Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Shirley Jean Maas, R.N.

Q: What is the NPI number for Shirley Maas?

The National Provider Identifier (NPI) for Shirley Maas is 1023074150, a Type 1 (individual) record in the CMS NPPES registry.

Case Management Registered Nurse in Beaver Dam, WI · enumerated 2006.

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

National Provider Identifier

1023074150

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Registry record

Entity type Individual (Type 1)

Name Mrs. Shirley Jean Maas

Credential R.N.

Sex Female

Practice address 108 W Davis St, Beaver Dam, WI, 53916

Phone (920) 887-8183

Enumeration date Apr 26, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers Secondary

163WC0400X Case Management Registered Nurse Nursing Service Providers Primary

163WH0200X Home Health Registered Nurse Nursing Service Providers Secondary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

What is the NPI number for Shirley Maas?

The National Provider Identifier (NPI) for Shirley Maas is 1023074150, a Type 1 (individual) record in the CMS NPPES registry.

Where does Shirley Maas practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.