Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marjorie L Ronchi, C.O.T.A.

Occupational Therapy Assistant in Ashland, WI · enumerated 2008.

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

National Provider Identifier

1598939050

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Registry record

Entity type Individual (Type 1)

Name Marjorie L Ronchi

Credential C.O.T.A.

Sex Female

Practice address 1635 Maple Lane, Behavioral Health Services, Ashland, WI, 54806

Phone (715) 685-5400

Fax (715) 685-5102

Enumeration date Apr 16, 2008

Last updated in NPPES Apr 16, 2008

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 913-027 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
40889500	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 specialty is Marjorie Ronchi?

Marjorie Ronchi is registered in NPPES with the primary taxonomy of Occupational Therapy Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Karen Keyes Occupational Therapist · Ashland, WI NPI 1114191756 Deborah Rock Occupational Therapy Assistant · Ashladn, WI NPI 1548434145

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-16.