James R. Posthumus, PHARM.D
Pharmacist · Portage, MI
James R. Posthumus, PHARM.D is a pharmacist with a practice address in Portage, Michigan, and NPI 1104193234, issued on Nov 17, 2011. Check the license (Michigan 5302034397, as entered in NPPES) with the Michigan board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James R. Posthumus
- Credential
- PHARM.D
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 5302034397 MI
Self-reported in NPPES; status is on the state search - Practice location
- 5933 S Westnedge Ave, Portage, MI 49002
- Phone
- (269) 381-4862
- Enumerated
- Nov 17, 2011
- Record last updated
- Feb 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (269) 381-4943
- Entity
- Type 1 · individual
Also registered at 5933 S Westnedge Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Byrne, RPHPharmacist1649547738
- Lindsey GerstlerPharmacist1477164218
- Sarah Gilbert, PHARM.D.Pharmacist1972888014
- Samuel Lehouiller, RPHPharmacist1962125435
- Mary Kalaiarasi Manuvel, RPHPharmacist1194109967
- Sabbir Miah, RPHPharmacist1073131017
Verify James R. Posthumus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5302034397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52 pharmacist records list a practice address in Portage
They are 52 of the 1,492 NPPES records with a practice address in Portage, and 8,370 pharmacist records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 52 in Portage → All 8,370 in Michigan → Every provider in Portage →
Other pharmacist records in Michigan
- Ghada Aalibrahim, PHARMDFerndale, MI1093438996
- Sharon AaronMacomb, MI1851922736
- Abdel-Salem AbadaCaledonia, MI1609586718
- Ehab AbaderHamtramck, MI1457982456
- Ivan Joseph AbadinesGrand Rapids, MI1275139164
- Omar Abazeed, PHARMDDetroit, MI1780396358
- Rania Abazeed, PHARMDDearborn, MI1184388498
- Haya AbazidDearborn Heights, MI1164344586
- Ahmad Abbas, PHARM.DGarden City, MI1811127517
- Ahmad AbbasDetroit, MI1487264362
Common questions
What is James R. Posthumus, PHARM.D's NPI number?
James R. Posthumus, PHARM.D's National Provider Identifier (NPI) is 1104193234, issued on Nov 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is James R. Posthumus, PHARM.D located?
The NPPES record lists a practice address at 5933 S Westnedge Ave, Portage, MI, 49002. Phone: (269) 381-4862. Providers update this record themselves, so call before visiting.
How can I verify James R. Posthumus, PHARM.D's license?
NPPES lists Michigan license number 5302034397, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity 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. 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.