surgeon practicing in Houston, Texas. In 2023, Dr. Shirley performed 30 Medicare-verified hip replacements (#96 in Texas) and 24 knee replacements, for a combined total of 54 procedures.
Dr. Shirley's 54 Medicare procedures are near the Texas median of 40. The state has 573 orthopedic surgeons in the current Medicare dataset. Medicare fee-for-service data captures roughly 33–37% of all joint replacements, so total surgical volume is likely higher.
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.
Verified Medicare Cases (2023)
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.
Hospital Affiliations
Verified Case Volume Trends (2013-2023)
Frequently Asked Questions About Dr. Shirley
How does Dr. Shirley's procedure volume compare to other Texas surgeons?
In 2023, Dr. Shirley 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 Medicare Part B fee-for-service claims data for 2023, 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.
Other Orthopedic Surgeons in Houston, Texas
Compare Dr. Shirley's volume with other 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 |
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Houston, TX 77094