NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Heidi Jane Sonnenburg

Occupational Therapist in Madison, WI · enumerated 2006.

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

National Provider Identifier

1437190592

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Registry record

Entity type Individual (Type 1)
Name Ms. Heidi Jane Sonnenburg
Sex Female
Practice address 7818 Big Sky Dr, Suite 106, Madison, WI, 53719
Fax (608) 238-5870
Enumeration date Jun 9, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 214-026 (WI) 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

How do I verify Heidi Sonnenburg's NPI record?
Cross-check NPI 1437190592 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1437190592 active?
Yes, as of the latest NPPES snapshot, NPI 1437190592 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.