Dr. Robert Hay, M.D.
Contact & Location
843-884-0302
Mount Pleasant, SC 29464
Dr. Hay performs more knee replacement procedures than 77% of orthopedic surgeons in South Carolina, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #27 of 120 ranked knee surgeons in South Carolina.
About Dr. Hay
Practice. Dr. Robert Hay is a board-certified orthopedic surgeon practicing in Mount Pleasant, South Carolina. The latest annual CMS data records 82 knee replacements and 34 hip replacements, 116 procedures in all. That is #27 in South Carolina for knee replacement.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 53 procedures a year to 116, up 119%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 82 procedures is above the national average of 45.
Local context. Mount Pleasant has 4 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 14 | 39 |
| 2014 | 15 | 41 |
| 2015 | 13 | 52 |
| 2016 | 17 | 56 |
| 2017 | 15 | 54 |
| 2018 | 22 | 48 |
| 2019 | 21 | 65 |
| 2020 | 12 | 44 |
| 2021 | 24 | 44 |
| 2022 | 22 | 78 |
| 2023 | 31 | 74 |
| 2024 | 34 | 82 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 25% to 33% for hip replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Hay Compares
Procedure volume compared to the South Carolina state average.
Volume Trend Analysis
Dr. Hay's Medicare-recorded procedure volume has trended upward over 12 years, increasing 119% from 53 procedures in 2013 to 116 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.
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 South Carolina surgeons?
Dr. Hay has performed 116 Medicare-verified joint replacement procedures. This is significantly above the South Carolina average of 76 procedures per surgeon. Dr. Hay ranks #32 out of 158 orthopedic surgeons in South Carolina.
What types of joint replacement does Dr. Hay perform?
Dr. Hay's Medicare data shows procedures in knee replacement (82 cases) and hip replacement (34 cases).
Are there other orthopedic surgeons near Dr. Hay in Mount Pleasant?
Yes. There are 4 orthopedic surgeons in Mount Pleasant 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 South Carolina surgeons.
What does the Medicare data for Dr. Hay represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Hay's total volume across all insurers at roughly 400 to 490 procedures against the 116 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Hay's procedure volume changed over time?
Yes. Dr. Hay's Medicare-recorded volume has increased from 53 procedures in 2013 to 116 in the most recent data, a 119% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 116 procedures in 2024.
Does Dr. Hay perform more than one type of joint replacement?
Yes. Dr. Hay's Medicare data shows procedures in knee replacement (82 cases), hip replacement (34 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Hay affiliated with?
According to CMS facility affiliation data, Dr. Hay is affiliated with Roper Hospital, Mount Pleasant Hospital, Bon Secours-St Francis Xavier Hospital, Roper St Francis Hospital-Berkely Inc, Musc Medical Center.
How does Dr. Hay compare to other orthopedic surgeons in Mount Pleasant?
Among the 4 orthopedic surgeons in Mount Pleasant, Dr. Hay ranks #1 by total Medicare procedure volume. Dr. Hay has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Hay practices?
Roper Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Mount Pleasant Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Bon Secours-St Francis Xavier Hospital (4 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Mount Pleasant, South Carolina
Dr. Hay's 116 Medicare procedures are above the Mount Pleasant average of 68. The table below compares verified procedure volumes for orthopedic surgeons practicing in Mount Pleasant.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Dustin Hambright | 114 | Hip, Knee |
| Dr. James Demarco | 24 | Shoulder |
| Dr. William Estes | 16 | Knee |
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.