Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Maria A. Mccarthy, APN-CNS

Clinical Nurse Specialist in Evanston, IL · enumerated 2023.

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

National Provider Identifier

1427757897

Verified

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Registry record

Entity type Individual (Type 1)

Name Maria A. Mccarthy

Credential APN-CNS

Sex Female

Practice address Evanston, IL, 60201

Phone (847) 570-1503

Fax (847) 733-5247

Enumeration date Feb 24, 2023

Last updated in NPPES Apr 1, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

364SP0809X Adult Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 209004221 (IL) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209004221 (IL) Secondary

364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 209004221 (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

Where does Maria Mccarthy practice?

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

What is the NPI number for Maria Mccarthy?

The National Provider Identifier (NPI) for Maria Mccarthy is 1427757897, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-01.