Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Williams

Music Therapist in Anchorage, AK · enumerated 2020.

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

National Provider Identifier

1245846476

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Registry record

Entity type Individual (Type 1)

Name Mark Williams

Sex Male

Practice address 1251 Muldoon Rd Ste 116, Anchorage, AK, 99504

Phone (907) 274-8281

Enumeration date Sep 22, 2020

Last updated in NPPES Sep 22, 2020

Taxonomy & licenses

225A00000X Music Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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 specialty is Mark Williams?

Mark Williams is registered in NPPES with the primary taxonomy of Music Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-22.