MT ยท HHS OCR reports
HIPAA breaches in Montana
HIPAA breaches affecting 500 or more individuals reported to HHS OCR by covered entities listed in Montana.
Reports
36
Individuals affected
1,865,004
Under investigation
1
Top type: Hacking/IT Incident
State breach notification law
This state has 3 separate breach notification statutes
Timing: Without unreasonable delay Montana requires businesses to notify affected individuals without
Read the Montana data breach notification law summaryAll reports, newest first
Page 1 of 1. 36 reports.
| Covered entity | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|
| Sapphire Community Health | Healthcare Provider | 5,617 | Oct 17, 2025 | Hacking/IT Incident | Archive (closed) |
| Western Montana Clinic PC | Healthcare Provider | 8,255 | Aug 1, 2025 | Hacking/IT Incident | Archive (closed) |
| Community Hospital of Anaconda | Healthcare Provider | 21,243 | May 19, 2025 | Hacking/IT Incident | Under investigation |
| Sidney Health Center | Healthcare Provider | 1,370 | Jan 3, 2025 | Unauthorized Access/Disclosure | Archive (closed) |
| Western Montana Mental Health Center | Healthcare Provider | 86,758 | Nov 14, 2024 | Hacking/IT Incident | Archive (closed) |
| Planned Parenthood of Montana | Healthcare Provider | 56,917 | Nov 5, 2024 | Hacking/IT Incident | Archive (closed) |
| miCare Health Center | Healthcare Provider | 2,766 | Oct 11, 2024 | Hacking/IT Incident | Archive (closed) |
| Johnson & Associates, Inc. | Business Associate | 4,600 | Jul 10, 2024 | Hacking/IT Incident | Archive (closed) |
| Advanced Care Hospital of Montana | Healthcare Provider | 2,331 | Apr 2, 2024 | Hacking/IT Incident | Archive (closed) |
| Lone Peak Physical Therapy, Inc. | Healthcare Provider | 5,809 | Dec 21, 2023 | Theft | Archive (closed) |
| Partnership Health Center | Healthcare Provider | 8,331 | Jun 29, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
| EasterSeals-Goodwill of the Northern Rocky Mountains | Healthcare Provider | 3,886 | Sep 16, 2022 | Hacking/IT Incident | Archive (closed) |
| Northern Rockies Orthopaedics | Healthcare Provider | 6,701 | May 17, 2022 | Hacking/IT Incident | Archive (closed) |
| Logan Health Medical Center | Healthcare Provider | 213,543 | Feb 22, 2022 | Hacking/IT Incident | Archive (closed) |
| Benefis Hospitals Inc | Healthcare Provider | 81,043 | Jul 27, 2021 | Hacking/IT Incident | Archive (closed) |
| Glacier Medical Associates | Healthcare Provider | 3,007 | Jun 7, 2021 | Hacking/IT Incident | Archive (closed) |
| Sapphire Community Health | Healthcare Provider | 3,751 | Apr 21, 2021 | Hacking/IT Incident | Archive (closed) |
| River City Whole Health, Ltd. | Healthcare Provider | 2,714 | Mar 20, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Renew Wellness Center, PLLC | Healthcare Provider | 730 | Mar 23, 2020 | Theft | Archive (closed) |
| Kalispell Regional Healthcare | Healthcare Provider | 149,661 | Oct 22, 2019 | Hacking/IT Incident | Archive (closed) |
| Acadia Montana Treatment Center | Healthcare Provider | 14,794 | May 17, 2019 | Hacking/IT Incident | Archive (closed) |
| Rocky Boy Health Center | Healthcare Provider | 6,000 | Feb 21, 2019 | Theft | Archive (closed) |
| Billings Clinic | Healthcare Provider | 9,417 | Jul 13, 2018 | Hacking/IT Incident | Archive (closed) |
| Associated Dermatology & Skin Cancer Clinic of Helena, PC | Healthcare Provider | 1,254 | Jun 28, 2018 | Theft | Archive (closed) |
| Billings Clinic | Healthcare Provider | 949 | Apr 27, 2018 | Hacking/IT Incident | Archive (closed) |
| Western Health Screening | Business Associate | 15,326 | Apr 14, 2017 | Theft | Archive (closed) |
| Bozeman Health Deaconess Hospital | Healthcare Provider | 1,124 | Mar 21, 2016 | Unauthorized Access/Disclosure | Archive (closed) |
| New West Health Services d/b/a New West Medicare | Health Plan | 28,209 | Jan 15, 2016 | Loss | Archive (closed) |
| Urology Associates, Professional Corporation | Healthcare Provider | 6,500 | Jul 24, 2015 | Unauthorized Access/Disclosure | Archive (closed) |
| Western Montana Clinic | Healthcare Provider | 7,038 | Apr 2, 2015 | Hacking/IT Incident | Archive (closed) |
| Montana Department of Public Health & Human Services | Health Plan | 1,062,509 | Jul 7, 2014 | Hacking/IT Incident | Archive (closed) |
| Yellowstone Boys and Girls Ranch | Healthcare Provider | 543 | Mar 24, 2014 | Loss | Archive (closed) |
| Shiloh Medical Clinic | Healthcare Provider | 1,900 | Dec 17, 2013 | Unauthorized Access/Disclosure | Archive (closed) |
| Karen Kietzman | Healthcare Provider | 708 | Jun 22, 2012 | Theft | Archive (closed) |
| RightNow Technologies | Business Associate | 2,700 | Jan 11, 2012 | Unauthorized Access/Disclosure | Archive (closed) |
| Ortho Montana, PSC | Healthcare Provider | 37,000 | Feb 8, 2011 | Theft | Archive (closed) |
Source: HHS OCR Breach Portal, OCR export October 2026.