Christopher Mackay, M.D.
NPI 1538269402 · Neurological Surgery Physician · Wausau, WI
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Mackay, M.D. is a Neurological Surgery Physician provider in Wausau, WI (NPI 1538269402).
Provider details
- NPI number
- 1538269402
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 44117 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
113 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 60 | $169 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 22 | $205 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $120 |
| Computer-Assisted Spinal Procedure61783 | 11 | $194 |
Typical Medicare-allowed amounts for these services range $120–$205 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 154 | 24 |
| Cyclobenzaprine Hcl | 66 | 24 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 45 | — |
| Gabapentin | 28 | — |
| Cephalexin | 25 | 19 |
| Tramadol Hcl | 19 | — |
| Diazepam | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,789 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 4501 Highway 66Suite 200Stevens Point, WI 54482Phone: (715) 396-3191Fax: (715) 396-3191
Registry dates
- Enumerated
- 2006-09-22
- Last updated
- 2026-04-17
- Certified
- 2026-04-17
Frequently asked questions
- What is Christopher Mackay's NPI number?
- Christopher Mackay's National Provider Identifier (NPI) is 1538269402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Mackay's specialty?
- Christopher Mackay is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Mackay located?
- Christopher Mackay's practice location on file with NPPES is 505 S 24th Ave Ste 200, Wausau, WI 54401-1706.
- What is Christopher Mackay's phone number?
- The practice phone number listed in the NPPES registry for Christopher Mackay is (715) 396-3191.
- Does Christopher Mackay accept Medicare?
- Christopher Mackay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Mackay's NPI active?
- Yes — Christopher Mackay's NPI (1538269402) is active in the NPPES registry as of the last update on 2026-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.