Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Ann Buchanan, FNP-C

Nurse Practitioner in Tulsa, OK · enumerated 2025.

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

National Provider Identifier

1942015946

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Ann Buchanan

Credential FNP-C

Sex Female

Practice address 2488 E 81st St Ste 2000, Tulsa, OK, 74137

Phone (918) 592-9020

Enumeration date Feb 8, 2025

Last updated in NPPES Jan 5, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 1184001 (TX) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 221587 (OK) 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

How do I verify Mary Buchanan's NPI record?

Cross-check NPI 1942015946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1942015946 active?

Yes, as of the latest NPPES snapshot, NPI 1942015946 is active (record last updated 2026-01-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-05.