Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alison Yah-San Tam, D.O.

Q: What is the NPI number for Alison Tam?

The National Provider Identifier (NPI) for Alison Tam is 1053522573, a Type 1 (individual) record in the CMS NPPES registry.

Dermatology Physician in Las Vegas, NV · enumerated 2007.

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

National Provider Identifier

1053522573

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Registry record

Entity type Individual (Type 1)

Name Dr. Alison Yah-San Tam

Credential D.O.

Sex Female

Practice address Las Vegas, NV, 89113

Phone (702) 822-2100

Fax (702) 822-2105

Enumeration date May 25, 2007

Last updated in NPPES Aug 12, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 1335 (NV) Secondary

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 20A8338 (CA) Secondary

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 3795 (AZ) Secondary

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 8013A (WY) Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 1335 (NV) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

Where does Alison Tam practice?

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

What is the NPI number for Alison Tam?

The National Provider Identifier (NPI) for Alison Tam is 1053522573, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-12.