Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Jaclyn Leigh Jeffries, APRN

Nurse Practitioner in Lisle, IL · enumerated 2024.

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

National Provider Identifier

1649026683

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Registry record

Entity type Individual (Type 1)

Name Mrs. Jaclyn Leigh Jeffries

Credential APRN

Sex Female

Practice address 430 Warrenville Rd Ste 300, Lisle, IL, 60532

Phone (630) 364-7850

Fax (630) 432-6604

Enumeration date Apr 29, 2024

Last updated in NPPES Jun 14, 2024

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.028266 (IL) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

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 Jaclyn Jeffries?

Jaclyn Jeffries 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.

Other providers at this practice address

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Brian Myre Hematology & Oncology Physician · Lisle, IL NPI 1194986703 Jason Caraballo Metabolic Nutrition Registered Dietitian · Lisle, IL NPI 1568893535 Saud Siddiqui Hospice and Palliative Medicine (Family Medicine) Physician · Lisle, IL NPI 1275916918 Dawn Williams Clinical Social Worker · Lisle, IL NPI 1295119253 Emily Clapsaddle Nurse Practitioner · Lisle, IL NPI 1205360385 Matthew Weist Physician Assistant · Lisle, IL NPI 1760006365 Shanika Eberhardt Nurse Practitioner · Lisle, IL NPI 1598357188 Mikaila Levigne Physician Assistant · Lisle, IL NPI 1548962806

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-14.