Partnership HealthPlan of California Data Breach Investigation

Turke & Strauss LLP, a leading data breach law firm, is investigating Partnership HealthPlan of California regarding its recent breach. The Partnership HealthPlan of California data breach involved sensitive personal identifiable information and protected health information of over 850,000 patients.


Partnership HealthPlan of California is a public/private organization servicing 550,000 Medi-Cal beneficiaries in 14 northern California counties. Partnership HealthPlan of California was founded in 1994 and is the largest Medi-Cal managed care plan in Northern California.


On March 19, 2022, Partnership HealthPlan of California experienced a data breach involving the sensitive personal identifiable information and protected health information of patients. Between May 18 and May 23, 2022, Partnership HealthPlan of California began notifying patients whose information may have been impacted. The type of patient information exposed includes:

  • Name
  • Social Security number
  • Date of birth
  • Driver’s license number
  • Tribal ID number
  • Medical record number
  • Treatment diagnosis
  • Prescription and other medical information
  • Health insurance information
  • Member portal username and password
  • Email address
  • Address

If you have provided your personal information to Partnership HealthPlan of California:

We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at (608) 237-1775 or

If you were impacted by the Partnership HealthPlan of California data breach, you may consider taking the following steps to protect your personal information.

  1. Carefully review the breach notice and retain a copy;
  2. Enroll in the free credit monitoring service provided by Partnership Health Plan of California;
  3. Change passwords and security questions for online accounts;
  4. Regularly review account statements for signs of fraud or unauthorized activity;
  5. Monitor credit reports for signs of identity theft; and
  6. Contact a credit bureau(s) to request a temporary fraud alert.

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