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JOANN HAMMACK
NPI 1427780394
Social Worker - Clinical in Rockford, IL

Active since June 28, 2022
555 S PERRYVILLE RD, ROCKFORD, IL 61108(608) 313-5442 Get Directions Write a Review

NPPES record last updated: June 27, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Joann Hammack NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOANN HAMMACK (NPI 1427780394) is an individual clinical provider in Rockford, Illinois, licensed in Illinois (149.029930) and active in the NPI registry since June 2022. She maintains 2 additional practice locations.

NPPES Registry Identity

NPI1427780394
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameJOANN HAMMACK
Location Address555 S PERRYVILLE RDRockford, IL 61108-2522
Mailing Address10059 Lismore RdRoscoe, IL 61073-6422 · (815) 914-4599
Phone(608) 313-5442
Sole ProprietorNo
Enumeration DateJune 28, 2022
Last NPPES UpdateJune 27, 2026
NPPES CertifiedJune 27, 2026
✔ NPI 1427780394 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in IL · 149.029930
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
555 S PERRYVILLE RD, Rockford, IL 61108
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Secondary Practice Locations 2

Location 1524 W Stephenson St Ste 216Freeport, IL 61032-5049 · Phone (815) 201-2762
Location 210059 Lismore RdRoscoe, IL 61073-6422 · Phone (815) 988-8104

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BLOOM THERAPEUTICS, LLC
Social Worker (Clinical)
555 S PERRYVILLE RD
ROCKFORD, IL 61108
Winnebago County (815) 262-7390

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joann Hammack's NPI number?

The NPI number for Joann Hammack is 1427780394. It was assigned to this individual provider in the NPPES registry on June 28, 2022.

Where is Joann Hammack located?

Joann Hammack practices at 555 S Perryville Rd, Rockford, IL 61108. The listed phone number is (608) 313-5442.

What is Joann Hammack's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Joann Hammack was last updated on June 27, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.