Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary E Fazio, R.N.

Pediatric Oncology Registered Nurse in Shorewood, WI · enumerated 2005.

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

National Provider Identifier

1073504593

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary E Fazio

Credential R.N.

Sex Female

Practice address 4520 N Ardmore Ave, Shorewood, WI, 53211

Phone (414) 870-4121

Fax (414) 961-2435

Enumeration date Nov 3, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

163WH0200X Home Health Registered Nurse Nursing Service Providers Secondary

163WH1000X Hospice Registered Nurse Nursing Service Providers Secondary

163WP0200X Pediatric Registered Nurse Nursing Service Providers Secondary

163WP0218X Pediatric Oncology Registered Nurse Nursing Service Providers Primary

163WX0200X Oncology 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mary Fazio?

Mary Fazio is registered in NPPES with the primary taxonomy of Pediatric Oncology Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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