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Dr. William P Mcalexander, DMD

Dentist in Horn Lake, MS · enumerated 2005 · practices at Happy Smiles LLC.

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

National Provider Identifier

1720082373

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Registry record

Entity type Individual (Type 1)
Name Dr. William P Mcalexander
Credential DMD
Sex Male
Practice address 2154 Goodman Rd W, Horn Lake, MS, 38637
Phone (662) 393-9200
Enumeration date Jun 10, 2005
Last updated in NPPES May 30, 2012

Taxonomy & licenses

122300000X Dentist Dental Providers · License 3303-04 (MS) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier Type State Issuer
05702792 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.

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Frequently asked questions

Is NPI 1720082373 active?
Yes, as of the latest NPPES snapshot, NPI 1720082373 is active (record last updated 2012-05-30).
How do I verify William Mcalexander's NPI record?
Cross-check NPI 1720082373 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-30.