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AltaMed 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 AltaMed Health Services Corporation 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 AltaMed Health Services Corporation
AltaMed Health Services Corporation is a community-based health provider that serves Latino and multi-ethnic communities throughout Southern California. Founded in 1969, AltaMed has grown into a large health network focused on delivering primary care, social programs, and managed care services to underserved populations.
The organization operates through an integrated delivery system, partnering with providers and health plans to offer comprehensive services across the region.
In 2020, AltaMed expanded its reach with the creation of AltaMed Health Network, Inc. (AHN), a managed care network serving over 250,000 Medi-Cal members, which brought their headcount to more than 1,800 employees.
What happened?
In August 2024, AltaMed Health Services Corporation experienced a significant data breach that exposed sensitive information belonging to patients and members. The breach occurred between August 5, 2024, and August 9, 2024. AltaMed disclosed the incident to the California Attorney General’s office on June 13, 2025.
This breach has the potential to impact a large number of individuals, as AltaMed is one of the largest community health networks in the nation.
What types of consumer information that were exposed?
Personally Identifiable Information:
- Social Security number
- Date of birth
- Driver or state license number
- Passport number
- Foreign national ID number
- Personal email
- Personal telephone
- Mother’s maiden name
- Username and password
Protected Health Information:
- Medical record number
- Medicare or Medicaid ID
- Medical billing information
- Doctor or provider name
- Date of service
- Payment for health services
- Medical history
- Medical treatment information
- Mental or physical condition or diagnosis
- Procedure information
- COVID test result or vaccination status
- Prescription information
- Incidental health reference
- Health insurance policy number
- Other health insurance information
- Genetic data
Your Rights and Next Steps
If you received a notification from AltaMed about this data breach, you have important rights. Data breaches can put you at risk for identity theft, financial fraud, and other serious consequences. Because of the sensitive nature of the information exposed—including Social Security numbers, medical records, and insurance details—it’s crucial to act quickly.
Here’s what you can do:
- Review any communications from AltaMed regarding the breach and keep them for your records.
- Monitor your credit reports and financial accounts for any unusual activity.
- Consider placing a fraud alert or credit freeze with the major credit bureaus.
- Watch out for suspicious emails, calls, or letters that may be phishing attempts.
- Take advantage of any free credit monitoring or identity theft protection services offered by AltaMed.
- Consult with lawyers experienced in data breach cases to understand your legal options and whether you may be eligible for compensation.
Lawyers are ready to help you navigate your rights, assess your eligibility for a lawsuit, and pursue compensation for any damages or risks you have faced as a result of this breach.
You May Be Entitled to Compensation
If your personal information was compromised in the AltaMed data breach, you may be entitled to compensation. Compensation can cover losses such as identity theft, time spent dealing with the breach, and emotional distress. Lawyers are actively investigating this breach and are prepared to help affected individuals join a class action lawsuit.
To find out if you qualify and to take the next step, complete the below form to join the lawsuit investigation.
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