Form: Cost-of-Breach DisclosureSource: IBM Cost of a Data BreachFiled: 28 Apr 2026
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State File WA / HHS OCR Breach Register185 filings, 2010 to 2026

Geography

Washington: 185 healthcare breach filings.

Washington entities have reported 185 breaches of 500 or more individuals to HHS since 2010, the 15th most of the 52 states and territories on the register, covering 23,286,354 individuals (14th by people affected). 21 are still under investigation. Hacking/IT Incident is the breach type on 63% of them, and network server the most common location (48%).

Filings

185

15th of 52 states and territories

Individuals affected

23,286,354

Median filing 3,950

Largest filing

11,000,000

Premera Blue Cross, 2015

Hacking / IT share

63%

38 filings involve a business associate

Direct answer / Washington on the HHS portal

The largest Washington filing is Premera Blue Cross (11,000,000 individuals, submitted 17 March 2015). The busiest year was 2022 with 24 filings. Healthcare Providers account for 79% of the state's filings. 64 filings of 10,000 or more individuals have their own page; the remaining 121 are listed in the table at the foot of this page.

Section WA.1 / Largest filings

Ten largest Washington breaches

#Covered entityTypeIndividualsSubmitted
1Premera Blue CrossHealth Plan11,000,00017 Mar 2015
2Navia Benefit Solutions, Inc.OpenBusiness Associate2,151,33018 Mar 2026
3Fred Hutchinson Cancer CenterHealthcare Provider1,840,92722 Dec 2023
4UW MedicineHealthcare Provider973,02420 Feb 2019
5MCG Health, LLCBusiness Associate793,28310 Jun 2022
6Sea Mar Community Health CentersHealthcare Provider688,00030 Oct 2021
7Sound GenerationsBusiness Associate456,24329 Nov 2021
8Proliance SurgeonsHealthcare Provider437,39220 Nov 2023
9Rebound Orthopedics & NeurosurgeryHealthcare Provider426,53610 Apr 2024
10Columbia Surgical Specialist of SpokaneHealthcare Provider400,00018 Feb 2019

Section WA.2 / By year

Washington filings by submission year

Each year links to the national year page.

YearFilingsIndividuals affected
2010317,271
2011938,755
201258,495
2013681,046
2014621,505
2015511,006,133
201612528,837
2017937,176
2018744,333
2019151,522,106
20209569,484
2021171,796,569
2022241,365,438
2023122,493,052
202416855,660
202517633,687
2026132,266,807

Section WA.3 / Composition

Breach type, location and who filed

Multi-valued fields count once per value.

Type of breach

Hacking/IT Incident117 (63%)
Theft30 (16%)
Unauthorized Access/Disclosure29 (16%)
Loss4 (2%)
Other3 (2%)
Improper Disposal2 (1%)
Unknown1 (1%)

Location of breached information

Network Server89 (48%)
Email40 (22%)
Paper/Films19 (10%)
Laptop18 (10%)
Desktop Computer15 (8%)
Other8 (4%)
Electronic Medical Record7 (4%)
Other Portable Electronic Device7 (4%)

Covered entity type

Healthcare Provider146 (79%)
Health Plan19 (10%)
Business Associate19 (10%)
Healthcare Clearing House1 (1%)

Section WA.4 / Notification law

What Washington law required alongside HIPAA

State notification statute

Washington: RCW 19.255.010

Notice to individuals
No later than 30 days after discovery
Attorney general threshold
More than 500 Washington residents (Within the same 30-day window)
Private right of action
Yes: Civil lawsuits under the Consumer Protection Act; actual damages plus up to $1,000 punitive for willful violations
Penalty
Consumers may recover damages, costs, and attorney fees; AG may seek penalties and injunctive relief

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 WA.5 / Filing pages

64 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.

