Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ann Agustsson Mathers, D.O.

Specialist in Rockford, IL · enumerated 2006.

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

National Provider Identifier

1417912411

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Registry record

Entity type Individual (Type 1)

Name Dr. Ann Agustsson Mathers

Credential D.O.

Sex Female

Practice address 1601 Parkview Ave, Rockford, IL, 61107

Phone (815) 395-5870

Fax (815) 395-5750

Enumeration date Apr 20, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 036039266 (IL) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
036039266	Other	IL	STATE MEDICAL LICENSE

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 Ann Agustsson Mathers practice?

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

What is the NPI number for Ann Agustsson Mathers?

The National Provider Identifier (NPI) for Ann Agustsson Mathers is 1417912411, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.