NPPES file of Aug 9, 2026

James John Heron, M.D.

Adult Medicine Physician · Marquette, MI

James John Heron, M.D. is an adult medicine physician with a practice address in Marquette, Michigan, and NPI 1942364609, issued on Dec 20, 2006. Check the license (Michigan 4301043907, as entered in NPPES) on the Michigan Board of Medicine (LARA); the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1942364609
Name
James John Heron
Credential
M.D.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
4301043907 MI
Self-reported in NPPES; status is on the state search
Practice location
425 Fisher St, Marquette, MI 49855
Phone
(906) 226-3576
Enumerated
Dec 20, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(906) 226-9533
Medicaid ID
4509057 MI
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 425 Fisher St

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

  1. Robert Flatt, R.PH.Pharmacist1740204783
  2. Bradley Harvala, PHARMD.Pharmacist1295016558
  3. Cynthia Lack, MDFamily Medicine Physician1104920628

Verify James John Heron 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 4301043907
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Adult Medicine Physician providers in Michigan

There are 45 adult medicine physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other adult medicine physician records in Michigan

  1. Innocent Agbassi, M.D.Livonia, MI1922053636
  2. Emil Alberding, M.D.Richland, MI1366673832
  3. Leslie Arwin, MD, MPHAnn Arbor, MI1588750251
  4. Edward Conley, D.O.Flint, MI1700114550
  5. Jordan Demchuk, MDLansing, MI1154942266
  6. Robert Ernst, M.D.Birmingham, MI1871809798
  7. Joseph George, M.D.Lincoln Park, MI1740352798
  8. Rebecca Hagerty, DOTraverse City, MI1568463057
  9. Lynda Hammond, MDJackson, MI1124072723
  10. Filemon Inocencio, M.D.Berrien Springs, MI1194965335

Common questions

What is James John Heron, M.D.'s NPI number?

James John Heron, M.D.'s National Provider Identifier (NPI) is 1942364609, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James John Heron, M.D. located?

The NPPES record lists a practice address at 425 Fisher St, Marquette, MI, 49855. Phone: (906) 226-3576. Providers update this record themselves, so call before visiting.

How can I verify James John Heron, M.D.'s license?

NPPES lists Michigan license number 4301043907, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.