Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Samuel Nighswander, M.D. MPH

Family Medicine Physician in Anchorage, AK · enumerated 2005.

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

National Provider Identifier

1821080888

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Samuel Nighswander

Credential M.D. MPH

Sex Male

Practice address 1201 E 36th Ave, Anchorage, AK, 99508

Phone (907) 562-9229

Fax (907) 562-1603

Enumeration date Aug 16, 2005

Last updated in NPPES Aug 5, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 4060 (AK) 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.

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Frequently asked questions

What is the NPI number for Thomas Nighswander?

The National Provider Identifier (NPI) for Thomas Nighswander is 1821080888, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Nighswander practice?

The practice location on file with NPPES is in Anchorage, AK. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-05.