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Membership Categories


There are many organizations available to today's osteopathic internist. ACOI is the only one, however, whose sole purpose is to foster the continued success and future growth of osteopathic internal medicine.

Members of the ACOI join for many reasons: continuing education, networking, camaraderie. Not surprisingly, many join to give something back to their profession.

Membership in the ACOI is available to all osteopathic internists, internal medicine trainees, and medical students. The membership categories are as follows:


An osteopathic physician who has completed either an American Osteopathic Association (AOA) or Accreditation Council on Graduate Medical Education (ACGME) approved residency training program in internal medicine, who holds a valid license to practice medicine and who shows evidence of active practice in internal medicine. Those involved in internal medicine research, education or administration are also eligible for Active Membership.
Online Application
Download Active Member Application


Physicians and other professionals whose professional activities are in a specialized field cooperating with, or allied to osteopathic internal medicine, or whose practices are largely in the field of internal medicine, but who are not eligible for Active or Candidate membership
Online Application
Download Associate Member Application


Osteopathic physicians who are in formal training programs in internal medicine or a medical subspecialty approved by the AOA or ACGME; or those who have completed such programs and who are in the process of qualifying for Active member status.
Online Application
Download Candidate Member Application


Those who are enrolled as students in a college of osteopathic medicine approved by the American Osteopathic Association and who have an interest in the field of internal medicine.
Online Application
Download Student Member Application


An Active Member who has been in good standing continuously for 35 years.
Online Application
Download Emeritus Member Application


An Active Member in good standing who is retired from active practice, but not eligible for Emeritus status.
Online Application
Download Retired Member Application