What Is a DO, and How Does the AOA Support Osteopathic Physicians?

A DO is a doctor of osteopathic medicine — a fully licensed physician who can practice in any medical specialty in the United States. The American Osteopathic Association (AOA) is the national professional organization that represents these physicians and medical students, and it serves as the primary certifying body for DOs. If you are trying to understand the DO credential, how it differs from an MD, or what the AOA actually does, the sections below cover the essentials.

What "DO" means

DO stands for Doctor of Osteopathic Medicine. Like an MD, a DO completes four years of medical school, a residency, and licensing exams, and can prescribe medication, perform surgery, and practice in any specialty.

The distinguishing feature is the osteopathic approach: DOs are trained to consider how the musculoskeletal system, nerves, and organs interact, and they receive additional training in osteopathic manipulative medicine (hands-on diagnosis and treatment of the body's structure). The philosophy is often summarized as treating the whole patient rather than a single symptom.

Both credentials lead to the same practice rights in the U.S. The difference is in training emphasis, not in legal authority.

What the AOA is

The American Osteopathic Association is the national membership organization for osteopathic physicians and medical students. According to the organization, it represents more than 218,000 osteopathic physicians and medical students, promotes public health, and acts as the primary certifying body for DOs.

That gives the AOA three overlapping roles:

• Representative body — advocates for DOs and their patients on health policy and public health issues.
• Certifying body — oversees the certification process that recognizes a DO's competence in a specialty.
• Professional community — provides membership resources, continuing education, and support across a physician's career.

How the AOA supports physicians and students

The AOA's own framing is direct: "You take care of patients. We take care of you." In practice, that support shows up in a few areas:

• Certification — as the primary certifying body, the AOA administers the process by which DOs earn and maintain specialty board certification.
• Membership resources — the Member Resource Center handles account and access questions for members.
• Public health advocacy — the organization works on health issues affecting the public and the profession.
• Students and early-career DOs — the AOA includes medical students within its represented membership, not just practicing physicians.

Accessing AOA resources

The AOA has moved its websites to a new login system. If you are a member or need to reach AOA services, here is how to get in:

1. Username — use the email address associated with your AOA account.
2. Password — if you have not set up new credentials, click "Forgot password?" on the login page to begin.
3. Questions — contact the AOA Member Resource Center if the reset does not work or you are unsure which email is on file.

The key detail is that your login is tied to your AOA account email, so a password reset is the starting point for anyone who has not yet migrated to the new system.

Quick answers

Is a DO a real doctor? Yes. A DO is a fully licensed physician with the same practice rights as an MD.

What does the AOA do? It represents osteopathic physicians and students, promotes public health, and certifies DOs.

How many people does it represent? More than 218,000 osteopathic physicians and medical students.

How do I log in to AOA sites? Use your account email as the username and reset your password via "Forgot password?" if needed.