NPI Portal NPI Lookup & Verification

Mary Clare Cooley, DC

Mary Clare Cooley is a Chiropractor provider (Chiropractor) practicing in Duluth, MN, registered in the NPPES registry with NPI 1003956533 since 2007. The credential DC stands for Doctor of Chiropractic. Practices at Cooley Chiropractic Clinic, Inc. (listed at the same practice address in NPPES).

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NPI 1003956533
Entity type Individual (Type 1)
Name Mary Clare Cooley
Credential DC
Sex Female
Practice address 5722 HOMESTEAD RD, Duluth, MN, 55804
Phone 2185253630
Fax 2185253630
Enumeration date 2007-02-07
Last updated in NPPES 2007-12-17

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary 2079 MN

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
70913CO Other MN BCBS
Copy-ready billing details
Provider: Mary Cooley, DC
NPI: 1003956533
Taxonomy: 111N00000X (Chiropractor)
Address: 5722 HOMESTEAD RD, Duluth, MN, 55804

Other providers at this practice address

NPI Name Type Specialty Location
1629161658 Robert Horoshak Individual General Practice Dentistry Duluth, MN
1912121708 Cooley Chiropractic Clinic, Inc. Organization Chiropractor Duluth, MN

Verify this record

Cross-check NPI 1003956533 against the authoritative CMS record: view Mary Clare Cooley on the official NPPES registry .

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 or validate an NPI number.

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 Mary Cooley?
Mary Cooley 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-12-17.