Geography
Michigan: 238 healthcare breach filings.
Michigan entities have reported 238 breaches of 500 or more individuals to HHS since 2009, the 9th most of the 52 states and territories on the register, covering 16,122,909 individuals (21st by people affected). 23 are still under investigation. Hacking/IT Incident is the breach type on 62% of them, and network server the most common location (45%).
Filings
238
9th of 52 states and territories
Individuals affected
16,122,909
Median filing 3,754
Largest filing
3,320,726
Trinity Health, 2020
Hacking / IT share
62%
72 filings involve a business associate
Direct answer / Michigan on the HHS portal
The largest Michigan filing is Trinity Health (3,320,726 individuals, submitted 14 September 2020). The busiest year was 2025 with 27 filings. Healthcare Providers account for 70% of the state's filings. 74 filings of 10,000 or more individuals have their own page; the remaining 164 are listed in the table at the foot of this page.
Section MI.1 / Largest filings
Ten largest Michigan breaches
| # | Covered entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|---|
| 1 | Trinity Health | Business Associate | 3,320,726 | 14 Sep 2020 | |||
| 2 | McLaren Health Care | Healthcare Provider | 2,103,881 | 20 Oct 2023 | |||
| 3 | Great Expressions Dental Centers | Healthcare Provider | 1,925,397 | 12 May 2023 | |||
| 4 | Wolverine Solutions Group | Business Associate | 1,024,731 | 28 Dec 2018 | |||
| 5 | Wright & Filippis LLC | Healthcare Provider | 877,584 | 18 Nov 2022 | |||
| 6 | McLaren Health CareOpen | Healthcare Provider | 743,131 | 24 Jun 2025 | |||
| 7 | Morley Companies, Inc. | Business Associate | 659,194 | 1 Feb 2022 | |||
| 8 | Trinity Health | Business Associate | 586,869 | 5 Apr 2021 | |||
| 9 | Airway Oxygen, Inc. | Healthcare Provider | 500,000 | 16 Jun 2017 | |||
| 10 | St Clair Orthopaedics & Sports Medicine | Healthcare Provider | 340,000 | 30 Jan 2025 |
Section MI.2 / By year
Michigan filings by submission year
Each year links to the national year page.
| Year | Filings | Individuals affected | Hacking / IT share | Filings with a page |
|---|---|---|---|---|
| 2009 | 2 | 10,646 | 0% | 1 |
| 2010 | 6 | 110,493 | 0% | 2 |
| 2011 | 6 | 21,440 | 33% | 1 |
| 2012 | 5 | 11,661 | 20% | 0 |
| 2013 | 1 | 3,947 | 100% | 0 |
| 2014 | 8 | 22,633 | 0% | 0 |
| 2015 | 5 | 32,930 | 40% | 1 |
| 2016 | 10 | 57,094 | 30% | 2 |
| 2017 | 14 | 677,235 | 29% | 3 |
| 2018 | 11 | 1,085,042 | 55% | 2 |
| 2019 | 17 | 57,066 | 47% | 1 |
| 2020 | 22 | 3,673,831 | 59% | 7 |
| 2021 | 24 | 1,052,998 | 100% | 7 |
| 2022 | 25 | 2,350,034 | 80% | 14 |
| 2023 | 18 | 4,528,060 | 100% | 11 |
| 2024 | 21 | 405,037 | 71% | 6 |
| 2025 | 27 | 1,817,111 | 78% | 12 |
| 2026 | 16 | 205,651 | 63% | 4 |
Section MI.3 / Composition
Breach type, location and who filed
Multi-valued fields count once per value.
Type of breach
Location of breached information
Covered entity type
Section MI.4 / Notification law
What Michigan law required alongside HIPAA
State notification statute
Michigan: MCL 445.72
Identity Theft Protection Act
- Notice to individuals
- Without unreasonable delay
- Attorney general threshold
- Not currently required (pending SB 360 would require it at 100+ residents)
- Private right of action
- No: No PROA under the statute; other theories such as negligence may apply
- Penalty
- Up to $250 per failed notification, capped at $750,000 per breach event
The HIPAA Breach Notification Rule runs alongside the state statute: notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery.
