Because Obamacare rules require insurance companies to pay for addiction treatment, and health insurance policies can be purchased through Covered California immediately upon arrival in the state, disreputable rehab centers advertise nationally to bring in addicted individuals from all over the country, even offering “scholarships” that cover their travel expenses and insurance premiums and deductibles. Once these individuals are set up in a “rehab” program, the program operators bill the insurance company for a wide range of services while providing very little in the way of effective treatment.