Michael Alan Mackay, M.D.
Orthopaedic Surgery (M.D.) in Oak Ridge, Tennessee, trained at Wayne State University School of Medicine (class of 1992). In 2024 Medicare paid $139,384 for 347 patients, and Part D covered 417 of their prescriptions, 73% of them generic. Smith+nephew, Inc. was the largest of 4 companies reporting payments in 2025, $168.98 in all, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1710955315 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 9, 2006 |
| Last updated in NPPES | Jan 15, 2026 |
| Certified by provider | Jan 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD29247 | TN |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in Tennessee, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Michael Lee Mackay · Nurse/Nurses Aide | 1128b4 | Jul 20, 2008 | Hendersonville, TN |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | Possible (name) | See above |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 347 |
|---|---|
| Services billed | 1,705 across 82 procedure codes |
| Paid by Medicare | $139,384 |
Part D prescriptions in 2024
| Prescriptions (claims) | 417 · 451 30-day fills |
|---|---|
| Patients | 239 |
| Total drug cost | $69,411 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Orthotennessee PCKnoxville, TN · 153 clinicians
Hospital affiliations
- Lafollette Medical CenterLa Follette, TN
- Methodist Medical Center of Oak RidgeOak Ridge, TN
- Roane Medical CenterHarriman, TN
Other facilities
- Amedisys Home Health CareHome health agency · Knoxville, TN
Industry payments (Open Payments)
- 2025$168.98 · 7 payments from 4 companies
- 2024$419.82 · 12 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Smith+nephew, Inc. | $70.07 | 3 |
| Vertex Pharmaceuticals Incorporated | $38.36 | 2 |
| Restor3d, Inc. | $36.73 | 1 |
| Pfizer Inc. | $23.82 | 1 |
What the 2025 payments were for
- Food and Beverage$168.98 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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