Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Janice Derhaag, OTR

Occupational Therapist in Chippewa Falls, WI · enumerated 2008.

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

National Provider Identifier

1538323415

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Registry record

Entity type Individual (Type 1)

Name Janice Derhaag

Credential OTR

Sex Female

Practice address 2815 County Highway I, Chippewa Falls, WI, 54729

Phone (715) 723-9348

Enumeration date Jul 10, 2008

Last updated in NPPES Mar 31, 2010

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 4643-026 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
4643-026	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

Is NPI 1538323415 active?

Yes, as of the latest NPPES snapshot, NPI 1538323415 is active (record last updated 2010-03-31).

How do I verify Janice Derhaag's NPI record?

Cross-check NPI 1538323415 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-31.