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Orange County Radiation Oncology Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Orange County Radiation Oncology Medical Group 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 Orange County Radiation Oncology Medical Group
Orange County Radiation Oncology Medical Group is a medical practice based in Santa Ana, California. The group specializes in providing advanced cancer treatment using radiation therapy. Their team is made up of board-certified radiation oncologists, physicists, dosimetrists and radiation therapists who work together to deliver comprehensive care.
What happened?
On June 13, 2025, Orange County Radiation Oncology Medical Group learned from Integrated Oncology Network, a company that provides administrative services, that an email phishing incident that resulted in unauthorized access to patient information. The breach occurred between Dec. 13, 2024, and Dec. 16, 2024 when unauthorized parties accessed email and SharePoint accounts.
The data breach compromised both personally identifiable information (PII) and protected health information (PHI). Orange County Radiation Oncology Medical Group disclosed the data breach to the U.S Department of Health and Human Services on June 27, 2025, reporting 1,911 patients impacted.
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
Orange County Radiation Oncology Medical Group posted a notice about the breach on their website and impacted individuals by mail. The cybersecurity incident was reported to the California Attorney General's office on July 15, 2025.
Your Rights and Next Steps
If you received a data breach notice from Orange County Radiation Oncology Medical Group 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.
You May Be Entitled to Compensation
If your personal or health information was exposed in this breach, you may be eligible to join a lawsuit seeking compensation, which can include reimbursement for out-of-pocket expenses, time spent addressing the breach, or payment for emotional distress. Lawyers are ready to help you take action.
To find out if you qualify and to join the lawsuit, complete the form below.
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