Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary Frances Piercy, CFNP

Q: What is the NPI number for Mary Piercy?

The National Provider Identifier (NPI) for Mary Piercy is 1578542270, a Type 1 (individual) record in the CMS NPPES registry.

Family Nurse Practitioner in Winslow, AZ · enumerated 2006.

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

National Provider Identifier

1578542270

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary Frances Piercy

Credential CFNP

Sex Female

Practice address 500 Indiana Ave, Winslow, AZ, 86047

Phone (928) 289-4646

Enumeration date Jan 11, 2006

Last updated in NPPES Jun 5, 2011

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.002075 (IL) 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

What is the NPI number for Mary Piercy?

The National Provider Identifier (NPI) for Mary Piercy is 1578542270, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Piercy practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-05.