NPPES file of Aug 9, 2026

Joseph Kenneth Postma, M.D.

Internal Medicine Physician · Zeeland, MI

Joseph Kenneth Postma, M.D. is an internal medicine physician with a practice address in Zeeland, Michigan, and NPI 1962790170, issued on Jul 21, 2011. Check the license (Michigan 4301099039, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962790170
Name
Joseph Kenneth Postma
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4301099039 MI
Self-reported in NPPES; status is on the state search
Practice location
8333 Felch St, Zeeland, MI 49464
Phone
(616) 391-3139
Enumerated
Jul 21, 2011
Record last updated
Mar 3, 2025
Medicare enrollment
Enrolled (PECOS I20131107001754); accepts Medicare assignment
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 8333 Felch St

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

  1. Jennifer Anderson, PA-CPhysician Assistant1215129754
  2. Tessa BarksCertified Registered Nurse Anesthetist1891430187
  3. Amber Bolhuis, PAPhysician Assistant1003234410
  4. Laura Bowling, OTROccupational Therapist1407359243
  5. Matthew Brady, CRNACertified Registered Nurse Anesthetist1184681751
  6. Katelyn Bredeweg, MSN RN AGCNS-BC ONCAdult Health Clinical Nurse Specialist1518510114

Verify Joseph Kenneth Postma 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 4301099039
    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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89% fewer Medicare Part D claims than the average internal medicine physician in 2024

340 Medicare Part D claims for 106 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Joseph Postma340
  2. Specialty average3,176

Most prescribed

  1. Mounjaro81 claims
  2. Topiramate58 claims
  3. Metformin Hcl Er39 claims
  4. Naltrexone Hcl14 claims
  5. Wegovy14 claims
  6. Jardiance12 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.

The MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $831.61

38 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joseph Postma$831.61
  2. Specialty average$1,303.06

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 PartnersKentwood, MI

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

Joseph Kenneth Postma among 5,735 internal medicine physician records in Michigan

Joseph Kenneth Postma, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 57% of them.

  • NPI issued2011 · 57% of these records are older, 41% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2011 · median 2006 among the 3,564 with a school on file
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 internal medicine physician records list a practice address in Zeeland

They are 9 of the 471 NPPES records with a practice address in Zeeland, and 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Carli Donnelly, M.D.Zeeland, MI 494641013371202
  2. Michael Foster, MDZeeland, MI 494641013578145
  3. Kylie Hendges, MDZeeland, MI 494641902466071
  4. Philip Kaseska, M.D.Zeeland, MI 494641902338619
  5. Patrick Melder, MDZeeland, MI 494641780688051
  6. Ericka Singer, D.O.Zeeland, MI 494641780066795
  7. Robin Webb, MDZeeland, MI 494641851316236
  8. Nasim Yacob, MDZeeland, MI 494641861440299

Common questions

What is Joseph Kenneth Postma, M.D.'s NPI number?

Joseph Kenneth Postma, M.D.'s National Provider Identifier (NPI) is 1962790170, issued on Jul 21, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Kenneth Postma, M.D. located?

The NPPES record lists a practice address at 8333 Felch St, Zeeland, MI, 49464. Phone: (616) 391-3139. Providers update this record themselves, so call before visiting.

How can I verify Joseph Kenneth Postma, M.D.'s license?

NPPES lists Michigan license number 4301099039, 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 Joseph Kenneth Postma, M.D. prescribe under Medicare Part D?

In 2024, Joseph Kenneth Postma, M.D. had 340 Medicare Part D claims for 106 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Joseph Kenneth Postma, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.