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Memorial 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 Memorial 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 Memorial Radiation Oncology Medical Group
Memorial Radiation Oncology Medical Group is a medical practice based in Southern California, with offices in Long Beach, Fountain Valley and Laguna Hills. The group specializes in providing radiation therapy for cancer patients.
What happened?
On June 13, 2025, Memorial 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). Memorial Radiation Oncology Medical Group disclosed the cybersecurity incident to the California Attorney General's office on July 15, 2025 and is notifying affected patients by mail.
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
Your Rights and Next Steps
If you received a data breach notice from Memorial 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.
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 information was exposed in this data breach, you may have the right to seek 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 individuals affected by this breach pursue claims.
To find out if you qualify and to join a potential lawsuit, complete the form below.
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