Mendocino Community Health Clinic (MCHC) experienced a data breach that was publicly reported in January 2026. This incident stemmed from unauthorized access to a web portal belonging to its business associate, TriZetto Provider Solutions (TPS). The breach, which was active between November 2024 and October 2025, involved sensitive personal and protected health information.
The compromised data includes names, Social Security numbers, addresses, dates of birth, health insurance details, demographic data, and other protected health information belonging to over 3,500 individuals associated with MCHC. This incident is part of a broader breach affecting multiple healthcare providers through TPS, with overall impacts potentially reaching millions of individuals.
While MCHC has posted a breach notice and offered affected individuals complimentary credit monitoring, specific details regarding notification letters are not provided in the readily available information. Additional information may emerge as investigations continue, and notices to affected individuals may be delayed.