Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mayra L Monterroso

Counselor in Buffalo Grove, IL · enumerated 2023.

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

National Provider Identifier

1538949516

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Registry record

Entity type Individual (Type 1)

Name Mayra L Monterroso

Sex Female

Practice address 1111 W Lake Cook Rd, Buffalo Grove, IL, 60089

Phone (847) 353-1500

Enumeration date Oct 5, 2023

Last updated in NPPES Oct 5, 2023

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers 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.

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Frequently asked questions

What is the NPI number for Mayra Monterroso?

The National Provider Identifier (NPI) for Mayra Monterroso is 1538949516, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mayra Monterroso practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-05.