Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. William C Krupp, RPH

Pharmacist in Flint, MI · enumerated 2022.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1003525361

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Registry record

Entity type Individual (Type 1)

Name Mr. William C Krupp

Credential RPH

Sex Male

Practice address Flint, MI, 48507

Phone (810) 232-5118

Enumeration date Nov 15, 2022

Last updated in NPPES Nov 15, 2022

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 5302025286 (MI) Primary

RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1003525361 active?

Yes — as of the latest NPPES snapshot, NPI 1003525361 is active (record last updated 2022-11-15).

How do I verify William Krupp's NPI record?

Cross-check NPI 1003525361 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Mehulkumar Patel Pharmacist · Flint, MI NPI 1427175793 Mona Patel Pharmacist · Flint, MI NPI 1457567216 Rite Aid Pharmacy · Flint, MI NPI 1033525506 Rite Aid Pharmacist · Flint, MI NPI 1528515426

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-15.