Board certified means a doctor or healthcare provider has passed a rigorous exam in their specialty after completing all required training, proving they have expertise beyond what’s needed for a basic medical license. It’s a voluntary credential, not a legal requirement to practice medicine, but it signals a higher standard of knowledge and skill in a specific field.
Board Certification vs. a Medical License
Every doctor in the United States needs a state medical license to see patients. That license confirms minimum competency to diagnose and treat, but it isn’t tied to any particular specialty. A licensed physician can legally practice in areas outside their training.
Board certification is different. It’s specialty-specific, voluntary, and sits on top of licensure as an additional layer of verification. A board-certified cardiologist, for example, has not only earned a medical degree and a state license but also completed a cardiology training program and passed an exam designed by other cardiologists. The American Medical Association describes it as demonstrating “exceptional expertise in a particular specialty or subspecialty of medical practice.”
What It Takes to Get Board Certified
The path is long. A physician first completes medical school, earning either an MD or a DO degree. After that comes a residency, which lasts three to seven years depending on the specialty. During residency, a doctor can call themselves “board eligible,” meaning they’re on track but haven’t yet passed the certification exam.
The exam itself typically happens during the final year of residency. It’s usually computer-based, though some specialties require an oral exam or split the test into a general section and a specialty-specific section. Candidates must meet all training requirements set by their specialty board before sitting for the exam. Doctors who want to narrow their focus further (say, from general surgery to surgical oncology) can pursue subspecialty certification after completing a fellowship, adding another layer of testing. Across all 24 member boards of the American Board of Medical Specialties (ABMS), there are 38 recognized specialties and 89 subspecialties.
Who Oversees the Process
For MDs, the ABMS and its 24 member boards set the standards and administer exams. Each member board covers a different area of medicine, from internal medicine to dermatology to neurological surgery. For DOs (doctors of osteopathic medicine), the American Osteopathic Association runs a parallel certification system with its own boards and exams. DOs can also pursue ABMS certification, and those who hold one credential can sometimes qualify for the other through defined pathways.
It’s Not Just for Doctors
Nurse practitioners, for instance, earn board certification through organizations like the American Nurses Credentialing Center. A family nurse practitioner who passes the ANCC exam earns the credential FNP-BC (Family Nurse Practitioner-Board Certified). The eligibility requirements are substantial: an active RN license, a master’s degree or higher from an accredited nurse practitioner program, at least 500 supervised clinical hours, and graduate-level coursework in pharmacology, pathophysiology, and advanced health assessment. Similar board certification processes exist across many healthcare professions.
Does Board Certification Affect Patient Outcomes
There’s evidence it does, particularly in surgery. A 2022 study published in the Annals of Surgery found that early-career general surgeons who were board certified had lower complication and death rates when performing colon resections than those who weren’t certified. The same study looked at malpractice data and found that surgeons who attempted and failed their certification exam were 87% more likely to have malpractice payment reports compared to those who passed. Even the specific exam stage mattered: surgeons who failed either the written qualifying exam or the oral certifying exam had significantly higher malpractice rates than those who passed on their first attempt.
None of this means a non-certified doctor is necessarily unsafe. But the data suggests that the certification process does filter for measurable differences in clinical performance.
Staying Certified Over Time
Board certification isn’t permanent. Doctors must participate in ongoing programs, often called Maintenance of Certification, that include earning continuing education credits and periodically passing assessments. The specifics vary by specialty board, but the goal is the same: ensuring a physician’s knowledge stays current throughout their career.
The format of these assessments is evolving. Traditionally, doctors faced a high-stakes exam every ten years or so, requiring significant preparation time and time away from patients. Several boards now offer longitudinal assessments as an alternative. The American Board of Family Medicine, for example, lets physicians answer a smaller number of questions on a rolling basis throughout the year instead of sitting for a single daylong test. These open-book, spaced-out assessments are designed to better reflect how doctors actually look up information in practice.
How to Check if Your Doctor Is Board Certified
The ABMS runs a free public tool called “Certification Matters” at certificationmatters.org, where you can look up any physician’s board certification status by name. The search shows which specialty they’re certified in, whether that certification is current, and which board issued it. Individual specialty boards often have their own verification tools as well. If your provider is a nurse practitioner or another non-physician clinician, the credentialing organization for their profession will typically offer a similar lookup service.