Section MI.5 / Filing pages
74 filings of 10,000 or more individuals
Each links to a page with the full filing, its rank in the state and year, OCR's closing summary where the case is archived, peers, and the modelled cost.
Section MI.6 / All other filings
164 filings below 10,000 individuals
Listed in full from the HHS export, largest first. These filings do not have their own page.
| Covered entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|
| Sturgis Hospital | Healthcare Provider | 77,771 | 18 Sep 2025 | |||
| H.E.L.P. Financial Corporation | Business Associate | 9,475 | 3 Dec 2010 | |||
| IVF Michigan, P.C. | Healthcare Provider | 9,383 | 18 Jul 2023 | |||
| Cornerstone Municipal Advisory Group LLC dba Manquen Vance | Business Associate | 9,202 | 2 Apr 2021 | |||
| Waterford Surgical CenterOpen | Healthcare Provider | 9,000 | 30 Mar 2026 | |||
| Bronson Healthcare Group | Healthcare Provider | 8,256 | 5 Dec 2017 | |||
| Northern Eye Care Associates, P.C. | Healthcare Provider | 7,873 | 28 Apr 2022 | |||
| Dr. Erick PerroudOpen | Healthcare Provider | 7,692 | 10 Jun 2026 | |||
| FireKeepers Casino Hotel | Health Plan | 7,666 | 3 Jul 2015 | |||
| Midmark RTLS Solutions, Inc. | Business Associate | 7,422 | 5 May 2020 | |||
| Advantage Benefits Group | Business Associate | 7,147 | 6 Apr 2022 | |||
| CRG Lynwood, LLC, d/b/a Lynwood Manor | Healthcare Provider | 6,566 | 10 Jun 2024 | |||
| U.S. Health Holdings, Ltd. o/b/o Macomb County, Michigan | Health Plan | 6,302 | 1 Oct 2014 | |||
| Harris Eye Care | Healthcare Provider | 6,267 | 8 Aug 2023 | |||
| Covenant Medical Center, Inc. | Healthcare Provider | 6,197 | 20 Jan 2017 | |||
| Marian Village Corporation, d/b/a/ Marywood Nursing Care Center ("Marywood") | Healthcare Provider | 6,178 | 24 Jan 2024 | |||
| Beaumont Health | Healthcare Provider | 6,073 | 28 Jul 2020 | |||
| Trinity Health | Business Associate | 5,905 | 13 May 2026 | |||
| Ascension St. Joseph Hospital | Healthcare Provider | 5,807 | 7 May 2021 | |||
| Henry Ford Health System | Healthcare Provider | 5,590 | 20 Feb 2019 | |||
| Northwood, Inc | Business Associate | 5,563 | 15 Jul 2019 | |||
| University of Michigan/Michigan Medicine | Healthcare Provider | 5,466 | 16 Aug 2019 | |||
| Health Dimensions | Healthcare Provider | 5,370 | 16 Jan 2014 | |||
| East Paris Internal Medicine Associates, PC | Healthcare Provider | 5,239 | 22 Nov 2024 | |||
| Continental Cafe Holdings, LLC Health Plan | Health Plan | 5,039 | 27 Nov 2024 | |||
| Northwood, Inc. | Business Associate | 5,000 | 12 Jul 2019 | |||
| Lansing Community College | Business Associate | 5,000 | 11 Jul 2011 | |||
| Associated EndocrinologistsOpen | Healthcare Provider | 4,979 | 29 Jul 2026 | |||
| Complete Care Rehab LLC | Healthcare Provider | 4,764 | 8 Jul 2025 | |||
| Paragon Health, P.C. | Healthcare Provider | 4,674 | 16 Sep 2019 | |||
| PAR Rehab | Healthcare Provider | 4,300 | 21 Mar 2025 | |||
| Health Management Systems of AmericaOpen | Healthcare Provider | 4,213 | 27 Oct 2025 | |||
