NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthias K Maas, DC

Chiropractor in Bellingham, WA · enumerated 2006 · practices at Fredy P Hunziker.

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

National Provider Identifier

1649235359

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Registry record

Entity type Individual (Type 1)
Name Dr. Matthias K Maas
Credential DC
Sex Male
Practice address 3200 Northwest Ave, Bellingham, WA, 98225
Phone (360) 671-5421
Fax (360) 671-3114
Enumeration date Apr 18, 2006
Last updated in NPPES Dec 27, 2016

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2462 (WA) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
350045846 Other WA RAILROAD MEDICARE
39352 Other WA LABOR & INDUSTRIES
38441 Other WA REGENCE BLUESHIELD

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 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.
What specialty is Matthias Maas?
Matthias Maas is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-27.