Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lacy Diane Westfall, APRN-CNP

Women's Health Nurse Practitioner in Ardmore, OK · enumerated 2021.

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

National Provider Identifier

1184200669

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Registry record

Entity type Individual (Type 1)

Name Lacy Diane Westfall

Credential APRN-CNP

Sex Female

Practice address 1116 Walnut Dr, Ardmore, OK, 73401

Phone (580) 223-6054

Fax (580) 226-2284

Enumeration date Mar 23, 2021

Last updated in NPPES Jun 28, 2022

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 201543 (OK) Primary

163WW0101X Ambulatory Women's Health Care Registered Nurse Nursing Service Providers · License 201543 (OK) Secondary

Other identifiers

Identifier	Type	State	Issuer
201064730A	Medicaid	OK	-

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

Where does Lacy Westfall practice?

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

What is the NPI number for Lacy Westfall?

The National Provider Identifier (NPI) for Lacy Westfall is 1184200669, 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 2022-06-28.