NPPES file of Aug 9, 2026

Gregory William Johnson, MD

Family Medicine Physician · Iron Mountain, MI

Gregory William Johnson, MD is a family medicine physician with a practice address in Iron Mountain, Michigan, and NPI 1124016134, issued on Oct 12, 2005. Check the license 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
1124016134
Name
Gregory William Johnson
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
45560 TN
32895-020 WI
Self-reported in NPPES; status is on the state search
Practice location
325 E H St, Iron Mountain, MI 49801
Phone
(906) 774-3300
Enumerated
Oct 12, 2005
Record last updated
Jan 9, 2019 (not updated in 7 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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8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →

Also registered at 325 E H St

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

  1. Tomas Abalo, M.D.Internal Medicine Physician1336199975
  2. Bobbie AdellLicensed Practical Nurse1124949532
  3. David Ahonen, FNP-BCNurse Practitioner1447719794
  4. Anthony Amicangelo, RDRegistered Dietitian1194761627
  5. Sharon Anastas, LMSWClinical Social Worker1710928676
  6. Kristen AndersonAmbulatory Care Registered Nurse1710801477

Verify Gregory William Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)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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Gregory William Johnson among 6,013 family medicine physician records in Michigan

Gregory William Johnson, MD is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileNo · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2019 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

26 family medicine physician records list a practice address in Iron Mountain

They are 26 of the 613 NPPES records with a practice address in Iron Mountain, and 6,013 family medicine physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 6,013 in Michigan → Every provider in Iron Mountain → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Aldo Domenichini, MDIron Mountain, MI 498011245224062
  2. John Groeneveld, MDIron Mountain, MI 498011467452391
  3. Allison Harbour, MDIron Mountain, MI 498011316973167
  4. Karol Hendrickson, DOIron Mountain, MI 498011902890940
  5. Donald Jacobs, MDIron Mountain, MI 498011699757286
  6. Alexander Judy, MDIron Mountain, MI 498011730189663
  7. Nicole Linder, MDIron Mountain, MI 498011700871159
  8. Daniel Mitchell, M.D.Iron Mountain, MI 498011265434849

Common questions

What is Gregory William Johnson, MD's NPI number?

Gregory William Johnson, MD's National Provider Identifier (NPI) is 1124016134, issued on Oct 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory William Johnson, MD located?

The NPPES record lists a practice address at 325 E H St, Iron Mountain, MI, 49801. Phone: (906) 774-3300. Providers update this record themselves, so call before visiting.

How can I verify Gregory William Johnson, MD's license?

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.

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.