How much does an Illinois Medical Marijuana Certificate Cost? It costs $100 for new patients who want an Illinois medical marijuana certificate for 2 years. $50 for veterans or those enrolled in a federal Social Security Disability Income (SSDI) or Supplemental Security Income (SSI) program. The application fee to register, payable to the state, is $200 for a 2-year Illinois medical marijuana recommendation. For persons enrolled in federal Social Security Disability Income (SSDI) or Supplemental Security Income (SSI) disability programs, the state application costs are: 1 Year = $50 2 Years = $100 3 Years = $125 These costs are separate from the cost of the $149 physician’s fee.