It is not legal if it is used with an intent to defraud the people that accredit the center.  And it is not legal if it is not true.  And it is not legal to not advise you of what they did.  It may be time for you to consult with an attorney in your area on this matter to determine how you wish to proceed here.  Undoubtedly the accrediting institution has to be advised and you would have to withdraw your name from the application.  As for a lawsuit as against the surgery center, that is something you will have to explore with the attorney.  In the mean time a "cease and desist" type letter needs to be sent on your behalf to protect your license. Good luck.