Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William D Smith, M.D.

Neurological Surgery Physician in Las Vegas, NV · enumerated 2006.

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

National Provider Identifier

1578520532

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Registry record

Entity type Individual (Type 1)

Name Dr. William D Smith

Credential M.D.

Sex Male

Practice address 3061 S Maryland Pkwy, Suite 200, Las Vegas, NV, 89109

Phone (702) 737-1948

Fax (702) 737-7195

Enumeration date Apr 26, 2006

Last updated in NPPES Aug 2, 2013

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 7897 (NV) Primary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 22506 (AZ) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
140004333	Other	NV	RAILROAD MEDICARE
177809002	Medicaid	AZ	-
1578520532	Medicaid	NV	-

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.

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Frequently asked questions

How do I verify William Smith's NPI record?

Cross-check NPI 1578520532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578520532 active?

Yes, as of the latest NPPES snapshot, NPI 1578520532 is active (record last updated 2013-08-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-02.