Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Mary J. Farner-Oren, COTA

Occupational Therapy Assistant in Edgerton, WI · enumerated 2007.

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

National Provider Identifier

1255464285

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary J. Farner-Oren

Credential COTA

Sex Female

Practice address Edgerton, WI, 53534

Phone (608) 884-8831

Enumeration date Mar 13, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 404-027 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
404-027	Other	WI	STATE LICIENCE

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 Mary Farner-Oren practice?

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

What is the NPI number for Mary Farner-Oren?

The National Provider Identifier (NPI) for Mary Farner-Oren is 1255464285, a Type 1 (individual) record in the CMS NPPES registry.

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