Ms. Holly Mccarthy

Ms. Holly Mccarthy is a Behavior Analyst provider (Behavior Analyst) practicing in Oak Park, IL, registered in the NPPES registry with NPI 1124266309 since 2009.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1124266309
Entity type	Individual (Type 1)
Name	Ms. Holly Mccarthy
Sex	Female
Practice address	Oak Park, IL, 60302
Phone	6517348303
Enumeration date	2009-01-27
Last updated in NPPES	2016-06-30

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103K00000X	Behavior Analyst	Primary	—	IL

Copy-ready billing details

Provider: Holly Mccarthy
NPI: 1124266309
Taxonomy: 103K00000X (Behavior Analyst)
Address: Oak Park, IL, 60302

Verify this record

Cross-check NPI 1124266309 against the authoritative CMS record: view Ms. Holly Mccarthy on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Holly Mccarthy practice?

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

What is the NPI number for Holly Mccarthy?

The National Provider Identifier (NPI) for Holly Mccarthy is 1124266309, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2016-06-30.