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

Gregory Shaffer Jr.

Pharmacist in Saint Johns, MI · enumerated 2025.

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

National Provider Identifier

1649063462

Verified

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Registry record

Entity type Individual (Type 1)

Name Gregory Shaffer Jr.

Sex Male

Practice address Saint Johns, MI, 48879

Phone (989) 224-8155

Enumeration date May 24, 2025

Last updated in NPPES Mar 2, 2026

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 5315229591 (MI) Primary

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

What is the NPI number for Gregory Shaffer?

The National Provider Identifier (NPI) for Gregory Shaffer is 1649063462, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Shaffer practice?

The practice location on file with NPPES is in Saint Johns, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-02.