| Michigan Masonic Home | Healthcare Provider | 4,189 | 16 Sep 2024 | |||
| Richard Switzer MD PC | Healthcare Provider | 4,100 | 23 Dec 2012 | |||
| Complete Chiropractic & Bodywork Therapies | Healthcare Provider | 4,082 | 17 May 2016 | |||
| North Ottawa Community Health System | Healthcare Provider | 4,013 | 16 Dec 2019 | |||
| Ferris State University MI College of Optometry | Healthcare Provider | 3,947 | 23 Oct 2013 | |||
| Blue Cross Blue Shield of Michigan | Health Plan | 3,903 | 17 Mar 2015 | |||
| Family Fare LLC | Healthcare Provider | 3,892 | 11 Feb 2022 | |||
| InfuSystem, Inc. | Healthcare Provider | 3,882 | 22 Jun 2018 | |||
| Northwood, Inc. | Business Associate | 3,881 | 16 Jul 2019 | |||
| PrintComm, Inc. | Business Associate | 3,864 | 2 Jan 2025 | |||
| Special Tree Ltd. | Healthcare Provider | 3,820 | 20 Mar 2025 | |||
| Renee Applebaum Phd Pc | Healthcare Provider | 3,800 | 24 May 2020 | |||
| Integrated Services of Kalamazoo | Healthcare Provider | 3,754 | 10 Nov 2021 | |||
| The Center for Neuropsychology and Learning, PCOpen | Healthcare Provider | 3,722 | 9 Jan 2026 | |||
| Henry Ford Hospital | Healthcare Provider | 3,700 | 15 Nov 2010 | |||
| University of Michigan/Michigan Medicine | Healthcare Provider | 3,624 | 28 Sep 2018 | |||
| ProMedica Bixby Hospital | Healthcare Provider | 3,472 | 12 Nov 2020 | |||
| Michigan Facial Aesthetic Surgeons d/b/a University Physician Group | Healthcare Provider | 3,467 | 28 Apr 2017 | |||
| Detroit Wayne Integrated Health NetworkOpen | Healthcare Provider | 3,347 | 18 Oct 2024 | |||
| Beacon Specialized Living | Healthcare Provider | 3,338 | 13 Jul 2023 | |||
| Sterling Area Health Center | Healthcare Provider | 3,336 | 15 Apr 2021 | |||
| Michigan Masonic Home | Healthcare Provider | 3,255 | 8 Nov 2024 | |||
| Region IV Area Agency on Aging | Health Plan | 3,171 | 29 Nov 2021 | |||
| Ingham County Medical Care Facility, d/b/a Dobie Road | Healthcare Provider | 3,078 | 5 Jan 2025 | |||
| Jupiter Family Medicine PC | Healthcare Provider | 3,000 | 5 Jun 2025 | |||
| RevSpring, Inc. | Business Associate | 3,000 | 6 Jan 2014 | |||
| Oakland Vision Services, PC | Healthcare Provider | 3,000 | 3 May 2012 | |||
| University of Michigan/Michigan Medicine | Healthcare Provider | 2,921 | 3 Mar 2022 | |||
| Insurance Data Services | Business Associate | 2,918 | 8 Oct 2015 | |||
| Health Alliance Plan | Health Plan | 2,814 | 5 Jul 2018 | |||
| Karmanos Cancer Center | Healthcare Provider | 2,808 | 10 Mar 2016 | |||
| MidMichigan Health Services | Healthcare Provider | 2,800 | 7 May 2021 | |||
| Henry Ford Health System | Healthcare Provider | 2,777 | 5 Nov 2012 | |||
| Henry Ford Hospital | Healthcare Provider | 2,777 | 23 Feb 2011 | |||
| Clarkston Chiropractic Sports & WellnessOpen | Healthcare Provider | 2,757 | 11 Jun 2025 | |||
| Dyras Dental | Healthcare Provider | 2,745 | 5 Mar 2021 | |||
| Trinity HealthOpen | Business Associate | 2,740 | 13 Mar 2026 | |||
| Hackley Community Care Center | Healthcare Provider | 2,644 | 8 Feb 2021 | |||
