Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dianna M. Mowdy

Family Nurse Practitioner in Guymon, OK · enumerated 2019 · practices at Williams Medical Group Practice, LLC.

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

National Provider Identifier

1487111712

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Registry record

Entity type Individual (Type 1)

Name Dianna M. Mowdy

Sex Female

Practice address 2215 N Highway 64, Guymon, OK, 73942

Phone (580) 754-2280

Fax (580) 754-2281

Enumeration date Feb 22, 2019

Last updated in NPPES Mar 13, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License R0117737 (OK) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F09191729 (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 Dianna Mowdy's NPI record?

Cross-check NPI 1487111712 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1487111712 active?

Yes, as of the latest NPPES snapshot, NPI 1487111712 is active (record last updated 2026-03-13).

Other providers at this practice address

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Corina Ramirez Family Nurse Practitioner · Guymon, OK NPI 1396243077 Mary Ruiz Family Nurse Practitioner · Guymon, OK NPI 1841808862 Williams Medical Group Practice, LLC Rural Health Clinic/Center · Guymon, OK NPI 1811567654

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