Is it possible to get a license to practice medicine after being admitted into drug rehab?

Will it just be really hard to get into medical school or is it impossible to get your license to practice? Will the school even know that you have been admitted if you don't tell them?

: http://alcoholdrugstreatment.info/is-it-possible-to-get-a-license-to-practice-medicine-after-being-admitted-into-drug-rehab