ACP is a national organization of internists, the largest medical-specialty organization, and second-largest physician group in the United States. Our 161,000 members include internists, internal medicine subspecialists, medical students, residents, and fellows.

Internal medicine physicians are specialists who apply scientific knowledge and clinical expertise to the diagnosis, treatment, and compassionate care of adults across the spectrum from health to complex illness.

ACP strives to embody a diverse, inclusive and equitable organization that facilitates effective and respectful interaction among individuals who hold a broad range of views, and respect, empathy and understanding of others.