Geography
Oklahoma: 80 healthcare breach filings.
Oklahoma entities have reported 80 breaches of 500 or more individuals to HHS since 2010, the 31st most of the 52 states and territories on the register, covering 6,100,676 individuals (28th by people affected). 8 are still under investigation. Hacking/IT Incident is the breach type on 73% of them, and network server the most common location (51%).
Filings
80
31st of 52 states and territories
Individuals affected
6,100,676
Median filing 3,849
Largest filing
2,385,646
INTEGRIS Health, 2024
Hacking / IT share
73%
26 filings involve a business associate
Direct answer / Oklahoma on the HHS portal
The largest Oklahoma filing is INTEGRIS Health (2,385,646 individuals, submitted 26 January 2024). The busiest year was 2021 with 10 filings. Healthcare Providers account for 80% of the state's filings. 24 filings of 10,000 or more individuals have their own page; the remaining 56 are listed in the table at the foot of this page.
Section OK.1 / Largest filings
Ten largest Oklahoma breaches
| # | Covered entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|---|
| 1 | INTEGRIS Health | Healthcare Provider | 2,385,646 | 26 Jan 2024 | |||
| 2 | INTEGRIS Health, Inc. | Healthcare Provider | 1,245,218 | 16 Dec 2019 | |||
| 3 | Emergency Medical Services Authority | Healthcare Provider | 611,743 | 22 Mar 2024 | |||
| 4 | Oklahoma State University | Healthcare Provider | 279,865 | 5 Jan 2018 | |||
| 5 | Avem Health Partners | Business Associate | 271,303 | 13 Dec 2022 | |||
| 6 | Muskogee City County Enhanced 911 Trust AuthorityOpen | Business Associate | 180,000 | 20 Sep 2024 | |||
| 7 | Great Plains Regional Medical CenterOpen | Healthcare Provider | 133,149 | 7 Nov 2024 | |||
| 8 | Oklaholma State Dept. of Health | Healthcare Provider | 132,940 | 11 Apr 2011 | |||
| 9 | North Oklahoma County Mental Health Center d/b/a NorthCare | Healthcare Provider | 128,556 | 21 Jul 2021 | |||
| 10 | CareATC, Inc. | Healthcare Provider | 98,774 | 27 Aug 2021 |
Section OK.2 / By year
Oklahoma filings by submission year
Each year links to the national year page.
| Year | Filings | Individuals affected | Hacking / IT share | Filings with a page |
|---|---|---|---|---|
| 2010 | 2 | 21,150 | 50% | 1 |
| 2011 | 3 | 217,540 | 0% | 2 |
| 2012 | 1 | 844 | 0% | 0 |
| 2014 | 2 | 9,814 | 0% | 0 |
| 2015 | 5 | 29,771 | 60% | 0 |
| 2016 | 3 | 7,801 | 67% | 0 |
| 2017 | 5 | 65,670 | 20% | 2 |
| 2018 | 2 | 280,678 | 100% | 1 |
| 2019 | 4 | 1,247,489 | 50% | 1 |
| 2020 | 2 | 2,188 | 50% | 0 |
| 2021 | 10 | 256,810 | 80% | 2 |
| 2022 | 9 | 476,221 | 89% | 7 |
| 2023 | 6 | 72,367 | 83% | 2 |
| 2024 | 9 | 3,355,599 | 100% | 5 |
| 2025 | 8 | 38,342 | 100% | 1 |
| 2026 | 9 | 18,392 | 89% | 0 |
Section OK.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 OK.4 / Notification law
What Oklahoma law required alongside HIPAA
State notification statute
Oklahoma: Okla. Stat. tit. 24, 161 et seq.
amended by SB 626 (effective 1 January 2026)
- Notice to individuals
- Without unreasonable delay
- Attorney general threshold
- 500 or more Oklahoma residents (No later than 60 days after providing notice to residents)
- Private right of action
- No: No PROA; enforcement is exclusive to the Oklahoma Attorney General
- Penalty
- Up to $150,000 per breach; reduced or waived where reasonable safeguards are demonstrated
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 OK.5 / Filing pages
24 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 OK.6 / All other filings
56 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 |
|---|---|---|---|---|---|---|
| University of Oklahoma Department of Urology | Healthcare Provider | 9,300 | 10 Oct 2015 | |||
| People Incorporated of Sequoyah County | Healthcare Provider | 8,725 | 5 May 2023 | |||
| Oklahoma Healthcare Authority (OHCA) | Health Plan | 8,629 | 3 Feb 2022 | |||
| Cancer Centers of Southwest Oklahoma, LLC | Healthcare Provider | 8,000 | 4 Jun 2021 | |||
| University of Oklahoma, Department of Obstetrics and Gynecology | Healthcare Provider | 7,693 | 3 Jul 2015 | |||
| LifeSpring Home Care | Healthcare Provider | 7,509 | 6 Apr 2026 | |||
