Knee
Dr. John Zavala, MD
Dr. John Zavala is a board-certified orthopedic surgeon practicing in Rockwall, Texas. Dr. Zavala has performed 22 Medicare-verified knee replacements, ranking #318 in Texas.
In Texas, Dr. Zavala performs below average in knee (22 vs 41 avg).
Dr. Zavala's Medicare data shows a focused knee replacement practice with 22 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Rockwall is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Rockwall area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Zavala extend back to 2013, covering 10 years of data. Over that period, recorded procedure volume increased from 12 to 22 in the most recent data, a 83% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Zavala's 22 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Zavala Compares
Procedure volume compared to the Texas state average.
Contact & Location
Rockwall, TX 75032
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Zavala's Medicare-recorded procedure volume has trended upward over 10 years, increasing 83% from 12 procedures in 2013 to 22 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.
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.
Rehabilitation Roadmap: Your Complete Recovery GuideA structured physical therapy progression from the first post-op exercises through full strength and mobility restoration over 3 to 6 months.
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.
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. Zavala
How does Dr. Zavala's procedure volume compare to other Texas surgeons?
Dr. Zavala has performed 22 Medicare-verified joint replacement procedures. The Texas average is 56 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Zavala ranks #413 out of 573 orthopedic surgeons in Texas.
What types of joint replacement does Dr. Zavala perform?
Dr. Zavala's reported Medicare volume is focused on knee replacement, with 22 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Zavala in Rockwall?
Yes. There are 6 orthopedic surgeons in Rockwall 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. Zavala 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. Zavala's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 22 procedures shown here.
Has Dr. Zavala's procedure volume changed over time?
Yes. Dr. Zavala's Medicare-recorded volume has increased from 12 procedures in 2013 to 22 in the most recent data, a 83% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 36 procedures in 2019.
Which hospitals is Dr. Zavala affiliated with?
According to CMS facility affiliation data, Dr. Zavala is affiliated with Hunt Regional Healthcare, Baylor Scott And White Medical Center Lake Pointe, Texas Health Presbyterian Hospital Rockwall.
How does Dr. Zavala compare to other orthopedic surgeons in Rockwall?
Among the 6 orthopedic surgeons in Rockwall, Dr. Zavala ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Rockwall has 119 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Zavala practices?
Hunt Regional Healthcare (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Baylor Scott And White Medical Center Lake Pointe (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Texas Health Presbyterian Hospital Rockwall (5 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 Rockwall, Texas
Dr. Zavala's 22 Medicare procedures are below the Rockwall average of 44. The table below compares verified procedure volumes for orthopedic surgeons practicing in Rockwall.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Mohammad Burney | 119 | Hip, Knee |
| Dr. Bruno Gross | 51 | Hip, Knee |
| Dr. Daniel Aldrich | 33 | Knee, Shoulder |
| Dr. Danilo Volpini | 20 | Knee |
| Dr. Joshua Acree | 17 | Knee |
Patient Reviews & Ratings
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