NPI Portal NPI Lookup & Verification

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

Mercedes Frierson

Clinical Social Worker in Chicago, IL · enumerated 2012 · practices at Action To Healing, LLC.

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

National Provider Identifier

1053663609

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Registry record

Entity type Individual (Type 1)
Name Mercedes Frierson
Sex Female
Practice address Chicago, IL, 60601
Enumeration date Oct 5, 2012
Last updated in NPPES Sep 3, 2025

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149.028686 (IL) Primary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 121472 (CA) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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.

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Frequently asked questions

Where does Mercedes Frierson practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mercedes Frierson?
The National Provider Identifier (NPI) for Mercedes Frierson is 1053663609, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-03.