Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Elizabeth Williams, APRN

Critical Care Neonatal Nurse Practitioner in Cantonment, FL · enumerated 2025.

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

National Provider Identifier

1346049996

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Registry record

Entity type Individual (Type 1)

Name Mary Elizabeth Williams

Credential APRN

Sex Female

Practice address 854 Jesse Dr, Cantonment, FL, 32533

Phone (850) 497-3895

Enumeration date Mar 7, 2025

Last updated in NPPES Mar 7, 2025

Taxonomy & licenses

363LN0005X Critical Care Neonatal Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 11038080 (FL) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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 Mary Williams?

The National Provider Identifier (NPI) for Mary Williams is 1346049996, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Williams practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-07.