Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maureen Ann Schlager, RN CDE

Diabetes Educator Registered Nurse in Sauk City, WI · enumerated 2019.

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

National Provider Identifier

1821554411

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Registry record

Entity type Individual (Type 1)

Name Maureen Ann Schlager

Credential RN CDE

Sex Female

Practice address 112 Helen St, Sauk City, WI, 53583

Phone (608) 643-3351

Fax (608) 643-2547

Enumeration date Feb 19, 2019

Last updated in NPPES Feb 19, 2019

Taxonomy & licenses

163WD0400X Diabetes Educator Registered Nurse Nursing Service Providers · License 21510341 (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.

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Frequently asked questions

Where does Maureen Schlager practice?

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

What is the NPI number for Maureen Schlager?

The National Provider Identifier (NPI) for Maureen Schlager is 1821554411, 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 2019-02-19.