IL ยท HHS OCR reports
HIPAA breaches in Illinois
HIPAA breaches affecting 500 or more individuals reported to HHS OCR by covered entities listed in Illinois.
Reports
364
Individuals affected
22,594,404
Under investigation
28
Top type: Hacking/IT Incident
State breach notification law
Statute citation not extracted; see the state legislature website.
Timing: notify in the 'most expedient time possible and without unreasonable delay.' No specific numeric
Read the Illinois data breach notification law summaryAll reports, newest first
Page 4 of 8. 364 reports.
| Covered entity | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|
| Illinois Gastroenterology Group, PLLC | Healthcare Provider | 227,943 | Apr 22, 2022 | Hacking/IT Incident | Archive (closed) |
| Christie Business Holdings Company, P.C. | Healthcare Provider | 502,869 | Mar 25, 2022 | Hacking/IT Incident | Archive (closed) |
| Lutheran Social Services of Illinois | Healthcare Provider | 146,028 | Mar 25, 2022 | Hacking/IT Incident | Archive (closed) |
| South Shore Hospital Corporation | Healthcare Provider | 115,175 | Feb 7, 2022 | Hacking/IT Incident | Archive (closed) |
| Family Christian Health Center | Healthcare Provider | 31,000 | Jan 28, 2022 | Hacking/IT Incident | Archive (closed) |
| Walgreen Co. | Healthcare Provider | 1,471 | Jan 21, 2022 | Unauthorized Access/Disclosure | Archive (closed) |
| Caring Communities | Business Associate | 1,659 | Jan 20, 2022 | Hacking/IT Incident | Archive (closed) |
| Loyola University Medical Center | Healthcare Provider | 16,934 | Dec 30, 2021 | Hacking/IT Incident | Archive (closed) |
| Fertility Centers of Illinois, PLLC | Healthcare Provider | 79,943 | Dec 27, 2021 | Hacking/IT Incident | Archive (closed) |
| Walgreen Co. | Healthcare Provider | 1,352 | Dec 27, 2021 | Loss | Archive (closed) |
| C.E. Niehoff & Company | Health Plan | 1,509 | Dec 23, 2021 | Hacking/IT Incident | Archive (closed) |
| Daniel J. Edelman Holdings, Inc. | Health Plan | 184,500 | Dec 22, 2021 | Hacking/IT Incident | Archive (closed) |
| Chaddock | Healthcare Provider | 777 | Dec 21, 2021 | Theft | Archive (closed) |
| Surgery Group SC | Healthcare Provider | 7,646 | Dec 17, 2021 | Hacking/IT Incident | Archive (closed) |
| Bansley and Kiener, LLP | Business Associate | 70,941 | Dec 3, 2021 | Hacking/IT Incident | Archive (closed) |
| Bansley and Kiener, LLP | Business Associate | 15,814 | Dec 3, 2021 | Hacking/IT Incident | Archive (closed) |
| Bansley and Kiener, LLP | Business Associate | 2,711 | Dec 3, 2021 | Hacking/IT Incident | Archive (closed) |
| Bansley and Kiener, LLP | Business Associate | 2,297 | Dec 3, 2021 | Hacking/IT Incident | Archive (closed) |
| AMITA Health Medical Group Primary Care- Hoffman Estates | Healthcare Provider | 1,647 | Nov 30, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Consociate Health | Business Associate | 48,583 | Nov 3, 2021 | Hacking/IT Incident | Archive (closed) |
| Painters District Council No. 30 Health and Welfare Fund | Health Plan | 2,157 | Oct 25, 2021 | Hacking/IT Incident | Archive (closed) |
| Missouri Delta Medical Center | Healthcare Provider | 9,745 | Oct 21, 2021 | Hacking/IT Incident | Archive (closed) |
| Jackson County Health Department | Healthcare Provider | 1,000 | Oct 13, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| OSF HealthCare System | Healthcare Provider | 53,907 | Oct 1, 2021 | Hacking/IT Incident | Archive (closed) |
| Navistar, Inc. Health Plan and the Navistar, Inc. Retiree Health Benefit and Life Insurance Plan | Health Plan | 49,000 | Sep 24, 2021 | Hacking/IT Incident | Archive (closed) |
| Illinois Department of Human Services and Illinois Department of Healthcare and Family Services | Healthcare Provider | 1,960 | Sep 20, 2021 | Hacking/IT Incident | Archive (closed) |
| DuPage Medical Group, Ltd. | Healthcare Provider | 655,384 | Aug 30, 2021 | Hacking/IT Incident | Archive (closed) |
| Metro Infectious Disease Consultants | Healthcare Provider | 171,740 | Aug 16, 2021 | Hacking/IT Incident | Archive (closed) |
| Vision for Hope | Healthcare Provider | 5,517 | Aug 3, 2021 | Hacking/IT Incident | Archive (closed) |
| Dynamic Health Care, Inc. | Business Associate | 947 | Jul 16, 2021 | Hacking/IT Incident | Archive (closed) |
| CNA Financial Corporation | Health Plan | 5,095 | Jul 8, 2021 | Hacking/IT Incident | Archive (closed) |
| Lake County Health Department and Community Health Center | Healthcare Provider | 705 | Jul 8, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Cook County Health | Health Plan | 898 | Jul 2, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Northwestern Memorial HealthCare | Healthcare Provider | 201,197 | Jun 25, 2021 | Hacking/IT Incident | Archive (closed) |
| Carle Cancer Institute Normal | Healthcare Provider | 8,066 | Jun 25, 2021 | Hacking/IT Incident | Archive (closed) |
| Health Care Service Corp | Health Plan | 543 | Jun 15, 2021 | Hacking/IT Incident | Archive (closed) |
| Illinois Attorney General's Office | Business Associate | 501 | Jun 9, 2021 | Hacking/IT Incident | Archive (closed) |
| Walgreen Co. | Healthcare Provider | 6,498 | May 28, 2021 | Improper Disposal | Archive (closed) |
| LogicGate | Business Associate | 47,035 | May 26, 2021 | Hacking/IT Incident | Archive (closed) |
| Westwood Obstetrics and Gynecology | Healthcare Provider | 12,931 | May 21, 2021 | Hacking/IT Incident | Archive (closed) |
| Swedish Covenant Health DBA Swedish Hospital | Healthcare Provider | 4,206 | May 20, 2021 | Hacking/IT Incident | Archive (closed) |
| Jackson County Health Dept | Healthcare Provider | 800 | Apr 23, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Maestro Health, LLC | Business Associate | 18,488 | Apr 6, 2021 | Hacking/IT Incident | Archive (closed) |
| Illinois Department of Healthcare and Family Services | Health Plan | 8,848 | Mar 22, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Cancer Treatment Centers of America at Midwestern Regional Medical Center | Healthcare Provider | 104,808 | Mar 19, 2021 | Hacking/IT Incident | Archive (closed) |
| Mobile Anesthesiologists | Healthcare Provider | 65,403 | Mar 10, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| The Board of Trustees of Southern Illinois University, for and on behalf of its School of Medicine, and SIU Physicians & Surgeons, Inc. | Healthcare Provider | 40,330 | Mar 5, 2021 | Hacking/IT Incident | Archive (closed) |
| Walgreen Company | Healthcare Provider | 16,089 | Jan 8, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Northwestern Memorial Hospital | Healthcare Provider | 682 | Dec 30, 2020 | Unauthorized Access/Disclosure | Archive (closed) |
| AMITA Health | Healthcare Provider | 261,054 | Dec 3, 2020 | Hacking/IT Incident | Archive (closed) |
Source: HHS OCR Breach Portal, OCR export October 2026.