Strauss Borrelli PLLC, a leading data breach law firm, is investigating Petaluma Health Center regarding its recent data breach. The Petaluma Health Center data breach involved sensitive personal information and protected health information belonging to an undetermined number of individuals.
ABOUT PETALUMA HEALTH CENTER:
Petaluma Health Center is a healthcare center based in California. Founded in 1996, Petaluma Health Center provides a range of healthcare services to patients, including acupuncture care, behavioral health services, dental care, family medicine, pediatrics, optometry, and more.2,3 Additionally, Petaluma Health Center serves over 41,000 patients annually.2 Headquartered in Petaluma, California, Petaluma Health Center employs over 120 individuals and operates 12 community locations.2
WHAT HAPPENED?
Recently, Petaluma Health Center reported to the Attorney General of California that it had experienced a data breach in which sensitive personal identifiable information and protected health information in its care may have been compromised. According to the breach notice, on December 15, 2025, Petaluma Health Center’s electronic medical record system OCHIN notified Petaluma Health Center that an unauthorized individual gained access to one of the systems belonging to TriZetto, a third-party company that works with OCHIN.1 As a result, TriZetto launched an investigation to determine the nature of the incident.
Through its investigation, TriZetto confirmed to Petaluma Health Center that sensitive personal information in TriZetto systems related to Petaluma Health Center patients may have been accessed by an unauthorized third party during the breach. As a result, Petaluma Health Center began a review of the data to determine what information had been impacted as well as identify the specific individuals affected. While the information impacted varies depending on the individual, the type of information potentially exposed includes:
- Name
- Social Security number
- Date of birth
- Contact information
- Health-related or insurance information
As a result of the breach, Petaluma Health Center began mailing data breach notification letters to impacted individuals. Based on the breach notice sent to California residents, Petaluma Health Center and TriZetto are providing affected individuals with a list of the specific types of sensitive information impacted and complimentary credit monitoring services. A link to the form breach notification letters that Petaluma Health Center filed with the Attorney General of California is below.
If you received a breach notification letter from Petaluma Health Center:
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 872.263.1100 or sam@straussborrelli.com.
