NPPES file of Aug 9, 2026

Mark David Cowan, MD

Cardiovascular Disease Physician · Marquette, MI

Mark David Cowan, MD is a cardiovascular disease physician with a practice address in Marquette, Michigan, and NPI 1932144938, issued on Jun 17, 2006. Check the license (Michigan 4301052687, 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
1932144938
Name
Mark David Cowan
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
4301052687 MI
Self-reported in NPPES; status is on the state search
Practice location
1414 W Fair Ave, Marquette, MI 49855
Phone
(906) 225-3870
Enumerated
Jun 17, 2006
Record last updated
Aug 22, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(906) 225-4861
Medicaid IDs
1901057 MI
30596900 WI
Medicare enrollment
Enrolled (PECOS I20070326000397); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 1983
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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Also registered at 1414 W Fair Ave

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

  1. Jamie-Diane Armour, M.S.Genetic Counselor (M.S.)1639553381
  2. Daniel Arnold, MDHematology (Internal Medicine) Physician1124012661
  3. Stephen Bailey, PA-CPhysician Assistant1275643827
  4. Susan Balmer, MDInternal Medicine Physician1164640058
  5. John Bartlett, M.D.Internal Medicine Physician1821090994
  6. Eliza Bischof, PA-CPhysician Assistant1366101545

Verify Mark David Cowan 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 4301052687
    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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99% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

37 Medicare Part D claims, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.

  1. Mark Cowan37
  2. Specialty average3,078

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).

Mark David Cowan among 860 cardiovascular disease physician records in Michigan

Mark David Cowan, MD is one of 860 cardiovascular disease physician records with a practice address in Michigan. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 20% of them.

  • NPI issued2006 · 20% of these records are older, 44% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1983 · median 1999 among the 606 with a school on file
  • Record last updated2013 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Michigan

There are 860 cardiovascular disease physician records in Michigan.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Gail Brayden, MDMarquette, MI 498551588608947
  2. Gary Friesen, MDMarquette, MI 498551730123183
  3. Nelson Gencheff, DOMarquette, MI 498551073557435
  4. William Jean, MDMarquette, MI 498551710922711
  5. Thomas Legalley, MDMarquette, MI 498551255375614
  6. John Pap, MDMarquette, MI 498551093750085
  7. David Pesola, MDMarquette, MI 498551285662015
  8. Vennaralagappan Mahadev, MDIron Mountain, MI 498011720076581

Common questions

What is Mark David Cowan, MD's NPI number?

Mark David Cowan, MD's National Provider Identifier (NPI) is 1932144938, issued on Jun 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark David Cowan, MD located?

The NPPES record lists a practice address at 1414 W Fair Ave, Marquette, MI, 49855. Phone: (906) 225-3870. Providers update this record themselves, so call before visiting.

How can I verify Mark David Cowan, MD's license?

NPPES lists Michigan license number 4301052687, 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 Mark David Cowan, MD prescribe under Medicare Part D?

In 2024, Mark David Cowan, MD had 37 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,078. 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.

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.