Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher Mattas, RRT

Registered Respiratory Therapist in Iron Mountain, MI · enumerated 2018 · practices at Iron Mountain Vamc.

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

National Provider Identifier

1699243923

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Registry record

Entity type Individual (Type 1)

Name Christopher Mattas

Credential RRT

Sex Male

Practice address 325 E H St, Iron Mountain, MI, 49801

Phone (906) 774-3300

Enumeration date Nov 5, 2018

Last updated in NPPES Nov 5, 2018

Taxonomy & licenses

227900000X Registered Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 4401006694 (MI) 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

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 Christopher Mattas?

Christopher Mattas is registered in NPPES with the primary taxonomy of Registered Respiratory Therapist. 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 2018-11-05.