This paper aims to identify some of the values held by physicians in the United States that are relevant to physician strikes and other collective actions, and to articulate a position about collective actions that is consistent with medical professionalism. The concept of medical professionalism includes several elements to which physicians should aspire, but the fundamental definition of professionalism is based on just one of these elements, the virtue of altruism. As stated by a committee project paper of the American Board of Internal Medicine, “professionalism in medicine requires the physician to serve the interests of the patient above his or her self-interest.”