Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alex Grosinger

Student in an Organized Health Care Education/Training Program in Milwaukee, WI · enumerated 2021.

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

National Provider Identifier

1306427141

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Registry record

Entity type Individual (Type 1)

Name Alex Grosinger

Sex Male

Practice address 5000 W Chambers St, Milwaukee, WI, 53210

Phone (414) 955-4575

Enumeration date Apr 14, 2021

Last updated in NPPES Apr 14, 2021

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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

Where does Alex Grosinger practice?

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

What is the NPI number for Alex Grosinger?

The National Provider Identifier (NPI) for Alex Grosinger is 1306427141, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-14.