Covered entityTypeIndividualsSubmitted
Premera Blue CrossHealth Plan11,000,00017 Mar 2015
Navia Benefit Solutions, Inc.OpenBusiness Associate2,151,33018 Mar 2026
Fred Hutchinson Cancer CenterHealthcare Provider1,840,92722 Dec 2023
UW MedicineHealthcare Provider973,02420 Feb 2019
MCG Health, LLCBusiness Associate793,28310 Jun 2022
Sea Mar Community Health CentersHealthcare Provider688,00030 Oct 2021
Sound GenerationsBusiness Associate456,24329 Nov 2021
Proliance SurgeonsHealthcare Provider437,39220 Nov 2023
Rebound Orthopedics & NeurosurgeryHealthcare Provider426,53610 Apr 2024
Columbia Surgical Specialist of SpokaneHealthcare Provider400,00018 Feb 2019
Community Health Plan of WashingtonHealth Plan381,50421 Dec 2016
Northwest Radiologists, Inc./Mount Baker ImagingOpenHealthcare Provider362,71328 Oct 2025
Virginia Mason Medical CenterHealthcare Provider244,7618 Sep 2020
Yakima Valley Radiology, PCHealthcare Provider235,2491 Mar 2024
Woodcreek Provider Services LLCBusiness Associate233,1995 Mar 2021
Welfare & Pension Administration Service, Inc.Health Plan194,67417 Sep 2021
Chelan Douglas Health DistrictHealthcare Provider188,23615 Mar 2022
MultiCare Health SystemHealthcare Provider179,18922 Aug 2020
SEIU 775 Benefits GroupBusiness Associate140,00027 May 2021
Prestige Care, Inc.Healthcare Provider116,9566 Nov 2023
Overlake Medical Center & ClinicsHealthcare Provider109,2347 Feb 2020
Washington State Health Care Authority (HCA)Health Plan91,1879 Feb 2016
Fred Hutchinson Cancer CenterHealthcare Provider89,11125 May 2022
Grays Harbor Community HospitalHealthcare Provider88,39912 Aug 2019
Sight Partners Physicians, P.C.Healthcare Provider86,10114 Jun 2022
UW Medicine, Privacy Manager - BreachHealthcare Provider76,18327 Nov 2013
Kitsap Mental Health ServicesOpenHealthcare Provider70,75716 Dec 2024
Kaiser Foundation Health Plan of WashingtonHealthcare Provider69,5893 Jun 2022
Whitman County Public Hospital District No. 3Healthcare Provider63,45311 Apr 2025
Behavioral Health ResourcesOpenHealthcare Provider49,21317 Jan 2025
Confluence HealthHealthcare Provider33,82127 Jul 2018
Premera Blue CrossHealth Plan33,2128 Aug 2023
Mt. Spokane PediatricsOpenHealthcare Provider32,02130 Apr 2026
Zenith American SolutionsBusiness Associate30,56020 Jul 2022
Therapeutic Health ServicesHealthcare Provider27,17025 Apr 2024
Peoples Injury Network NorthwestHealthcare Provider27,00012 Sep 2019
Okanogan Behavioral HealthCareHealthcare Provider26,42923 Aug 2024
Klickitat Valley HealthHealthcare Provider26,33914 Mar 2025
Dr. Michael Bilikas and Associates d.b.a. 32 PearlsOpenHealthcare Provider23,51721 Jul 2025
Youth Eastside ServicesHealthcare Provider23,49220 Dec 2024
ProvidenceHealthcare Provider22,70116 Jan 2026
King County Public Hospital District No. 2 d/b/a EvergreenHealthHealthcare Provider22,57913 Jul 2021
Country Doctor Community Health ClinicHealthcare Provider22,12016 Sep 2022
Lake Washington VascularOpenHealthcare Provider21,53425 Feb 2025
Evergreen Treatment ServicesHealthcare Provider21,32510 Feb 2023
Bridle Trails Family DentistryOpenHealthcare Provider20,97614 May 2026
Samaritan Center of Puget SoundHealthcare Provider20,86615 Sep 2021
Northwest Eye Surgeons, P.C. and Sight Partners LLCHealthcare Provider20,83826 Oct 2020
King County Public Hospital District No. 2 d/b/a EvergreenHealthHealthcare Provider20,53322 Apr 2022
Fred Hutchinson Cancer CenterHealthcare Provider20,19226 Dec 2023
Northwest Denture Center, Inc.OpenHealthcare Provider19,41925 Jul 2025
UNITED BACKCARE PS dba Pacific Rehabilitation CentersOpenHealthcare Provider18,90011 Feb 2025
Franciscan Health, Highline Medical CenterHealthcare Provider18,3991 Sep 2016
UW MedicineHealthcare Provider18,3894 Jun 2021
Columbia River Mental Health ServicesHealthcare Provider17,8428 Aug 2022
TRUEbenefits LLCBusiness Associate17,30914 Aug 2017
Meridian Valley Laboratories, Inc.Healthcare Provider16,34129 Aug 2025
East Adams Rural HealthcareHealthcare Provider13,20621 Oct 2024
Hi-School PharmacyHealthcare Provider12,7795 Dec 2023
CHI Franciscan Health Hospice-TacomaHealthcare Provider12,41328 Nov 2016
Grays Harbor Pediatrics, PLLCHealthcare Provider12,00921 Jan 2011
Couve Healthcare Consulting, LLC DBA Evergreen Healthcare GroupOpenBusiness Associate11,79524 Feb 2026
Planned Parenthood of Greater Washington and North IdahoHealthcare Provider10,70026 Aug 2016
Bayside DentalOpenHealthcare Provider10,21617 Apr 2026

