They made the information public, but you helped to make sure his friends see it here. If it weren't for you, a lot of us probably would never know. It doesn't give him a chance to be the one to inform us on it, if that is something he wanted to do. I don't think you had any bad intention, but like I said, I wouldn't have done it.
This is the part I wish to address and piggyback on Remi. The person is sick and needs help. The flags have been thrown, the cries have been made and yet he continued on due to fail safes within the system and society not noticing until too late. He has his life and he has pieces to pick up, the career, possibly forever gone however that is a fair consequence (for those who insist when one must be punished).
When he violated public/patient trust, he no longer has a complete expectation of privacy either. People need to know to prevent further harm to others and further harm to himself. He is probably at his worst. He is in no stage to "share or out himself to friends". This is a situation where the circle is informed and the circle tightens up (if they are true friends and family). This is where the condemnation and toxic shame or judging stops if on the inside circle. This is where people who are close say..."Wow, you really F*kced up, you are sick, you need help and I will do my part, but you got to do yours". Boundaries MUST be established and defined if you are one who chooses to assist. It is a tough road for all involved.
But like Remi said, this is a disease. Sure, bad choices got them there, will keep them there for a while but why is the initial reaction to turn our backs and shame the person? Would you do this to the coal miner with black lung, he after all chose to go in knowing the risks.
I am not a fool, he will most likely fall, and fall again. But stop the shame, circle the group and know when to bail, because your safety/security/health should always come before his, however until a non-negotiable boundary is broken...say the name, spread the word and offer what you can.