| McElroy & Associates, Inc. | Business Associate | 6,633 | 17 Oct 2025 | |||
| Implant and Prosthodontic Associates | Healthcare Provider | 6,134 | 6 May 2021 | |||
| Oklahoma City Indian Clinic | Healthcare Provider | 6,000 | 22 Aug 2014 | |||
| Harper County Community Hospital | Healthcare Provider | 5,725 | 24 May 2021 | |||
| Fairfax Medical Facilities, Inc. | Healthcare Provider | 4,970 | 13 Aug 2021 | |||
| Millennium Home Health CareOpen | Healthcare Provider | 4,743 | 19 Mar 2025 | |||
| Indian Territory Home Health and Hospice | Healthcare Provider | 4,500 | 22 Oct 2015 | |||
| Aspire Home Care and Hospice | Healthcare Provider | 4,278 | 9 Oct 2015 | |||
| EyeCare of Bartlesville | Healthcare Provider | 4,000 | 13 Mar 2015 | |||
| A Path of Care Home Health and Hospice | Healthcare Provider | 3,849 | 13 Mar 2026 | |||
| NFP Maschino, Hudelson & Associates | Business Associate | 3,814 | 30 May 2014 | |||
| LKM ENTERPRISES, INC. | Healthcare Provider | 3,400 | 1 Jun 2017 | |||
| Counseling and Recovery Services of Oklahoma | Healthcare Provider | 3,365 | 19 Oct 2023 | |||
| PET Imaging of Tulsa | Healthcare Provider | 3,159 | 27 Jun 2025 | |||
| OU Medicine, Inc. d/b/a OU Health | Healthcare Provider | 3,013 | 17 Mar 2023 | |||
| Warren Clinic | Healthcare Provider | 2,938 | 7 Oct 2016 | |||
| American Fidelity Assurance Company | Health Plan | 2,664 | 13 Apr 2016 | |||
| OU Medicine, Inc. | Healthcare Provider | 2,537 | 17 Jan 2025 | |||
| Spring Management OK, LLCOpen | Business Associate | 2,494 | 14 Feb 2025 | |||
| Golden Age Home Health Inc. | Healthcare Provider | 2,280 | 18 Dec 2024 | |||
| Brain & Eye Connection Vision Clinic, PCOpen | Healthcare Provider | 2,207 | 1 Nov 2024 | |||
| Comanche County Hospital Authority | Healthcare Provider | 2,199 | 25 Apr 2016 | |||
| Oklahoma City VA Medical Center | Healthcare Provider | 1,950 | 29 Nov 2010 | |||
| Arbuckle Memorial Hospital | Healthcare Provider | 1,907 | 5 Jul 2022 | |||
| W. Emery Reynolds, M.D | Business Associate | 1,844 | 21 Dec 2021 | |||
| University of Oklahoma, OU Physicians | Healthcare Provider | 1,637 | 4 Apr 2017 | |||
| Chickasaw Nation Department of HealthOpen | Healthcare Provider | 1,607 | 11 Jun 2026 | |||
| Five Star Home Health, Inc. | Healthcare Provider | 1,575 | 10 Feb 2026 | |||
| Ideal Home Care | Healthcare Provider | 1,331 | 13 Mar 2026 | |||
| Oklahoma Heart Hospital, LLC | Healthcare Provider | 1,221 | 7 Mar 2019 | |||
| Prague Regional Memorial Hospital | Healthcare Provider | 1,129 | 22 Feb 2024 | |||
| Absentee Shawnee Tribal Health Authority, Inc. | Healthcare Provider | 1,112 | 31 Dec 2025 | |||
| Comanche County Hospital Authority | Health Plan | 1,112 | 3 Aug 2020 | |||
| Carnegie Tri-County Municipal Hospital | Healthcare Provider | 1,076 | 4 Sep 2020 | |||
| Oklahoma Heart Hospital, LLC | Healthcare Provider | 1,038 | 12 Jul 2021 | |||
| Fast Medical Center | Business Associate | 901 | 21 Dec 2021 | |||
| Mertz Manufacturing Inc Health Insurance Plan | Health Plan | 868 | 3 Dec 2021 | |||
| Muskogee Regional Medical Center | Health Plan | 844 | 20 Jan 2012 | |||
| Oklahoma Department of Human Services | Health Plan | 813 | 8 Oct 2018 | |||
| Duncan Regional Hospital, Inc. | Healthcare Provider | 724 | 10 Apr 2026 | |||
| Prairie View Healthcare, Inc. | Healthcare Provider | 700 | 24 Feb 2026 | |||
| Mercy Hospital Logan County | Healthcare Provider | 629 | 30 Aug 2017 | |||
| GlobalHealth Holdings, LLC | Health Plan | 622 | 22 Jun 2023 | |||
| JEFFREY J. SMITH, MD | Healthcare Provider | 600 | 16 Mar 2011 | |||
| SSM Health | Healthcare Provider | 597 | 11 Mar 2026 | |||
| Choctaw Nation Health Services Authority | Healthcare Provider | 550 | 23 Aug 2019 | |||
| CardioVascular Health ClinicOpen | Healthcare Provider | 501 | 3 May 2025 | |||
| Lumio DentalOpen | Business Associate | 500 | 29 Mar 2026 | |||
| Lindsay Municipal Hospital | Healthcare Provider | 500 | 13 Mar 2024 | |||
| Choctaw Nation Health Service Authority | Healthcare Provider | 500 | 27 Sep 2019 |
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
238
189
55
164
36
60
55
38
174
57
511
207
19
276
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.