NPPES file of Aug 9, 2026

Carl Stephen Zayac, D.O.

Emergency Medicine Physician · Farmington Hills, MI

Carl Stephen Zayac, D.O. is an emergency medicine physician with a practice address in Farmington Hills, Michigan, and NPI 1831482595, issued on May 26, 2011. Check the license (Michigan 5101018985, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831482595
Name
Carl Stephen Zayac
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
5101018985 MI
Self-reported in NPPES; status is on the state search
Practice location
28050 Grand River Ave, Farmington Hills, MI 48336
Phone
(248) 471-8000
Enumerated
May 26, 2011
Record last updated
May 26, 2011 (not updated in 15 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 28050 Grand River Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Naila Abdullah, DOInternal Medicine Physician1700372273
  2. Carley AbelSpeech-Language Pathologist1457813479
  3. Michael Abrash, M.D.Anatomic Pathology & Clinical Pathology Physician1033152681
  4. Ghadah AbujameaEmergency Medicine Physician1144102765
  5. Cheryl Adams, CRNACertified Registered Nurse Anesthetist1730476227
  6. Gloria AdamsCertified Registered Nurse Anesthetist1326051350

Verify Carl Stephen Zayac in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101018985    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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67% more Medicare Part D claims than the average emergency medicine physician in 2024

377 Medicare Part D claims for 225 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 29 claims were for opioids.

  1. Carl Zayac377
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt60 claims
  2. Ibuprofen39 claims
  3. Cyclobenzaprine Hcl26 claims
  4. Cefdinir25 claims
  5. Methylprednisolone24 claims
  6. Dicyclomine Hcl23 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.

85 emergency medicine physician records list a practice address in Farmington Hills

They are 85 of the 36,305 NPPES records with a practice address in Farmington Hills, and 3,083 emergency medicine physician records in Michigan.

All 85 in Farmington Hills → All 3,083 in Michigan → Every provider in Farmington Hills →

Other emergency medicine physician records in Michigan

  1. Melanie Aaberg, DOTrenton, MI1801093968
  2. Sydney Abass, MDTrenton, MI1306504253
  3. Danya AbbasLenox, MI1104319672
  4. Saiyeda Abbas, M.D.Farmington Hills, MI1255540894
  5. Samantha AbdallahDetroit, MI1609457985
  6. Maher AbdoDetroit, MI1699263202
  7. Moneer Abdo, M.D.Ann Arbor, MI1508204587
  8. Kristi AbelaTrenton, MI1619807252
  9. Mahshid Abir, MDAnn Arbor, MI1790988632
  10. Mallory Abney, MDAnn Arbor, MI1871080382

Common questions

What is Carl Stephen Zayac, D.O.'s NPI number?

Carl Stephen Zayac, D.O.'s National Provider Identifier (NPI) is 1831482595, issued on May 26, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Carl Stephen Zayac, D.O. located?

The NPPES record lists a practice address at 28050 Grand River Ave, Farmington Hills, MI, 48336. Phone: (248) 471-8000. Providers update this record themselves, so call before visiting.

How can I verify Carl Stephen Zayac, D.O.'s license?

NPPES lists Michigan license number 5101018985, 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 Carl Stephen Zayac, D.O. prescribe under Medicare Part D?

In 2024, Carl Stephen Zayac, D.O. had 377 Medicare Part D claims for 225 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.