NPPES file of Aug 9, 2026

William E. Clasen, RPH

Pharmacist · Pacific, MO

William E. Clasen, RPH is a pharmacist with a practice address in Pacific, Missouri, and NPI 1083637581, issued on Jul 25, 2006. Check the license (Missouri 027974, as entered in NPPES) with the Missouri board that licenses this profession; 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
1083637581
Name
William E. Clasen
Credential
RPH
Primary taxonomy
Pharmacist 183500000X
License number
027974 MO
Self-reported in NPPES; status is on the state search
Practice location
305 Hoven Dr, Pacific, MO 63069
Phone
(636) 257-4660
Enumerated
Jul 25, 2006
Record last updated
Jul 8, 2007 (not updated in 19 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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Verify William E. Clasen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 027974    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
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4 pharmacist records list a practice address in Pacific

They are 4 of the 59 NPPES records with a practice address in Pacific, and 5,343 pharmacist records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4 in Pacific → All 5,343 in Missouri → Every provider in Pacific →

Other pharmacist records in Missouri

  1. Adrian Abadiano, PHARM.D.Belton, MO1568759363
  2. Debra Abbott, RPHMexico, MO1487960514
  3. Vickie Abbott, RPHIndependence, MO1649545971
  4. Stacey Abby, PHARMDWildwood, MO1518815125
  5. Amany AbdallahSaint Charles, MO1265309330
  6. Menatalla AbdellatifSaint Louis, MO1912749458
  7. Anosha Abdul BasirMaryland Heights, MO1609572080
  8. Alec AbelColumbia, MO1891461554
  9. Katy Abelbeck, PHARMDKansas City, MO1578846747
  10. Cynthia Abernathy, RPHO Fallon, MO1497195234

Common questions

What is William E. Clasen, RPH's NPI number?

William E. Clasen, RPH's National Provider Identifier (NPI) is 1083637581, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William E. Clasen, RPH located?

The NPPES record lists a practice address at 305 Hoven Dr, Pacific, MO, 63069. Phone: (636) 257-4660. Providers update this record themselves, so call before visiting.

How can I verify William E. Clasen, RPH's license?

NPPES lists Missouri license number 027974, as entered by the provider. Search the Missouri 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.

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.