William Giles Stuart Mackenzie, M.D.
NPI 1952744898ActiveIndividual· Orthopaedic Surgery, Pediatric Orthopaedic Surgery· Wilmington, DE
Orthopaedic Surgery, Pediatric Orthopaedic Surgery (M.D.) with The Nemours Foundation, practicing in Wilmington, Delaware. Enrolled in Medicare as practitioner - orthopedic surgery and practitioner - orthopedic surgery. Medical Device Business Services, Inc. was the largest of 8 companies reporting payments in 2025, $4,448 in all, mostly consulting fees. Lists Nemours Children's Hospital, Delaware as a hospital affiliation.
Overview
| NPI | 1952744898 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 10, 2013 |
| Last updated in NPPES | Sep 4, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Pediatric Orthopaedic Surgery Primary | 207XP3100X | C1-0013223 | DE |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (DE); Practitioner - Orthopedic Surgery (FL) |
|---|
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical group
- The Nemours FoundationWilmington, DE · 249 clinicians
Hospital affiliation
- Nemours Children's Hospital, DelawareWilmington, DE
Industry payments (Open Payments)
- 2025$4,448 · 17 payments from 8 companies
- 2024$5,451 · 12 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medical Device Business Services, Inc. | $3,259 | 6 |
| Globus Medical, Inc. | $399.54 | 2 |
| Orthopediatrics Corp. | $247.19 | 2 |
| Medtronic, Inc. | $223.80 | 3 |
| Depuy Synthes Sales Inc. | $135.91 | 1 |
What the 2025 payments were for
- Consulting Fee$2,310 · 2 payments
- Travel and Lodging$1,292 · 4 payments
- Food and Beverage$845.51 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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