Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Diane Marie Tyrrell, TVI

Developmental Therapist in Sycamore, IL · enumerated 2007.

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

National Provider Identifier

1831371756

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Registry record

Entity type Individual (Type 1)

Name Ms. Diane Marie Tyrrell

Credential TVI

Sex Female

Practice address 245 W Exchange St Ste 4, Sycamore, IL, 60178

Phone (815) 895-9227

Fax (815) 895-2971

Enumeration date Dec 3, 2007

Last updated in NPPES Dec 3, 2007

Taxonomy & licenses

222Q00000X Developmental Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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

What is the NPI number for Diane Tyrrell?

The National Provider Identifier (NPI) for Diane Tyrrell is 1831371756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diane Tyrrell practice?

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

Other providers at this practice address

Browse all →

Darla Blackbourn Specialist · Sycamore, IL NPI 1356564793 Carol Johnson Developmental Therapist · Sycamore, IL NPI 1649484882 Pamela Miller Developmental Therapist · Sycamore, IL NPI 1871707802

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-03.