Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Leon George Schlesser, PHARMACIST

Pharmacist in Lacrosse, WI · enumerated 2011.

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

National Provider Identifier

1831476225

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Registry record

Entity type Individual (Type 1)

Name Mr. Leon George Schlesser

Credential PHARMACIST

Sex Male

Practice address 900 West Avenue South, Lacrosse, WI, 54601

Phone (608) 796-2058

Fax (608) 796-2059

Enumeration date Nov 14, 2011

Last updated in NPPES Nov 14, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 10759 (WI) 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 Leon Schlesser practice?

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

What is the NPI number for Leon Schlesser?

The National Provider Identifier (NPI) for Leon Schlesser is 1831476225, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-14.