Important Notice: One Community Health is notifying patients about a data security incident involving TriZetto Provider Solutions, a subcontractor of our partner vendor OCHIN. This incident did not involve One Community Health’s systems. We take the privacy and security of your information seriously.
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What Happened
On October 2, 2025, TriZetto Provider Solutions (a subcontractor used by our partner vendor OCHIN for insurance clearinghouse services) discovered suspicious activity in their web portal. An investigation determined that between November 2024 and October 2, 2025, an unauthorized individual accessed certain historical eligibility transaction reports in TriZetto’s system.
What Information Was Involved
The information varied by individual but may have included: name, address, date of birth, Social Security number, health insurance member number, health insurance company name, primary insured/dependent information, and other demographic and health insurance information.
The incident did NOT involve: Payment card information, bank account information, or other financial account information.
What We Are Doing
TriZetto’s Response:
TriZetto engaged cybersecurity experts (Mandiant) and law enforcement, secured their systems, and confirmed no unauthorized activity since October 2, 2025.
One Community Health’s Response: Although this incident did not involve OCH’s systems, we immediately conducted comprehensive security checks of our infrastructure—no breaches were found. We notified all potentially affected patients and reported the incident to state and federal agencies (California Attorney General and HHS OCR) within required timeframes. We are coordinating with OCHIN and TriZetto to ensure affected individuals receive information about complimentary credit monitoring services.
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Free Credit Monitoring Services: TriZetto is offering complimentary credit monitoring, fraud consultation, and identity theft restoration services through Kroll at no cost. Affected individuals will receive separate enrollment instructions from TriZetto.
What You Can Do
We recommend that you remain vigilant by reviewing account statements, monitoring free credit reports for suspicious activity, and reviewing Explanation of Benefits statements for services you didn’t receive.
Additional Resources
Free Annual Credit Reports: www.annualcreditreport.com | 1-877-322-8228
Credit Reporting Agencies:
Equifax: 1-800-685-1111 | Experian: 1-888-397-3742 | TransUnion: 1-800-916-8800
Fraud Alerts & Security Freezes: Contact credit reporting agencies to place fraud alerts or security freezes on your credit file.
Your Right to File a Complaint: You may file a complaint with the U.S. Department of Health and Human Services Office for Civil Rights at www.hhs.gov/ocr/privacy/hipaa/complaints or 1-877-696-6775. Filing a complaint will not affect your care at One Community Health.
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Contact Information
If you have questions about this incident, please contact:
Ama-Linda Affi, RHIT, CHPS™
Privacy Manager
Phone: (916) 269-8935
Email: aaffi@onecommunityhealth.com
Rob P. Colon-Torres
Chief Compliance Officer
Phone: (916) 443-3299
Email: rtorres@onecommunityhealth.com
One Community Health is committed to protecting the privacy and security of your health information.