| Michigan Department of Community Health | Healthcare Provider | 2,595 | 3 Apr 2014 | |||
| Mercy Health Physician Partners | Healthcare Provider | 2,487 | 10 Feb 2020 | |||
| Trinity Health System | Business Associate | 2,480 | 10 Jun 2026 | |||
| Henry Ford Health System | Healthcare Provider | 2,336 | 9 Jan 2015 | |||
| University of Michigan Health Plan | Health Plan | 2,315 | 26 Feb 2026 | |||
| Nihal Saran, MD | Healthcare Provider | 2,300 | 4 Jun 2010 | |||
| Group Health Plan of Hurley Medical Center | Health Plan | 2,289 | 16 Jun 2014 | |||
| Kent County Community Mental Health Authority | Healthcare Provider | 2,284 | 21 Dec 2018 | |||
| Sacred Heart Rehabilitation Center | Healthcare Provider | 2,266 | 10 Jan 2019 | |||
| McLaren Oakland | Healthcare Provider | 2,219 | 8 Oct 2020 | |||
| W. Christopher Bryant DDS PC | Healthcare Provider | 2,200 | 17 Mar 2016 | |||
| kmj Health Solutions | Business Associate | 2,191 | 28 Feb 2024 | |||
| 44NorthOpen | Business Associate | 2,158 | 16 Feb 2026 | |||
| Priority Health | Health Plan | 2,112 | 14 Feb 2022 | |||
| Henry Ford HealthOpen | Healthcare Provider | 1,984 | 26 Nov 2025 | |||
| City of Detroit Health Department | Healthcare Provider | 1,945 | 27 Apr 2020 | |||
| NLB Corporation | Health Plan | 1,943 | 26 May 2022 | |||
| MidMichigan Medical Center-Alpena | Healthcare Provider | 1,900 | 19 Dec 2017 | |||
| Area Agency of Aging 1-B | Healthcare Provider | 1,741 | 13 Apr 2017 | |||
| Area Agency of Aging 1-B | Healthcare Provider | 1,741 | 13 Apr 2017 | |||
| Ascension Standish Hospital | Healthcare Provider | 1,705 | 7 May 2021 | |||
| Henry Ford Health System | Healthcare Provider | 1,658 | 10 Apr 2018 | |||
| DataStat, Inc. | Business Associate | 1,650 | 8 Aug 2022 | |||
| Rainbow Rehabilitation Centers, Inc | Healthcare Provider | 1,639 | 19 Feb 2021 | |||
| Mott Community College | Health Plan | 1,612 | 24 Mar 2021 | |||
| Bronson Healthcare Group | Healthcare Provider | 1,597 | 13 Mar 2024 | |||
| H3- Hope, Healing, Health Inc. | Healthcare Provider | 1,586 | 29 Sep 2023 | |||
| Beaumont Health | Healthcare Provider | 1,568 | 27 Aug 2021 | |||
| Detroit Medical Center | Healthcare Provider | 1,529 | 13 Jul 2017 | |||
| Cristo Rey Community Center - Family Health Center | Healthcare Provider | 1,500 | 10 Sep 2019 | |||
| St. Mary Mercy Hospital | Healthcare Provider | 1,488 | 12 Dec 2014 | |||
| Badalamenti-Ferlito Orthodontics | Healthcare Provider | 1,427 | 14 May 2024 | |||
| Detroit Central City Community Mental Health | Healthcare Provider | 1,412 | 24 Aug 2023 | |||
| Henry Ford Health System | Healthcare Provider | 1,404 | 19 Jun 2019 | |||
| Javery Pain Institute | Healthcare Provider | 1,387 | 8 Dec 2021 | |||
| Burman & Zuckerbrod Ophthalmology Associates, P.C. | Healthcare Provider | 1,337 | 1 Jun 2022 | |||
| InterAct of Michigan, Inc. | Healthcare Provider | 1,290 | 7 Aug 2018 | |||
| County of Wayne Department of Personnel/Human Resources Benefits Administration Division | Health Plan | 1,229 | 6 Apr 2012 | |||
