Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen Gonsior, PHARM D

Pharmacist in Saginaw, MI · enumerated 2022 · practices at Walgreen Co.

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

National Provider Identifier

1841922580

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Registry record

Entity type Individual (Type 1)

Name Stephen Gonsior

Credential PHARM D

Sex Male

Practice address 2990 Bay Rd, Saginaw, MI, 48603

Phone (989) 497-9316

Enumeration date Jun 30, 2022

Last updated in NPPES Jun 30, 2022

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 5302413968 (MI) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

How do I verify Stephen Gonsior's NPI record?

Cross-check NPI 1841922580 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1841922580 active?

Yes, as of the latest NPPES snapshot, NPI 1841922580 is active (record last updated 2022-06-30).

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Walgreen Co Pharmacy · Saginaw, MI NPI 1528075512 Andrea Premo Pharmacist · Saginaw, MI NPI 1154605244

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-30.