Christopher I. Mackay, M.D.
NPI 1538269402ActiveIndividual· Neurological Surgery· Anchorage, AK
Neurological Surgery (M.D.) in Anchorage, Alaska, trained at University of Ottawa, Faculty of Medicine (class of 1994). 59 Medicare patients in 2024, $56,659 paid; nearly all of their 379 Part D prescriptions were generic (99%). Stryker Corporation was the largest of 2 companies reporting payments in 2025, $231.64 in all, mostly food and beverage.
Overview
| NPI | 1538269402 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 22, 2006 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 252487 | AK |
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 - Neurosurgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 59 |
|---|---|
| Services billed | 210 across 32 procedure codes |
| Paid by Medicare | $56,659 |
Part D prescriptions in 2024
| Prescriptions (claims) | 379 · 380 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $3,335 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Ottawa, Faculty of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Hospital affiliations
- Aspirus Medford Hospital & Clinics, IncMedford, WI
- Aspirus Riverview Hospital & Clinics IncWisconsin Rapids, WI
- Aspirus Wausau HospitalWausau, WI
- Marshfield Medical CenterMarshfield, WI
- Marshfield Medical Center - WestonWeston, WI
Industry payments (Open Payments)
- 2025$231.64 · 3 payments from 2 companies
- 2024$1,789 · 16 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $174.96 | 2 |
| Depuy Synthes Sales Inc. | $56.68 | 1 |
What the 2025 payments were for
- Food and Beverage$231.64 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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