| Munson Healthcare | Healthcare Provider | 1,186 | 17 Sep 2025 | |||
| Beaumont Health | Healthcare Provider | 1,182 | 24 Jan 2020 | |||
| East Jordan Family Health Center | Healthcare Provider | 1,146 | 4 Jun 2021 | |||
| Benefit Outsourcing Solutions | Business Associate | 1,144 | 7 Jun 2018 | |||
| MITCON | Business Associate | 1,131 | 19 Dec 2022 | |||
| The Recovery Project, LLC | Healthcare Provider | 1,103 | 28 Jun 2021 | |||
| Spectrum Health Lakeland | Healthcare Provider | 1,100 | 6 May 2019 | |||
| Thresholds Inc. | Business Associate | 1,100 | 28 Oct 2011 | |||
| Detroit Medical Center - Harper University Hospital | Healthcare Provider | 1,087 | 13 Mar 2014 | |||
| Mercer | Business Associate | 1,073 | 30 Jul 2010 | |||
| BeneSys, Inc. | Business Associate | 1,070 | 10 Aug 2020 | |||
| University of Michigan/Michigan Medicine | Healthcare Provider | 1,062 | 16 Oct 2020 | |||
| Health Alliance Plan | Health Plan | 1,059 | 22 Dec 2025 | |||
| University of Michigan/Michigan Medicine | Healthcare Provider | 1,015 | 13 Aug 2025 | |||
| McLaren Greater Lansing Cardiovascular Group | Healthcare Provider | 1,000 | 21 Sep 2016 | |||
| Ascension Eastwood Clinics | Healthcare Provider | 999 | 23 Apr 2020 | |||
| Ascension Borgess Hospital | Healthcare Provider | 996 | 14 Nov 2019 | |||
| Family & Children's Services of Mid Michigan, Inc. | Healthcare Provider | 981 | 27 Apr 2016 | |||
| Judson CenterOpen | Healthcare Provider | 976 | 31 Oct 2025 | |||
| Mercy Health Saint Mary's | Healthcare Provider | 976 | 24 May 2019 | |||
| Detroit Chassis, LLC | Health Plan | 958 | 21 Nov 2023 | |||
| The Bengtson Center for Aesthetics and Plastic Surgery | Healthcare Provider | 935 | 5 Feb 2024 | |||
| Spectrum Health System | Healthcare Provider | 902 | 3 Aug 2017 | |||
| University of Michigan/Michigan Medicine | Healthcare Provider | 871 | 25 Jun 2018 | |||
| Vickers Engineering, Inc. | Health Plan | 857 | 20 Dec 2024 | |||
| Upper Peninsula Health Plan | Health Plan | 833 | 20 Apr 2023 | |||
| Upper Peninsula Health Plan | Health Plan | 812 | 25 Nov 2019 | |||
| Priority Health | Health Plan | 795 | 4 Jun 2022 | |||
| Spectrum Health System | Healthcare Provider | 794 | 15 Apr 2022 | |||
| ABA Pathways, LLC | Healthcare Provider | 775 | 18 Jun 2020 | |||
| Orchid MPS Holdings, LLC Welfare Benefit Plan | Health Plan | 771 | 26 May 2016 | |||
| Huron Inc. Health PlanOpen | Health Plan | 750 | 8 Nov 2024 | |||
| Parkhurst Chiropractic Life Center PLCOpen | Healthcare Provider | 728 | 14 Jul 2026 | |||
| InfuSystem Holdings, Inc. | Business Associate | 725 | 25 Feb 2021 | |||
| Green Castle Recovery Center DBA, Sanford Behavioral Health | Healthcare Provider | 703 | 22 Nov 2024 | |||
| Mobile Medical Response, Inc. | Healthcare Provider | 700 | 21 Jun 2024 | |||
| Youssef M Aoun DPM PLLC | Healthcare Provider | 700 | 24 Jan 2019 | |||
| Borgess Medical Center d/b/a Borgess Rheumatology | Healthcare Provider | 700 | 5 Feb 2016 | |||
| Paragon Health, P.C. | Healthcare Provider | 685 | 18 Nov 2020 | |||
