Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. Austin Daniel Mackenzie, MD

Individual provider Emergency Medicine Physician · NPI 1407419591

Dr. Austin Daniel Mackenzie, MD practises Emergency Medicine in Grand Rapids, Michigan. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2018, 8 years ago. Practices with Ecs Western Michigan PC, a 201-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
8
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
MI
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

100 Michigan St NE
Grand Rapids, MI 49503-2560
Phone: (616) 975-1845
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 4301506905 (MI)

Record details

NPI number1407419591
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 15, 2019
Last updated in NPPESSeptember 23, 2022
Certification dateSeptember 23, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesANESTHESIOLOGY
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2018 (8 years in practice)
Group practice Ecs Western Michigan Pc — 201 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients149
Services billed 159 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Ecs Western Michigan PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 201 clinicians in the practice; 12 are shown here.

Other providers in Grand Rapids