IL · 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 3 of 8. 364 reports.
| Covered entity | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|
| Oak Street Health | Healthcare Provider | 3,169 | Nov 24, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
| Montrose Behavioral Health Hospital, Inc. | Healthcare Provider | 597 | Nov 24, 2023 | Hacking/IT Incident | Archive (closed) |
| Morrison Community Hospital District | Healthcare Provider | 122,488 | Nov 23, 2023 | Hacking/IT Incident | Archive (closed) |
| Rock Valley Physical Therapy Center | Healthcare Provider | 2,421 | Nov 16, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
| CareTree, Inc. | Business Associate | 15,846 | Nov 15, 2023 | Hacking/IT Incident | Archive (closed) |
| Wyndemere Senior Care LLC | Healthcare Provider | 6,832 | Nov 6, 2023 | Hacking/IT Incident | Archive (closed) |
| JDA eHealth Systems, Inc. d/b/a Parathon | Business Associate | 8,099 | Oct 27, 2023 | Hacking/IT Incident | Archive (closed) |
| Hospital Sisters Health System | Business Associate | 500 | Oct 26, 2023 | Hacking/IT Incident | Archive (closed) |
| Hospital & Medical Foundation of Paris, Inc d/b/a Horizon Health | Healthcare Provider | 16,598 | Oct 19, 2023 | Hacking/IT Incident | Archive (closed) |
| Carle Health | Healthcare Provider | 679 | Oct 5, 2023 | Hacking/IT Incident | Archive (closed) |
| Community First Medical Center | Healthcare Provider | 216,047 | Sep 26, 2023 | Hacking/IT Incident | Archive (closed) |
| Cook County Health and Hospitals System | Healthcare Provider | 1,248,546 | Sep 24, 2023 | Hacking/IT Incident | Archive (closed) |
| Blue Cross Blue Shield of Texas | Business Associate | 3,708 | Sep 22, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
| Health Care Service Corporation | Health Plan | 220,913 | Aug 21, 2023 | Hacking/IT Incident | Archive (closed) |
| Illinois Department of Public Health | Healthcare Provider | 126,000 | Aug 18, 2023 | Hacking/IT Incident | Archive (closed) |
| Advanced Reproductive Health Center Ltd., d/b/a Chicago IVF | Healthcare Provider | 2,603 | Aug 18, 2023 | Hacking/IT Incident | Archive (closed) |
| Morris Hospital & Healthcare Centers | Healthcare Provider | 256,568 | Aug 17, 2023 | Hacking/IT Incident | Archive (closed) |
| Three Crowns Park | Healthcare Provider | 516 | Aug 11, 2023 | Hacking/IT Incident | Archive (closed) |
| Lurie Children’s Surgical Foundation | Healthcare Provider | 1,997 | Aug 8, 2023 | Hacking/IT Incident | Archive (closed) |
| Paramedic Billing Services | Healthcare Clearing House | 93,610 | Jul 21, 2023 | Hacking/IT Incident | Archive (closed) |
| The Vitality Group, LLC | Business Associate | 20,387 | Jul 11, 2023 | Hacking/IT Incident | Archive (closed) |
| Activate Healthcare LLC | Healthcare Provider | 114,445 | Jun 23, 2023 | Hacking/IT Incident | Archive (closed) |
| Classic Residence Management dba Vi Senior Living | Healthcare Provider | 12,405 | Jun 2, 2023 | Hacking/IT Incident | Archive (closed) |
| Sparta Community Hospital District | Healthcare Provider | 909 | May 26, 2023 | Hacking/IT Incident | Archive (closed) |
| Culbertson Memorial Hospital | Healthcare Provider | 69,765 | May 24, 2023 | Hacking/IT Incident | Archive (closed) |
| Illinois Department of Healthcare and Family Services, Illinois Department of Human Services | Health Plan | 50,839 | May 12, 2023 | Hacking/IT Incident | Archive (closed) |
| Lake County Health Department and Community Health Center | Healthcare Provider | 23,376 | Apr 25, 2023 | Hacking/IT Incident | Archive (closed) |
| Presence Healthcare Services dba Presence Medical Group | Healthcare Provider | 921 | Apr 14, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
| WellBe Senior Medical, LLC | Business Associate | 42,020 | Apr 4, 2023 | Hacking/IT Incident | Archive (closed) |
| WellBe Senior Medical, LLC | Healthcare Provider | 19,567 | Mar 30, 2023 | Hacking/IT Incident | Archive (closed) |
| Top of the World Ranch Treatment Center | Healthcare Provider | 1,980 | Mar 14, 2023 | Hacking/IT Incident | Archive (closed) |
| Harrisburg Medical Center | Healthcare Provider | 147,826 | Feb 21, 2023 | Hacking/IT Incident | Archive (closed) |
| Troy Roeder DDS PC | Healthcare Provider | 1,127 | Feb 17, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
| Rise Interactive Media & Analytics, LLC | Business Associate | 54,509 | Feb 3, 2023 | Hacking/IT Incident | Archive (closed) |
| Benefit Administrative Systems, LLC (BAS) | Business Associate | 6,465 | Jan 27, 2023 | Hacking/IT Incident | Archive (closed) |
| Midwest Orthopaedic Consultants, S.C. | Healthcare Provider | 6,818 | Dec 22, 2022 | Hacking/IT Incident | Archive (closed) |
| CommonSpirit Health | Business Associate | 633,031 | Dec 1, 2022 | Hacking/IT Incident | Archive (closed) |
| Heartland Alliance | Business Associate | 46,694 | Nov 8, 2022 | Hacking/IT Incident | Archive (closed) |
| Illinois Department of Healthcare and Family Services, Illinois Department of Human Services | Health Plan | 480,435 | Oct 21, 2022 | Unauthorized Access/Disclosure | Archive (closed) |
| Friend Family Health Center, Inc. | Healthcare Provider | 1,419 | Oct 14, 2022 | Hacking/IT Incident | Archive (closed) |
| Springfield Clinic | Healthcare Provider | 802 | Oct 14, 2022 | Loss | Archive (closed) |
| Walgreen Co. | Healthcare Provider | 1,704 | Aug 31, 2022 | Theft | Archive (closed) |
| AdventHealth Medical Group OB GYN at Woodridge | Healthcare Provider | 2,001 | Aug 15, 2022 | Loss | Archive (closed) |
| Lawson Products, Inc. | Health Plan | 791 | Jul 26, 2022 | Hacking/IT Incident | Archive (closed) |
| Cornerstone Services | Healthcare Provider | 2,513 | Jul 8, 2022 | Hacking/IT Incident | Archive (closed) |
| Michigan Avenue Immediate Care | Healthcare Provider | 144,104 | Jun 30, 2022 | Hacking/IT Incident | Archive (closed) |
| Help at Home | Healthcare Provider | 1,905 | Jun 17, 2022 | Improper Disposal | Archive (closed) |
| Finkelstein Eye Associates | Healthcare Provider | 48,587 | May 27, 2022 | Hacking/IT Incident | Archive (closed) |
| University of Chicago Medical Center | Healthcare Provider | 2,568 | May 27, 2022 | Hacking/IT Incident | Archive (closed) |
| Aon PLC | Business Associate | 129,682 | May 26, 2022 | Hacking/IT Incident | Archive (closed) |
Source: HHS OCR Breach Portal, OCR export October 2026.