Great Expressions Dental Centers
Disclosed May 12, 20233 years ago1,925,397 affectedConfirmed
The covered entity (CE), Great Expressions Dental Centers, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 1,925,397 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, health insurance information, and financial and treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice of the breach on its website. In response to the breach, the CE offered free credit monitoring services and implemented additional administrative, technical, and security safeguards. Staff were also retrained on the requirements to protect and secure PHI.
What is known
| People affected | 1,925,397 (as reported to HHS) |
|---|---|
| Disclosed | May 12, 2023 |
| Discovered | Feb 22, 2023 |
| Happened | Feb 17, 2023 |
| Attack | Ransomware |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Great Expressions Dental Centersoag.ca.gov · Official notice | Official notice |
| Washington Attorney General breach notice: Great Expressions Dental Centersatg.wa.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Great Expressions Dental Centers (Healthcare Provider, MI)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | May 12, 2023 | 1,925,397 |
| California AGresidents of CA | Oct 2, 2023 | |
| Washington AGresidents of WA | Oct 5, 2023 | 587 |
History of this record
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 1925397 · backfill source
- 2026-09-25 · disclosed: 2023-10-02 to 2023-05-12 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Great Expressions Dental Centers, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 1,925,397 individuals. The PHI involved included names, addresses, dates o · backfill source
- 2026-09-25 · attack: unknown to ransomware · backfill source
- 2026-09-25 · discovered: empty to 2023-02-22 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.