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

Matthew Macias, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1992158422

Matthew Macias, MD practises Emergency Medicine in Ann Arbor, Michigan. Qualified in 2016, 10 years ago. Practices with Cep America LLC, a 985-clinician group and accepts Medicare assignment. Licensed in Michigan and Tennessee.

Years since qualifying
10
Licensed in
MI, TN
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Ann Arbor, MI

No coordinates on file. Search this address in Google Maps

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 4301500456 (TN)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 4301110398 (MI)

Record details

NPI number1992158422
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 20, 2016
Last updated in NPPESJanuary 17, 2020
Certification dateJanuary 17, 2020

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Cep America Llc — 985 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 patients671
Services billed 916 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 Cep America LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 985 clinicians in the practice; 12 are shown here.

Other providers in Ann Arbor