Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Billy R Windham, FNP

Family Nurse Practitioner in Hattiesburg, MS · enumerated 2006.

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

National Provider Identifier

1649380940

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Billy R Windham

Credential FNP

Sex Male

Practice address 103 Medical Park Fl 2, Hattiesburg, MS, 39401

Phone (601) 268-5630

Fax (601) 579-3285

Enumeration date Aug 30, 2006

Last updated in NPPES May 9, 2024

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R810054 (MS) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 810054 (MS) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier	Type	State	Issuer
640507572KX	Other	MS	AMERICAN ADMIN GROUP
00114640	Medicaid	MS	-

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 Billy Windham's NPI record?

Cross-check NPI 1649380940 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649380940 active?

Yes, as of the latest NPPES snapshot, NPI 1649380940 is active (record last updated 2024-05-09).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-09.