Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Claire Curran, FNP-C

Nurse Practitioner in Oak Brook, IL · enumerated 2023.

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

National Provider Identifier

1104529791

Verified

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Registry record

Entity type Individual (Type 1)

Name Claire Curran

Credential FNP-C

Sex Female

Practice address 3011 Butterfield Rd Ste 240, Oak Brook, IL, 60523

Phone (630) 348-3840

Fax (630) 348-3841

Enumeration date Mar 23, 2023

Last updated in NPPES Sep 19, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.027193 (IL) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.027193 (IL) Primary

163W00000X Registered Nurse Nursing Service Providers · License 041.444584 (IL) Secondary

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 Claire Curran?

Claire Curran 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 2024-09-19.