Maryville Addiction Treatment Center Data Breach Investigation

Turke & Strauss LLP, a leading data breach law firm, is investigating Maryville Addiction Treatment Center (“Maryville”) regarding its recent data breach. The Maryville data breach involved sensitive personal identifiable information and protected health information belonging to an undetermined number of individuals.


Maryville is a nonprofit addiction treatment organization based in New Jersey. Founded in 1949, Maryville provides comprehensive, high-quality substance use disorder and co-occurring mental health services for individuals and families, utilizing evidenced-based practices and producing positive outcomes throughout service delivery.2 Today, Maryville’s programming includes community education, outpatient and intensive outpatient treatment in Turnersville and Vineland Certified Community Behavioral Health Clinics, and medically monitored detoxification and residential substance use and gambling treatment in Williamstown and Pemberton.2 Headquartered in Williamstown, New Jersey, Maryville has three additional locations in New Jersey and employs over 50 individuals.


Recently, Maryville discovered that it had experienced a data breach in which sensitive personal identifiable information and protected health information may have been accessed and acquired. Through its investigation, Maryville determined that an unauthorized actor may have accessed this sensitive information through a corporate email account between August 21 and August 22, 2023. On February 20, 2024, Maryville began notifying individuals whose information may have been impacted. The type of personal information potentially exposed includes:

  • Name
  • Social Security number
  • Date of birth
  • Government identification
  • Financial account information
  • Medical treatment information
  • Health insurance information

If you received a breach notification letter from Maryville Addiction Treatment 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 (608) 237-1775 or

If you were impacted by the Maryville 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 any free credit monitoring services provided by Maryville Addiction Treatment Center:
  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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