Austin Daniel Mackenzie, MD
Emergency Medicine Physician · Grand Rapids, MI
Austin Daniel Mackenzie, MD is an emergency medicine physician with a practice address in Grand Rapids, Michigan, and NPI 1407419591, issued on Apr 15, 2019. Check the license (Michigan 4301506905, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Austin Daniel Mackenzie
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 4301506905 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 975-1845
- Enumerated
- Apr 15, 2019
- Record last updated
- Sep 23, 2022
- Medicare enrollment
- Enrolled (PECOS I20220823001309); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 100 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Austin Daniel Mackenzie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301506905Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average emergency medicine physician in 2024
101 Medicare Part D claims for 80 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefuroxime12 claims
- Prednisone12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 96.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $46.42
3 payments; by number, the most common kind was food and beverage; the largest payer was Genentech USA, Inc. The 12,335 providers of this specialty with any payment received $953.79 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.
Bills Medicare through one group practice
- Ecs Western Michigan PCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Austin Daniel Mackenzie among 3,083 emergency medicine physician records in Michigan
Austin Daniel Mackenzie, MD is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 74% of them.
- NPI issued2019 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2013 among the 1,931 with a school on file
- Record last updated2022 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
192 emergency medicine physician records list a practice address in Grand Rapids
They are 192 of the 18,005 NPPES records with a practice address in Grand Rapids, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Grand Rapids → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Adam Anderson, MDGrand Rapids, MI 495031003805268
- Kristi Artz, MDGrand Rapids, MI 495031558301820
- Kathleen Blazek, MDGrand Rapids, MI 495031083672729
- Christopher Cahill, DOGrand Rapids, MI 495031265480263
- Jennifer Ekkens, DOGrand Rapids, MI 495031275591414
- Mark Figurski, MDGrand Rapids, MI 495031972598340
- Donald Findlay, DOGrand Rapids, MI 495031114912581
- Eric Kaminskas, MDGrand Rapids, MI 495031598704405
Common questions
What is Austin Daniel Mackenzie, MD's NPI number?
Austin Daniel Mackenzie, MD's National Provider Identifier (NPI) is 1407419591, issued on Apr 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Austin Daniel Mackenzie, MD located?
The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 975-1845. Providers update this record themselves, so call before visiting.
How can I verify Austin Daniel Mackenzie, MD's license?
NPPES lists Michigan license number 4301506905, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Austin Daniel Mackenzie, MD prescribe under Medicare Part D?
In 2024, Austin Daniel Mackenzie, MD had 101 Medicare Part D claims for 80 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Austin Daniel Mackenzie, MD's MIPS final score?
The 2023 MIPS final score is 96.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.