Accidental Injury (Subrogation)

When you are injured and someone else is at fault, subrogation is a way to get them to pay some or all of your health care claims. Common cases are:

  • Work-related injuries
  • Motor vehicle accidents (whether you are hurt in or around a vehicle)
  • Slip and fall injuries on someone else’s property (such as a store)

If you are ever injured, let HPSM know right away by calling the number for your health plan below

CareAdvantage, Healthy Kids & HealthWorx:

Call 866-680-0996

  • That is the number for Optum, HPSM's vendor that handles subrogation cases.
  • Optum may ask you for facts about the accident, insurance claims and your lawyer’s contact information (if you have one)
  • In most cases, once you give Optum all the needed facts, you are done
  • Optum then works directly with the proper parties to get all valid claims paid
  • If Optum does ask you follow-up questions, answer quickly. This helps them get your claims paid faster
  • If you have received a letter from Optum with a case number, visit
  • For more information about Optum's subrogation process, see their Frequently Asked Questions


Call 916-445-9891 or visit the DHCS website.


Call the San Mateo Medical Center Finance Office at 650-573-2525.