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Callahan & Associates, Ltd.

Clinical Social Worker in Roselle, IL · enumerated 2006 · authorized official Boyd Callahan, President.

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

National Provider Identifier

1255447231

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Registry record

Entity type Organization (Type 2)
Legal business name Callahan & Associates, Ltd.
Practice address 701 E Irving Park Rd, Suite 305, Roselle, IL, 60172
Phone (630) 529-1644
Fax (630) 529-1792
Enumeration date Aug 22, 2006
Last updated in NPPES Jul 10, 2009

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149001980 (IL) Primary

Authorized official

Name Boyd Callahan
Title President
Phone (847) 698-2862

Other identifiers

Identifier Type State Issuer
02215410 Other IL BLUE CROSS PROVIDER NUMBE

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

Who is the authorized official for Callahan & Associates, Ltd.?
NPPES lists Boyd Callahan (President) as the authorized official for this organization.
What is the NPI number for Callahan & Associates, Ltd.?
The NPI for Callahan & Associates, Ltd. is 1255447231, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-10.