He is now blaming the victims. People are posting about how it's the hospital's responsibility to address the issue with the physician, because there is no way for a patient to know whether a physician declined to run tests or declined to take complaints seriously based on sexual orientation or perceived sexual orientation. Paul Levy maintains that it is the patient's duty to complain if there is incompetence on the physician's part. But see, the patient isn't the one who reviews the physician's work and asks why certain decisions were or were not made.
He also insists that there cannot be rules about what is allowed to be said in a workplace, because this would be "thought policing" (his words). No, it wouldn't be thought policing, because no one is asking you to read people's thoughts. We're asking you to take action based on the fact that this physician wrote a letter, full of medically incorrect information, stating that GLBT folks are inherently bad. According to the BIDMC human resources website, there are rules prohibiting written or spoken speech that is discriminatory. There are also rules requiring doctors to keep abreast of medical research. There absolutely can be rules about what can be said in a workplace, and there are. Would he use the same excuse if someone circulated a letter saying a coworker had nice tits?
If you haven't already, please write to BIDMC and tell them how dangerous and irresponsible this is.