Cal-COBRA is jointly regulated by the CDI and the Department of Managed Health Caredepending upon the type of group coverage (indemnity or HMO).
California Department of Insurance
Consumer Services Division
300 South Spring Street, South Tower
Los Angeles, CA 90013
(916) 492-3545
Department of Managed Health Care
https://wpso.dmhc.ca.gov/ContactForm/1-888-466-2219