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California Cancer Associates for Research and Excellence Data Breach Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the California Cancer Associates for Research and Excellence - Fresno data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About California Cancer Associates for Research and Excellence (cCARE)
California Cancer Associates for Research and Excellence (cCARE) is the largest private, full-service oncology and hematology practice in California. cCARE offers services including oncology and hematology consultations, chemotherapy, radiation oncology, infusion and imaging services, as well as access to clinical trials for eligible patients.
With a multidisciplinary team of board-certified oncologists and hematologists at nine locations, the center also provides on-site pharmacy services and care management programs focused on prevention and wellness.
What Happened?
California Cancer Associates for Research and Excellence experienced a major data breach impacting multiple locations and thousands of patients. The cybersecurity incident occurred between Dec. 13, 2024, and Dec. 16, 2024 and compromised both personally identifiable information (PII) and protected health information (PHI).
Integrated Oncology Network, a company that provides administrative services to cCARE, launched an investigation and on May 9, 2025, it was determined an unauthorized actor accessed ION email and SharePoint accounts in order to perpetuate an email phishing scheme. The compromised files included cCARE patient data.
Affected individuals include 7,670 cCARE Fresno, 17,250 High Desert and 638 San Diego patients. The total number of people impacted by the data breach has not been released.
Information Exposed:
- Name
- Address
- Date of birth
- Social Security number
- Financial account information
- Diagnosis details
- Lab results
- Medication information
- Treatment information
- Health insurance and claims information
- Provider name
- Dates of treatment
The data breach was disclosed to the U.S. Department of Health and Human Services and reported to the California Attorney General's office on June 27, 2025. cCARE posted the ION Notice of Email Phishing Incident on its own website.
Your Rights and Next Steps
If you received a data breach notice from cCARE or Integrated Oncology Network, it is important to understand your rights. You may be entitled to seek compensation for any harm or inconvenience caused by this cybersecurity incident.
- Credit monitoring services: Sign up for free Epiq Privacy Solutions ID credit monitoring services offered.
- Monitor your accounts carefully: Check your financial statements regularly for suspicious activity or unauthorized transactions. If you notice anything unusual, contact your financial institution immediately.
- Fraud alert and credit reports: A fraud alert informs creditors to take extra steps to verify your identity before opening new accounts in your name. Consumers are also entitled to one free credit report annually from each credit bureau. You can request a fraud alert or a credit report by contacting any one of the three major credit bureaus.
- Seek legal help: Lawyers are ready to help you understand your rights and pursue compensation.
Lawyers are ready to help you understand your rights and guide you through the process of joining a class action lawsuit.
You May Be Entitled to Compensation
If your personal and protected health information was exposed in cCare data breach, you may be eligible for compensation, which can include reimbursement for out-of-pocket expenses, time spent addressing the breach, or payment for emotional distress. Lawyers are investigating the situation and can help you determine your options.
To find out if you qualify and to join a potential lawsuit, complete the form below.
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