NPI Portal NPI Lookup & Verification

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

Mrs. Maria Agnes A. Perez, APN-CNP

Nurse Practitioner in Wauconda, IL · enumerated 2016.

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

National Provider Identifier

1639523129

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Maria Agnes A. Perez
Credential APN-CNP
Sex Female
Practice address Wauconda, IL, 60084
Enumeration date Apr 20, 2016
Last updated in NPPES May 21, 2026

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209013836 (IL) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209013836 (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 Agnes Perez practice?
The practice location on file with NPPES is in Wauconda, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Maria Agnes Perez?
The National Provider Identifier (NPI) for Maria Agnes Perez is 1639523129, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-21.