The boss of a celebrity rehabilitation clinic where stars including Amy Winehouse and Jonathan Rhys Meyers were treated has been struck off by a medical governing body.

Former nurse Brendan Quinn, who co-founded the Causeway Retreat in Essex, England in 2005, falsely claimed to be a doctor, a disciplinary tribunal in the U.K. heard.

The $16,000 (£10,000 )-a-week clinic closed in 2010 and bosses were hit with a fine and costs for $60,800 (£38,000) for treating patients without a proper licence.

Now Quinn has been struck off by officials at the Nursing and Midwifery Council in London for a string of misconduct charges after leaving drugs in an unlocked room and failing to properly supervise patients.

Panel chairman James Spencer told Quinn, "You consistently placed your own commercial needs above those of highly vulnerable patients. You not only deceived the public as to your correct qualifications, by holding yourself out as a doctor, you also deceived those involved in ensuring correct registration of services as to the exact nature of the services provided at the Causeway...

"You allowed particularly vulnerable patients to be admitted into an unregistered and unsafe environment... Throughout the period of the charges, you demonstrated a flagrant disregard for patient safety. The panel was also satisfied that your misconduct brought the reputation of the profession into disrepute."

Quinn had denied all the charges, claiming they were based on lies by former members of staff at the clinic.