Data Breach Notifications

Entity Information

  • Type of Organization: Healthcare
  • Entity Name: the group health plans of Stanford Health Care, of Stanford Health Care, Lucile Packard Children's Hospital Stanford, Stanford Health Care Tri-Valley, Stanford Medicine Partners, and Packard Children's Health Alliance
  • Street Address: 300 Pasteur Drive, MC 5780
  • City: Stanford
  • State, or Country if outside the US: CA
  • Zip Code: 94305

Submitted By

  • Name: Ian O’Neill
  • Title: Global Head of Legal
  • Firm name (if different than entity): Welltok, Inc.
  • Telephone Number: 7199851255
  • Email Address:
  • Relationship to entity whose information was compromised: Business Associate

Breach Information

  • Total number of persons affected (including residents): 1,648,848
  • Total number of Maine residents affected: 8
  • If the number of Maine residents exceeds 1,000, have the consumer reporting agencies been notified: No
  • Date(s) Breach Occured: 05/30/2023
  • Date Breach Discovered: 10/218/2023
  • Description of the Breach:
    • External system breach (hacking)
  • Information Acquired - Name or other personal identifier in combination with:

Notification and Protection Services

  • Type of Notification: Written
  • Date(s) of consumer notification: 10/17/2023
  • Copy of notice to affected Maine residents: Welltok Inc. - Notice of Data Event - ME.pdf
  • Date of any previous (within 12 months) breach notifications: 11/13/2023
  • Were identity theft protection services offered: Yes
  • If yes, please provide the duration, the provider of the service and a brief description of the service: Experian, Credit Monitoring and Identity Restoration Services