Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Tanya Rae Wiltzius, COTA

Occupational Therapy Assistant in Manitowoc, WI · enumerated 2008.

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

National Provider Identifier

1417128786

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Registry record

Entity type Individual (Type 1)

Name Mrs. Tanya Rae Wiltzius

Credential COTA

Sex Female

Practice address 2300 Western Ave, Manitowoc, WI, 54220

Phone (920) 320-4235

Enumeration date Mar 14, 2008

Last updated in NPPES Oct 22, 2014

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2051-027 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
41057700	Medicaid	WI	-

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

What is the NPI number for Tanya Wiltzius?

The National Provider Identifier (NPI) for Tanya Wiltzius is 1417128786, a Type 1 (individual) record in the CMS NPPES registry.

Where does Tanya Wiltzius practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-22.