Section WA.6 / All other filings

121 filings below 10,000 individuals

Listed in full from the HHS export, largest first. These filings do not have their own page.

Covered entityTypeIndividualsSubmitted
Pacific Cataract and Laser Institute, Inc., P.C.Healthcare Provider9,96712 Jan 2024
SW Seattle Orthopaedic and Sports MedicineHealthcare Provider9,49315 Oct 2010
D. Andrew Loomis MD, Paula Schulze MD,Tammara Stefanelli MD, Christen Vu DO, Anja Crider MDHealthcare Provider9,00024 May 2017
Washington Department of Social and Health ServicesOpenHealthcare Provider8,60030 Jun 2026
Franciscan Medical GroupHealthcare Provider8,30028 Mar 2014
Green Diamond Resource CompanyHealth Plan8,17219 Apr 2024
Smile SolutionsHealthcare Provider8,0001 Jun 2022
MK Periodontics and ImplantsHealthcare Provider8,00029 Oct 2020
Trusteed Plan Services CorporationBusiness Associate7,97717 Sep 2025
CareNexa, LLC, doing business as Molecular Testing LabsOpenHealthcare Provider7,71115 May 2025
Soundpath Health, IncHealth Plan7,58123 Dec 2011
Area Agency on Aging and Disabilities of Southwest WashingtonHealth Plan7,00022 Apr 2019
Community Psychiatric ClinicHealthcare Provider6,64115 Aug 2019
Delta Dental of WashingtonHealth Plan6,36130 Sep 2022
Seattle Children's HospitalHealthcare Provider6,32021 Sep 2022
Nintendo of America Inc.Health Plan6,24826 Feb 2016
Haley Chiropractic ClinicHealthcare Provider6,0008 Jul 2014
Community Psychiatric ClinicHealthcare Provider5,86615 Aug 2019
MedicareCompareUSAOpenBusiness Associate5,78221 Mar 2025
Healthcare Resource Group, Inc.Business Associate5,3877 Apr 2020
Ankle and Foot Physicians and Surgeons PLLCHealthcare Provider5,24428 Jun 2021
Laboratory Corporation of America/Dynacare Northwest, Inc.Healthcare Provider5,08018 Mar 2010
PROVAILHealthcare Provider4,9088 Aug 2025
Paul C. Brown, MD, PSHealthcare Provider4,69315 Dec 2011
Osborn Cancer CareHealthcare Provider4,6148 Jul 2021
Family Dynamics Counseling Services, Inc.Healthcare Provider4,37311 Jul 2024
Health First Urgent Care PLLCHealthcare Provider4,16922 Apr 2024
Kittitas Valley HealthcareHealthcare Provider3,98725 Feb 2022
Washington State Department of Social and Health ServicesHealth Plan3,9509 Aug 2011
Northwest Medical Specialties PLLCHealthcare Provider3,86428 Aug 2025
UW MedicineHealthcare Provider3,80421 Sep 2022
Quality Behavioral HealthHealthcare Provider3,49826 Dec 2022
Totem Lake Family DentistryOpenHealthcare Provider3,46430 Apr 2026
Spokane VA Medical CenterHealthcare Provider3,27520 Sep 2017
WA State Department of Social & Health ServicesHealth Plan3,10411 Feb 2014
Flex Physical TherapyHealthcare Provider3,10027 Jan 2012
Cancer Care Northwest P.S.Healthcare Provider3,1009 Feb 2011
Community Psychiatric ClinicHealthcare Provider3,03015 Aug 2019
