Of course yes. Many hospitals work unethical and illegal nowadays. A patient has to be admitted in case of emergency. Else it is a form of medical malpractice. In such case you can go for a legal consultation and get a medical malpractice lawyer. Always hire an effective driven legal team. Monteith Baker Johnston and Doodnauth at Newmarket, Ontario is the one which I know.
By law anyone who enters an emergency room and asks to be seen must be seen. However, that does mean you will be quickly seen... many people use Emergency Rooms for issues that are not truly emergencies and ERs get clogged up and backed up with sometimes dozens and dozens of people waiting to be seen. True emergencies are seen quickly but unless you have a serious emergency, you can wait quite a while in an ER before you are seen by a doctor.
If you are denied entrance into the Emergency Room waiting area that would be a violation of federal law. If you enter the waiting area and they would refuse to allow you to stay without being seen by a nurse or a doctor that would be a violation of federal law. Is that the same thing as medical malpractice?
Not really. But you can always contact a lawyer - there are many lawyers who take possible medical malpractice cases. They advertise on televison all the time.