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Community Medical Centers
Data Breach

The Lyon Firm is actively involved in healthcare data breach lawsuits nationwide
Nationwide Success

Health Data Privacy Lawyer

Investigating Community Medical Centers data breach claims

Thank you for considering The Lyon Firm. At this time, we are not accepting plaintiffs related to this specific consumer issue. However, if you would like to be contacted in the future, please complete the contact form. By completing the form you will be contacted if the Firm begins accepting new cases on this matter, and you will also be included in firm news alerts related to important consumer safety and privacy issues to help keep you informed about related issues.

Community Medical Centers of Stockton, California shut down their IT network in October 2021 due to “unusual network activity.” Weeks later the healthcare system announced that a data breach incident may have impacted the personal information of over 656,000 individuals.

On October 10th, Community Medical Centers detected unusual network activity, and later confirmed that the following personal information may have been compromised by an unauthorized third party:

  • Name
  • Mailing address
  • Social Security number
  • Date of birth
  • Demographic information
  • Medical information

The non-profit Stockton, CA health agency operates community health clinics serving mostly low-income residents and the homeless. Health care hacking incidents have increased for the fifth year in a row, and many other California networks have been breached. United Health Centers in Fresno was also recently targeted in a ransomware attack.

Community Medical Centers is one of only a few federally funded medical clinics in the region. They are a regional primary health care system serving more than 100,000 patients in San Joaquin, Solano and Yolo counties.

The Lyon Firm is investigating the Community Medical Centers data breach and is actively involved in numerous data privacy cases and has experience filing data security claims on behalf of plaintiffs nationwide.


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Joseph Lyon has 17 years of experience representing individuals in complex litigation matters. He has represented individuals in every state against many of the largest companies in the world.

The Firm focuses on single-event civil cases and class actions involving corporate neglect & fraud, toxic exposure, product defects & recalls, medical malpractice, and invasion of privacy.


The Firm offers contingency fees, advancing all costs of the litigation, and accepting the full financial risk, allowing our clients full access to the legal system while reducing the financial stress while they focus on their healthcare and financial needs.