Callahan & Associates, Ltd.
Callahan & Associates, Ltd. is a healthcare organization registered as Clinical Social Worker in Roselle, IL, holding Type 2 (organization) NPI 1255447231 since 2006. The authorized official on file is Boyd Callahan, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1255447231 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Callahan & Associates, Ltd. |
| Practice address | 701 E IRVING PARK RD, SUITE 305, Roselle, IL, 60172 |
| Phone | 6305291644 |
| Fax | 6305291792 |
| Enumeration date | 2006-08-22 |
| Last updated in NPPES | 2009-07-10 |
Authorized official
| Name | Boyd Callahan |
|---|---|
| Title | President |
| Phone | 8476982862 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1041C0700X | Clinical Social Worker | Primary | 149001980 | IL |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 02215410 | Other | IL | BLUE CROSS PROVIDER NUMBE |
Copy-ready billing details
Provider: Callahan & Associates, Ltd. NPI: 1255447231 Taxonomy: 1041C0700X (Clinical Social Worker) Address: 701 E IRVING PARK RD, SUITE 305, Roselle, IL, 60172
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1043326143 | Boyd Callahan | Individual | Clinical Social Worker | Roselle, IL |
| 1104055011 | Carolyn Callahan | Individual | Clinical Social Worker | Roselle, IL |
| 1033428438 | Gwen Ames | Individual | Clinical Social Worker | Roselle, IL |
| 1558606475 | Pathways To Change Counseling, Inc. | Organization | Clinical Social Worker | Roselle, IL |
| 1932449675 | Hooman Keshavarzi | Individual | Psychologist | Roselle, IL |
Verify this record
Cross-check NPI 1255447231 against the authoritative CMS record: view Callahan & Associates, Ltd. 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
Who is the authorized official for Callahan & Associates, Ltd.?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-07-10.