Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Corissa Dorian Mattson, DC

Chiropractor in Chelsea, MI · enumerated 2026 · practices at The Keiser Clinic.

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

National Provider Identifier

1386575033

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Registry record

Entity type Individual (Type 1)

Name Corissa Dorian Mattson

Credential DC

Sex Female

Practice address 400 N Main St Ste A, Chelsea, MI, 48118

Phone (734) 707-5105

Fax (734) 219-4841

Enumeration date May 28, 2026

Last updated in NPPES May 28, 2026

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2301401629 (MI) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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 Corissa Mattson practice?

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

What is the NPI number for Corissa Mattson?

The National Provider Identifier (NPI) for Corissa Mattson is 1386575033, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Nathan Keiser Neurology Chiropractor · Chelsea, MI NPI 1043532203 The Keiser Clinic Neurology Chiropractor · Chelsea, MI NPI 1821967134

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-28.