HHS OCR report · 2017
2020 On-Site Optometry data breach
OCR report facts
- Covered entity
- 2020 On-Site Optometry
- Entity type
- Business Associate
- State
- Massachusetts
- Individuals affected
- 15,400
- Submission date
- Feb 13, 2017
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), 2020 Onsite Optometry, experienced a ransomware attack that affected the electronic protected health information (ePHI) (specifically, demographic and health appointment information) of 15,400 individuals. Following the incident, the CE blocked the attacker’s access to its information system, changed the system password, upgraded pertinent software, and hired third-parties to assist in responding to the incident and guarding against future incidents. The CE notified a...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the 2020 On-Site Optometry data breach?
The report to HHS OCR lists 15,400 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 13, 2017.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from 2020 On-Site Optometry legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or 2020 On-Site Optometry.