Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Courtney Ann Leinen, PMHNP-BC

Nurse Practitioner in Evanston, IL · enumerated 2022.

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

National Provider Identifier

1679201198

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Registry record

Entity type Individual (Type 1)

Name Courtney Ann Leinen

Credential PMHNP-BC

Sex Female

Practice address 501 Davis St, Evanston, IL, 60201

Phone (312) 815-9660

Enumeration date Aug 11, 2022

Last updated in NPPES Feb 5, 2023

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.025845 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Courtney Leinen?

The National Provider Identifier (NPI) for Courtney Leinen is 1679201198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Courtney Leinen practice?

The practice location on file with NPPES is in Evanston, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-05.