| Memorial Healthcare | Healthcare Provider | 685 | 3 Apr 2017 | |||
| Lake Woods Nursing & Rehabilitation Center | Healthcare Provider | 656 | 18 Jan 2011 | |||
| Eclectic Chiropractic Rehab | Healthcare Provider | 650 | 5 Dec 2017 | |||
| Detroit Department of Health and Wellness Promotion | Healthcare Provider | 646 | 15 Dec 2009 | |||
| PsyGenics, Inc. | Business Associate | 614 | 18 May 2020 | |||
| Henry Ford Health System | Healthcare Provider | 596 | 26 Jun 2017 | |||
| Northwood, Inc. | Business Associate | 583 | 16 Jul 2019 | |||
| UAW Retiree Medical Benefits Trust | Health Plan | 576 | 14 Dec 2021 | |||
| Grace & Porta Benefits, inc. | Health Plan | 572 | 23 Jun 2020 | |||
| HealthLOGIX | Business Associate | 555 | 10 Apr 2012 | |||
| DataStat, Inc. | Business Associate | 552 | 12 Feb 2016 | |||
| University of Michigan/Michigan MedicineOpen | Healthcare Provider | 551 | 1 May 2026 | |||
| City of Detroit | Healthcare Provider | 544 | 5 Feb 2018 | |||
| Henry Ford Health System | Healthcare Provider | 520 | 3 Oct 2011 | |||
| Blue Cross Blue Shield of Michigan Blue Care Network | Business Associate | 502 | 19 May 2014 | |||
| Cherry Street Services, Inc.Open | Healthcare Provider | 501 | 18 Jun 2026 | |||
| Reproductive Medicine Associates of MichiganOpen | Healthcare Provider | 501 | 19 Dec 2025 |
Index / Other states
Every state on the register
98
32
164
92
776
139
144
31
33
463
226
22
29
358
200
98
80
124
66
37
170
241
189
55
164
36
60
55
38
174
57
511
207
19
276
80
120
339
32
41
86
15
196
633
68
15
157
185
47
126
19
Index / Companion schedules
13 HHS breach register
→Hub: every filing, by state, year and entity.
04 Biggest breaches
→Mega-breaches with primary-source cost figures.
Industry / Healthcare
→IBM 2026: $6.64M average, 13 years at #1.
Regulation / HIPAA penalties
→OCR enforcement tiers and the 60-day rule.
11 50-state laws
→Deadline, AG threshold and penalties per state.
Cost / Per record
→Where the per-record model is reliable.
Provenance
Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal (breaches affecting 500 or more individuals), retrieved 2026-08-28. Public domain. Individuals affected and dates as reported by the covered entity.
Portal: ocrportal.hhs.gov breach report. Statutory basis: HITECH Act section 13402(e)(4): the Secretary must post a list of breaches of unsecured protected health information affecting 500 or more individuals. Breaches affecting fewer than 500 individuals are reported to OCR annually and are not posted, so they are not on this register. Status wording follows the portal's two tabs ("Cases Currently Under Investigation" and "Archive") as of 28 August 2026; a filing moves to the archive when OCR closes the case. Modelled costs on this site are a method applied to the reported count, using IBM Cost of a Data Breach per-record figures, and are never a cost disclosed by the entity.
Corrections: if you represent a listed entity and the portal row has been amended, email [email protected] with the portal entry and we will re-pull the export.