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

Allison Kroll, OT

Occupational Therapist in Appleton, WI · enumerated 2008.

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

National Provider Identifier

1043473788

Verified

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Registry record

Entity type Individual (Type 1)

Name Allison Kroll

Credential OT

Sex Female

Practice address Appleton, WI, 54914

Phone (920) 903-8545

Fax (920) 364-9172

Enumeration date Jul 2, 2008

Last updated in NPPES Jan 12, 2026

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

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 4072026 (WI) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT credential

Other identifiers

Identifier	Type	State	Issuer
40863600	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 Allison Kroll?

Allison Kroll is registered in NPPES with the primary taxonomy of Occupational Therapist. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-12.