NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathleen A Lefens, APN

Nurse Practitioner in Glenview, IL · enumerated 2016.

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

National Provider Identifier

1790146405

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Kathleen A Lefens
Credential APN
Sex Female
Practice address 2180 Pfingsten Rd Ste 3000, Glenview, IL, 60026
Phone (847) 503-3000
Fax (847) 503-3500
Enumeration date Mar 9, 2016
Last updated in NPPES Mar 10, 2026

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209013995 (IL) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209013995 (IL) Primary
363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209013995 (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

Where does Kathleen Lefens practice?
The practice location on file with NPPES is in Glenview, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kathleen Lefens?
The National Provider Identifier (NPI) for Kathleen Lefens is 1790146405, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-10.