Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ariel Anne Sullivan

Case Manager/Care Coordinator in Redwood City, CA · enumerated 2022.

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

National Provider Identifier

1649981713

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Registry record

Entity type Individual (Type 1)

Name Ariel Anne Sullivan

Sex Female

Practice address 240 Edmonds Rd., Building D, Redwood City, CA, 94062

Phone (669) 306-2983

Enumeration date Dec 9, 2022

Last updated in NPPES Sep 25, 2024

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Primary

172V00000X Community Health Worker Other Service Providers Secondary

Other identifiers

Identifier	Type	State	Issuer
10255049	Other	CA	KAISER PEMANENTE

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 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.

What specialty is Ariel Sullivan?

Ariel Sullivan is registered in NPPES with the primary taxonomy of Case Manager/Care Coordinator. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-25.