Dr. Michael Hay, MD
Contact & Location
Harriman, TN 37748
Dr. Michael Hay is a board-certified orthopedic surgeon practicing in Harriman, Tennessee. A Medicare provider since 2005, Dr. Hay has performed 23 Medicare-verified knee replacements, ranking #120 in Tennessee.
In Tennessee, Dr. Hay performs below average in knee (23 vs 46 avg).
Dr. Hay's Medicare data shows a focused knee replacement practice with 23 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.
Dr. Hay is the only orthopedic surgeon in Harriman represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area. Dr. Hay also maintains hospital privileges in TX and TN, indicating a regional practice that extends beyond Tennessee.
Dr. Hay's Medicare data spans 12 years, beginning in 2013. Volume peaked at 47 procedures in 2015 before settling at 23 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Hay's 23 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. Hay Compares
Procedure volume compared to the Tennessee state average.
Volume Trend Analysis
Dr. Hay's recorded volume peaked at 47 procedures in 2015 and stood at 23 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Hay
How does Dr. Hay's procedure volume compare to other Tennessee surgeons?
Dr. Hay has performed 23 Medicare-verified joint replacement procedures. The Tennessee average is 65 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Hay ranks #169 out of 219 orthopedic surgeons in Tennessee.
What types of joint replacement does Dr. Hay perform?
Dr. Hay's reported Medicare volume is focused on knee replacement, with 23 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Where is Dr. Hay's practice located?
Dr. Hay practices in Harriman, Tennessee. The office is located at 8035 Roane Medical Center Dr Ste 130, Harriman, TN 37748. Patients in the surrounding area can consult Dr. Hay for joint replacement evaluation.
What does the Medicare data for Dr. Hay 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. Hay's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 23 procedures shown here.
Has Dr. Hay's procedure volume changed over time?
Dr. Hay's Medicare-recorded volume peaked at 47 procedures in 2015 and was 23 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Which hospitals is Dr. Hay affiliated with?
According to CMS facility affiliation data, Dr. Hay is affiliated with Graham Regional Medical Center, Roane Medical Center. Dr. Hay maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
What are the quality ratings for hospitals where Dr. Hay practices?
Graham Regional Medical Center (hip/knee complication rate similar to national average); Roane Medical Center (4 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.
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.