Clustered 6 filings across 5 jurisdictions · filing window Jul 3, 2024 → Aug 4, 2025. View entity profile → Other incidents for this victim →
incident inc_19657f8388ea4bd3 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Materiality delta · SEC filing delay — no SEC 8-K in this cluster.
CO MT OR TX
Leak Site · HHS OCR · State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Nov 20, 2017 → Dec 14, 2023
When the intrusion reportedly occurred, per the linked filings
Jun 17, 2024
Reported by OREGON AG filing
DaVita Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2024-07-03. The breach occurred during 11/20/2017 - 12/14/2023. The breach was discovered on 6/17/2024. Notice was sent on 7/3/2024.
Apr 12, 2025
Reported by OREGON AG, TEXAS AG filings
DaVita Inc. provides kidney dialysis services for patients suffering from chronic kidney failure in the United States. The company operates kidney dialysis centers and provides related lab services in outpatient dialysis centers. It also offers outpatient, hospital inpatient, and home-based hemodialysis services; operates clinical laboratories that provide routine laboratory tests for dialysis and other physician-prescribed laboratory tests for ESRD patients; and management and administrative services to outpatient dialysis centers. In addition, the company offers integrated care and disease management services to patients in risk-based and other integrated care arrangements; clinical research programs; physician services; and comprehensive kidney care services. Further, it engages in the provision of acute inpatient dialysis services and related laboratory services; and transplant software business.
DaVita Inc reported a data breach to the Montana Attorney General. The breach was reported on 2025-08-01. The breach occurred from 03/24/2025 to 04/12/2025. 761 Montana residents were affected.
Affected (this filing):
DaVita Inc. reported to HHS on 2025-08-01 a Hacking/IT Incident affecting 2,689,826 individuals. Breached information located on Network Server.
Affected (this filing): 2,689,826
DaVita Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2025-08-01. The breach occurred during 3/24/2025 - 4/12/2025. The breach was discovered on 4/12/2025. 915,952 individuals were affected. Notice was sent on 8/1/2025.
Affected (this filing): 915,952
DaVita Inc. based in Denver, Colorado, a healthcare – medical provider entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-04-12 and reported on 2025-08-04. 81,740 Texas residents were affected. 915,952 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Driver’s License number;Government-issued ID number (e.g. passport, state ID card);Financial Information (e.g. account number, credit or debit card number);Medical Information;Health Insurance Information;Date of Birth. Consumers were notified via Notice by publication in print media;Posted at company website or special website;U.S. Mail.
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
Affected (this filing): 81,740