Premise Health Holding Corp

Premise Health Holding Corp notified Washington AG on Nov 6, 2026 of a data breach affecting 49,444 Washington residents, which occurred on Mar 26, 2026. Data exposed: Social Security number, Medical / health information, Health insurance, Date of birth, Name.

All 4 filings by Premise Health Holding Corp, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: Premise Health Holding Corp
Source: Washington AG · source record
Date reported: Nov 6, 2026
Date(s) of breach: 03/26/2026
Residents affected: 49,444 (Washington residents)
Data exposed: Social Security number Medical / health information Health insurance Date of birth Name
Notice letter: Sample notice (PDF)
Days to notice: 225 days from the end of the breach window (Mar 26, 2026, no discovery date in the letter) to the Washington record (Nov 6, 2026). Statute: 30 days from discovery of the breach (RCW 19.255.010).
First seen by BreachTally: 2026-11-10 19:01 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

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Information compromised, as listed

Name; Social Security Number; Full Date of Birth; Health Insurance Policy or ID Number; Medical Information; Protected Health Information owned or licensed by a HIPAA covered entity

Other filings by Premise Health Holding Corp

Organization	Source	State	Reported	Residents affected	Data exposed
Premise Health Holding Corp	Texas AG	TX	Nov 10, 2026	261,654	Social Security numberMedical / health informationHealth insuranceDate of birth+2
Premise Health Holding Corp.	California AG	CA	Nov 6, 2026	Not published	Social Security numberMedical / health informationHealth insuranceDate of birth+2
Premise Health Holding Corp	Vermont AG	VT	Nov 6, 2026	1,948	Social Security numberMedical / health information

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.