Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madison Joy Olney, MS, CCC-SLP

Speech-Language Pathologist in Pflugerville, TX · enumerated 2024.

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

National Provider Identifier

1851139091

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Registry record

Entity type Individual (Type 1)

Name Madison Joy Olney

Credential MS, CCC-SLP

Sex Female

Practice address 1112 Strickling Dr, Pflugerville, TX, 78660

Phone (512) 979-9380

Enumeration date Jul 19, 2024

Last updated in NPPES Jul 19, 2024

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 121578 (TX) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1851139091 active?

Yes — as of the latest NPPES snapshot, NPI 1851139091 is active (record last updated 2024-07-19).

How do I verify Madison Olney's NPI record?

Cross-check NPI 1851139091 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-19.