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

Mrs. Whitney Austin Sullivan

Speech-Language Pathologist in Castle Pines, CO · enumerated 2011 · practices at Castle Pines Speech and Language LLC.

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

National Provider Identifier

1881962702

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Registry record

Entity type Individual (Type 1)

Name Mrs. Whitney Austin Sullivan

Sex Female

Practice address Castle Pines, CO, 80108

Phone (863) 206-7233

Enumeration date Dec 6, 2011

Last updated in NPPES Nov 17, 2025

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 0006642 (CO) Primary

Other identifiers

Identifier	Type	State	Issuer
GP6269	Medicaid	SC	-
SA1359	Medicaid	SC	-

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 is the NPI number for Whitney Sullivan?

The National Provider Identifier (NPI) for Whitney Sullivan is 1881962702, a Type 1 (individual) record in the CMS NPPES registry.

Where does Whitney Sullivan practice?

The practice location on file with NPPES is in Castle Pines, CO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Castle Pines Speech and Language LLC Speech-Language Pathologist · Castle Pines, CO NPI 1326908849

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-17.