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Sullivan Fross, PTA

Physical Therapy Assistant in Irvine, CA · enumerated 2021 · practices at Crystal Fernandez.

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

National Provider Identifier

1649936212

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Registry record

Entity type Individual (Type 1)
Name Sullivan Fross
Credential PTA
Sex Female
Practice address 4950 Barranca Pkwy Ste 302, Irvine, CA, 92604
Phone (949) 346-1486
Enumeration date Nov 9, 2021
Last updated in NPPES Nov 9, 2021

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 51500 (CA) 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 specialty is Sullivan Fross?
Sullivan Fross is registered in NPPES with the primary taxonomy of Physical Therapy Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-09.