Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Caroline Kay Williamson, OTR L
Occupational Therapist in Hudson, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043379910
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 473L7WI | Other | MN | BCBS MN |
| 41042100 | Medicaid | WI | - |
| 640671046996 | Other | - | PREFERRED ONE |
| 167861 | Other | - | AETNA |
| 6406907 | Other | - | MEDICA |
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.
Frequently asked questions
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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.