Christopher I. Mackay, M.D.
Neurological Surgery Physician · Wausau, WI
Christopher I. Mackay, M.D. is a neurological surgery physician with a practice address in Wausau, Wisconsin, and NPI 1538269402, issued on Sep 22, 2006. Check the license (Wisconsin 44117, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Christopher I. Mackay
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 44117 WI
Self-reported in NPPES; status is on the state search - Practice location
- 505 S 24TH Ave Ste 200, Wausau, WI 54401
- Phone
- (715) 396-3191
- Enumerated
- Sep 22, 2006
- Record last updated
- Apr 17, 2026
- Fax
- (715) 396-3191
- Medicaid ID
- 34207900 WI
- Medicare enrollment
- Enrolled (PECOS I20070619000316); accepts Medicare assignment
- Medical or professional school
- University Of Ottawa, Faculty Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 176 in Wisconsin → Look up another NPI →
Verify Christopher I. Mackay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44117Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average neurological surgery physician in 2024
379 Medicare Part D claims for 47 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. 218 claims were for opioids.
Most prescribed
- Oxycodone Hcl154 claims
- Cyclobenzaprine Hcl66 claims
- Hydrocodone-Acetaminophen45 claims
- Gabapentin28 claims
- Cephalexin25 claims
- Tramadol Hcl19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,788.56
16 payments; by number, the most common kind was food and beverage; the largest payer was Arthrex, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Christopher I. Mackay among 176 neurological surgery physician records in Wisconsin
Christopher I. Mackay, M.D. is one of 176 neurological surgery physician records with a practice address in Wisconsin. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 51% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1994 · median 2006 among the 112 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Wisconsin
There are 176 neurological surgery physician records in Wisconsin.
All 176 in Wisconsin → Every provider in Wausau → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Andrew Beaumont, M.D., PH.D.Wausau, WI 544011871688135
- Brian Bunch, MDWausau, WI 544011750493433
- Craig Kelman, MDWausau, WI 544011528350436
- Terence Lichtor, M.D.Wausau, WI 544011114976289
- Olatilewa Awe, M.D.Marshfield, WI 544491891080503
- Donald Kelman, MDMarshfield, WI 544491184731457
- John Neal, MDMarshfield, WI 544491932216298
- Avital Perry, MDMarshfield, WI 544491750722484
Common questions
What is Christopher I. Mackay, M.D.'s NPI number?
Christopher I. Mackay, M.D.'s National Provider Identifier (NPI) is 1538269402, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher I. Mackay, M.D. located?
The NPPES record lists a practice address at 505 S 24TH Ave Ste 200, Wausau, WI, 54401. Phone: (715) 396-3191. Providers update this record themselves, so call before visiting.
How can I verify Christopher I. Mackay, M.D.'s license?
NPPES lists Wisconsin license number 44117, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher I. Mackay, M.D. prescribe under Medicare Part D?
In 2024, Christopher I. Mackay, M.D. had 379 Medicare Part D claims for 47 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.