Rose H Bailey DDSHealthcare Provider3,00026 Oct 2021
Morton Medical Center, PLLCHealthcare Provider3,00024 Mar 2016
Kaye-Smith Enterprises, Inc.Business Associate2,85726 Sep 2022
CHI Franciscan Health, St. Clare Hospital and St. Joseph Medical CenterHealthcare Provider2,81816 Sep 2016
Virginia Mason Medical CenterHealthcare Provider2,73314 Mar 2022
NavosHealth Plan2,7008 Jun 2011
Ward A. Morris, DDSHealthcare Provider2,69811 Aug 2010
Yakima Neighborhood Health ServicesHealthcare Provider2,68914 Nov 2022
Vimly Benefit Solutions, Inc.Business Associate2,67513 Dec 2019
Link Audiology LLCHealthcare Provider2,60828 Apr 2023
Jefferson HealthcareHealthcare Provider2,54311 Jan 2021
Coulee Medical CenterHealthcare Provider2,5003 Jan 2014
Integrative DentistryHealthcare Provider2,45414 Feb 2023
Southwest Washington Regional Surgery Center, LLCHealthcare Provider2,3936 Nov 2018
Bonney Lake Medical Center and Mythili R. Ramachandran, MDHealthcare Provider2,36721 Sep 2011
West Sound Treatment CenterHealthcare Provider2,30011 Oct 2018
West Sound Treatment CenterHealthcare Provider2,30011 Oct 2018
Limeade, Inc.Business Associate2,28715 Oct 2021
The CSC Generation Holdings, Inc. Health and Welfare PlanHealth Plan2,21924 May 2023
Spokane Digestive Disease Center, P.S.OpenHealthcare Provider2,15720 Apr 2026
Bates Technical CollegeHealthcare Provider2,11213 Sep 2019
Alta Forest Products Health and Welfare PlanHealth Plan2,10031 Oct 2022
Roy E. Gondo, M.D.Healthcare Provider2,10013 Apr 2012
Northwest Surgical Specialists, P.C.Healthcare Provider2,0505 Oct 2018
David E. Hansen DDS PSHealthcare Provider2,00029 Jan 2015
CellNetix Pathology & LaboratoriesHealthcare Provider1,96928 Dec 2022
PeaceHealthHealthcare Provider1,96919 Sep 2017
Mann-Grandstaff VA Medical CenterHealthcare Provider1,91519 Oct 2017
International Rehabilitative Sciences Inc., dba RS MedicalHealthcare Provider1,9111 Apr 2019
Zenith American SolutionsBusiness Associate1,90724 Sep 2021
Bloodworks NorthwestHealthcare Provider1,8938 May 2019
Physicians Insurance A Mutual CompanyBusiness Associate1,85219 Jul 2023
Dental Health Services, IncHealth Plan1,77816 Apr 2024
Webber Chiropractic Sports Clinic, Inc.Healthcare Provider1,69523 Jan 2024
Stephen Haggard, DPM PodiatryHealthcare Provider1,5974 May 2012
Virginia Mason Medical CenterHealthcare Provider1,52331 May 2022
Walla Walla VA Medical CenterHealthcare Provider1,51918 Dec 2013
Cancer Care NorthwestHealthcare Provider1,42617 Aug 2015
PeaceHealthHealthcare Provider1,40730 Nov 2015
Community Health Plan of WashingtonHealth Plan1,3753 Jan 2017
HealthPointHealthcare Provider1,30013 Nov 2015
Wonderland Child & Family ServicesHealthcare Provider1,28313 Mar 2026
Franciscan Medical GroupHealthcare Clearing House1,25013 Jan 2011
