NPPES file of Aug 9, 2026

David Mark Viau, M.D.

Emergency Medicine Physician · Marquette, MI

David Mark Viau, M.D. is an emergency medicine physician with a practice address in Marquette, Michigan, and NPI 1942543996, issued on Mar 28, 2013. Check the license (Michigan 4301103754, 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
1942543996
Name
David Mark Viau
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
4301103754 MI
Self-reported in NPPES; status is on the state search
Practice location
580 W College Ave, Marquette, MI 49855
Phone
(906) 226-3561
Enumerated
Mar 28, 2013
Record last updated
Mar 30, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160818001609); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →

Also registered at 580 W College Ave

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

  1. Nicole Alexander, M.D.Critical Care Medicine (Internal Medicine) Physician1740359744
  2. Constance Arnold, M.D.Plastic and Reconstructive Surgery Physician1831196401
  3. Christina Arnoldus, M.D.Diagnostic Radiology Physician1730283805
  4. Sarah BalkoRegistered Dietitian1518125699
  5. Christina Barber, CRNACertified Registered Nurse Anesthetist1184606238
  6. Amanda Beerman, NPNurse Practitioner1689754251

Verify David Mark Viau 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 4301103754    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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8% fewer Medicare Part D claims than the average emergency medicine physician in 2024

208 Medicare Part D claims for 149 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 43 claims were for opioids.

  1. David Viau208
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen33 claims
  2. Prednisone23 claims
  3. Ondansetron Odt19 claims
  4. Cephalexin14 claims
  5. Doxycycline Hyclate14 claims
  6. Cefuroxime13 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.

Bills Medicare through one group practice

  1. Dlp Marquette Physician Practices IncMarquette, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David Mark Viau among 3,083 emergency medicine physician records in Michigan

David Mark Viau, M.D. 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 2013, is newer than 51% of them.

  • NPI issued2013 · 51% of these records are older, 45% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2013 · median 2013 among the 1,931 with a school on file
  • Record last updated2017 · 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).

Emergency Medicine Physician providers in Michigan

There are 3,083 emergency medicine physician records in Michigan.

All 3,083 in Michigan → Every provider in Marquette → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. James Carothers, DOMarquette, MI 498551114110830
  2. Leah Heron, M.D.Marquette, MI 498551528440245
  3. Ryan MillerMarquette, MI 498551033869292
  4. Ned Oswald, M.D.Marquette, MI 498551609081983
  5. Joel Poliskey, MDMarquette, MI 498551255960985
  6. Donald Snowdon, M.D.Marquette, MI 498551003899600
  7. George Belkowski, MDIshpeming, MI 498491942255112
  8. George Bonefeld, DOIshpeming, MI 498491578519443

Common questions

What is David Mark Viau, M.D.'s NPI number?

David Mark Viau, M.D.'s National Provider Identifier (NPI) is 1942543996, issued on Mar 28, 2013. An NPI identifies a provider in billing; it is not a license.

Where is David Mark Viau, M.D. located?

The NPPES record lists a practice address at 580 W College Ave, Marquette, MI, 49855. Phone: (906) 226-3561. Providers update this record themselves, so call before visiting.

How can I verify David Mark Viau, M.D.'s license?

NPPES lists Michigan license number 4301103754, 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 David Mark Viau, M.D. prescribe under Medicare Part D?

In 2024, David Mark Viau, M.D. had 208 Medicare Part D claims for 149 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.