Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cynthia Cossyleon

Nurse Practitioner in Aurora, IL · enumerated 2022.

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

National Provider Identifier

1417602293

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Registry record

Entity type Individual (Type 1)

Name Cynthia Cossyleon

Sex Female

Practice address 400 N Highland Ave, Aurora, IL, 60506

Phone (630) 473-8925

Enumeration date Feb 19, 2022

Last updated in NPPES Feb 19, 2022

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209024638 (IL) 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

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 Cynthia Cossyleon?

Cynthia Cossyleon is registered in NPPES with the primary taxonomy of Nurse Practitioner. 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 2022-02-19.