In it they stated that the United States Constitution would grant a competent person a constitutionally protected right to refuse<span> life-saving </span>medical treatment<span> Whether for financial, spiritual or religious reasons, a </span>patient has<span> the ultimate say over what is done to his or her body.</span>
Yes they can such as blood transfusion doctors cannot force you too. Unless you are a child and your parents refuse the medical treatment, in some states they will take your child way if refused it.
