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Latest / Washington / September 2026

MedImpact Healthcare Systems, Inc.

MedImpact Healthcare Systems, Inc. notified Washington AG on Sep 26, 2026 of a data breach affecting 3,926 Washington residents, which occurred on Oct 18, 2025. Data exposed: Social Security number, Medical / health information, Health insurance, Date of birth, Name.

All 5 filings by MedImpact Healthcare Systems, Inc., state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
MedImpact Healthcare Systems, Inc.
Source
Washington AG · source record
Date reported
Sep 26, 2026
Date(s) of breach
10/18/2025
Residents affected
3,926 (Washington residents)
Data exposed
Social Security number Medical / health information Health insurance Date of birth Name
Notice letter
Sample notice (PDF)
Discovered
Oct 18, 2025, as stated in the letter
"On October 18, 2025, MedImpact identified unauthorized activity within certain systems in its environment."
Days to notice
343 days from discovery (Oct 18, 2025) to the Washington record (Sep 26, 2026). Statute: 30 days from discovery of the breach (RCW 19.255.010). Over the statutory period
Offered in the letter
12 months of credit or identity monitoring through Experian
Third party
The letter attributes the incident to a vendor or service provider
First seen by BreachTally
2026-11-10 18:31 UTC

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

First seen by BreachTally at 18:31 UTC on Nov 10, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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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 MedImpact Healthcare Systems, Inc.

OrganizationSourceStateReportedResidents affectedData exposed
MedImpact Healthcare Systems, Inc. Texas AG TX Sep 29, 2026 8,199 Social Security numberMedical / health informationHealth insuranceDate of birth+2
MedImpact Healthcare Systems, Inc. Oregon DOJ OR Sep 26, 2026 327,082 Not stated
MedImpact Healthcare Systems, Inc. Massachusetts OCABR MA Sep 26, 2026 211 Social Security numberMedical / health information
MedImpact Healthcare Systems, Inc. California AG CA Sep 25, 2026 Not published Name

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