MultiCare Health SystemHealthcare Provider1,24926 Jan 2017
JASON R EGBERT OD PCHealthcare Provider1,2252 Jun 2026
Moses Lake Community Health CenterHealthcare Provider1,1902 Jun 2021
Providence Pediatrics ManitoHealthcare Provider1,1661 Aug 2024
Pediatrix Cardiology of Washington, P.C. d/b/a NorthWest Congenital Heart CareHealthcare Provider1,1664 Jun 2021
Spinal and Sports Care Clinic PSHealthcare Provider1,1368 Aug 2023
Gene S. J. Liaw, MD. PSHealthcare Provider1,10517 Jun 2011
Tri-Cities ChaplaincyHealthcare Provider1,08618 Jan 2019
TalystBusiness Associate1,07924 Mar 2014
Group Health CooperativeHealthcare Provider1,0153 Oct 2013
Northwest Asthma and Allergy CenterHealthcare Provider1,00012 Dec 2024
Ronald Schubert MD PLLCHealthcare Provider95026 Nov 2013
Seattle Cancer Care AllianceHealthcare Provider94416 Oct 2019
Charlotte Clark-Neitzel, MDHealthcare Provider9427 Sep 2012
Robert S Miller, LICSW, ACSW, PLLCHealthcare Provider90213 Dec 2022
Swedish Edmonds HospitalHealthcare Provider88619 May 2025
Health and Wellness Clinic, PLLCHealthcare Provider88313 Oct 2020
Western Washington Medical Group Inc.Healthcare Provider84212 Jan 2018
The Seattle Indian Health BoardHealthcare Provider7936 Oct 2016
UW MedicineHealthcare Provider76315 Jun 2022
Lutheran Community Services NorthwestHealthcare Provider75629 May 2012
Seattle - King County Department of Public HealthHealthcare Provider7507 May 2013
Limeade, Inc.Business Associate66820 Jan 2021
Group HealthHealth Plan66823 Sep 2016
Washington State Department of Social and Health ServicesHealth Plan64820 Aug 2020
Incyte Pathology, P.S.Healthcare Provider6294 Nov 2025
Sunil Kakar, Psy.D.Business Associate62929 Mar 2013
Overlake arthritis and Osteoporosis CenterHealthcare Provider6276 Jul 2018
Vancouver Radiologists, PCHealthcare Provider60326 Feb 2016
Kennewick General Hospital dba Trios HealthHealthcare Provider56918 May 2017
Overlake Medical Center & ClinicsHealthcare Provider55712 Aug 2022
James F. Collette DDS & David N. Hamilton DDS PLLCHealthcare Provider54414 Feb 2020
Renovo Chiropractic & WellnessOpenHealthcare Provider53816 Mar 2026
ChirobodyHealthcare Provider52519 Sep 2019
Rite Aid Store 5256Healthcare Provider52230 Jul 2014
Washington State Department of Social and Health ServicesHealthcare Provider51516 Nov 2017
Camas Center Clinic, Kalispel Tribe of IndiansHealthcare Provider50421 Nov 2016
Open Door Health Center of IllinoisOpenHealthcare Provider50118 Jul 2026
Washington GastroenterologyOpenHealthcare Provider5019 May 2025
Laboratory Services CooperativeOpenHealthcare Provider50120 Nov 2024

Index / Other states

Every state on the register

Index / Companion schedules

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.