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Regulator-posted notice

Breach notice filed by University Of Missouri Health (October 2018)

Organization named: University Of Missouri Health Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Unauthorized Access/Disclosure

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS Office for Civil Rights breach portal with a submission date of Oct. 5, 2018.

Organization as reported
University Of Missouri Health, MO
Entity type as reported
Healthcare Provider
Category as reported
Unauthorized Access/Disclosure
Location of information as reported
Paper/Films
Submission date
Oct. 5, 2018
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 13675, row:4814)
Archived copy
Held in the private archive (provenance)

Due to an incorrect mail merge, on June 8, 2018, the covered entity (CE) sent letters to 706 patients in the Ear, Nose, and Throat Clinic to the wrong addresses. The breached protected health information (PHI) included names, addresses, zip codes, and treatment information. The CE provided breach notification to HHS, affected individuals, and the media. Following the breach, the CE sanctioned and retrained the workforce members whose actions led to the breach. It also provided education on verifying the information contained in a spreadsheet and ensuring that any changes made to data received does not impact the integrity of the original data. The CE also advised responsible staff that the printing services department should be provided a pre-sorted spreadsheet for future mailings. OCR obtained documented assurances that the CE implemented the corrective actions noted above.

The source's own words, from the revision above.

Figures, per source

  • 706 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date Oct. 5, 2018, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date (HHS Office for Civil Rights breach portal)
  • Observed by BreachRecords (revision 13675)
  • Approved by a reviewer

Organizations linked by a reviewer

  • University Of Missouri Health Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, retrieved from HHS Office for Civil Rights breach portal, 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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