The seeds for what would become the ACOI were planted in July 1923 at the legendary Waldorf Astoria hotel in New York City with the founding of the American Society of Osteopathic Internists (ASOI). Shortly after its inception, the ASOI experienced difficulties in maintaining its membership. In response to this challenge, and in an effort to preserve the burgeoning osteopathic internal medicine organization, the ASOI allowed for the formation of divisional societies. In 1941, the California division of the ASOI reorganized to form the modern-day American College of Osteopathic Internists.
Mission:
The mission of the ACOI is to promote high quality, distinctive osteopathic care of the adult.
Vision:
The ACOI seeks to be the organization that osteopathic internists think of first for education, information, representation and service to the profession.