NPPES file of Aug 9, 2026

John Michael Jansen, MD

Family Medicine Physician · Muskegon, MI

John Michael Jansen, MD is a family medicine physician with a practice address in Muskegon, Michigan, and NPI 1437711520, issued on Jun 28, 2019. Check the license (Michigan 4351045672, 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
1437711520
Name
John Michael Jansen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
4351045672 MI
Self-reported in NPPES; status is on the state search
Practice location
2009 Holton RD, Muskegon, MI 49445
Phone
(231) 291-8399
Enumerated
Jun 28, 2019
Record last updated
Jun 29, 2023
Medicare enrollment
Enrolled (PECOS I20220609000433); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2019
Telehealth
Offers telehealth (CMS)
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 2009 Holton RD

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

  1. Kilee Aamodt, PA-CPhysician Assistant1578964300
  2. Earl Beam, PAPhysician Assistant1174589261
  3. Paul Bradley, DNP, FNP-CFamily Nurse Practitioner1164153672
  4. Melissa Brown, D.O.Family Medicine Physician1063605822
  5. Anita Buckner, FNPFamily Nurse Practitioner1073175303
  6. Anne Clancy, DPTPhysical Therapist1770719734

Verify John Michael Jansen 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 4351045672
    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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8% fewer Medicare Part D claims than the average family medicine physician in 2024

3,263 Medicare Part D claims for 438 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 106 claims were for opioids.

  1. John Jansen3,263
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium225 claims
  2. Levothyroxine Sodium131 claims
  3. Amlodipine Besylate127 claims
  4. Omeprazole124 claims
  5. Lisinopril114 claims
  6. Rosuvastatin Calcium104 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.

Industry payments in 2024: $23.61

1 payment: food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Jansen$23.61
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Spectrum Health Primary Care PartnersMuskegon, MI

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

John Michael Jansen among 6,013 family medicine physician records in Michigan

John Michael Jansen, 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. Its NPI, issued in 2019, is newer than 79% of them.

  • NPI issued2019 · 79% of these records are older, 17% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2019 · median 2008 among the 3,493 with a school on file
  • Record last updated2023 · 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).

49 family medicine physician records list a practice address in Muskegon

They are 49 of the 2,646 NPPES records with a practice address in Muskegon, and 6,013 family medicine physician records in Michigan.

The 8 family medicine physician records with the nearest ZIP codes

  1. Shelley Anderson, MDMuskegon, MI 494451780661546
  2. Saundra Blanchard, MDMuskegon, MI 494451407854177
  3. Melissa Brown, D.O.Muskegon, MI 494451063605822
  4. Diana Davidson, MDN Muskegon, MI 494451013909878
  5. Noelle Franklyn, MDNorth Muskegon, MI 494451235145244
  6. Erwin Grasman, MDMuskegon, MI 494451780779298
  7. D'Andrea Heeres, M.D.Muskegon, MI 494451548480197
  8. Kevin Kiley, MDNorth Muskegon, MI 494451063426468

Common questions

What is John Michael Jansen, MD's NPI number?

John Michael Jansen, MD's National Provider Identifier (NPI) is 1437711520, issued on Jun 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is John Michael Jansen, MD located?

The NPPES record lists a practice address at 2009 Holton RD, Muskegon, MI, 49445. Phone: (231) 291-8399. Providers update this record themselves, so call before visiting.

How can I verify John Michael Jansen, MD's license?

NPPES lists Michigan license number 4351045672, 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 John Michael Jansen, MD prescribe under Medicare Part D?

In 2024, John Michael Jansen, MD had 3,263 Medicare Part D claims for 438 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.