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

Olivia S Seng

Occupational Therapist in Milwaukee, WI · enumerated 2019.

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

National Provider Identifier

1255994000

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Registry record

Entity type Individual (Type 1)
Name Olivia S Seng
Sex Female
Practice address Milwaukee, WI, 53223
Phone (309) 397-4416
Enumeration date Apr 17, 2019
Last updated in NPPES Nov 26, 2024

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

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 096.004901 (IL) Secondary
225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 8754-26 (WI) Primary

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.

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Frequently asked questions

What is the NPI number for Olivia Seng?
The National Provider Identifier (NPI) for Olivia Seng is 1255994000, a Type 1 (individual) record in the CMS NPPES registry.
Where does Olivia Seng practice?
The practice location on file with NPPES is in Milwaukee, WI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-26.