A nurse anesthetist is not a medical doctor. A certified registered nurse anesthetist (CRNA) is an advanced practice registered nurse who specializes in administering anesthesia. While CRNAs now earn doctoral degrees as part of their training, they follow a completely different educational path than physician anesthesiologists and do not attend medical school.
Why the Confusion Exists
The “doctor” question has gotten more complicated in recent years because of a change in educational requirements. As of January 1, 2025, all new graduates from nurse anesthesia programs must hold a doctoral degree, either a Doctor of Nursing Practice (DNP) or a Doctor of Nurse Anesthesia Practice (DNAP). This means a newly graduated CRNA has technically earned a doctorate, but it is a nursing practice doctorate, not a medical degree (MD or DO).
Having a doctoral degree entitles someone to use the title “Dr.” in academic settings. But in clinical settings, using that title can create confusion. Some state medical boards have pushed back on this. Ohio’s State Medical Board, for example, issued a position statement saying that CRNAs should not use the term “anesthesiologist” in their title because it misleads patients into thinking they are physicians. The broader concern is that patients encountering someone called “Doctor” in a hospital reasonably assume that person is a physician.
How CRNA Training Differs From an Anesthesiologist’s
The gap in training between a CRNA and a physician anesthesiologist is substantial. A CRNA starts as a registered nurse, works at least one year in critical care, then completes a 36-month graduate program in nurse anesthesia. They do not attend medical school and do not complete a medical residency. During their program, they accumulate roughly 2,500 hours of hands-on clinical anesthesia care.
An anesthesiologist, by contrast, completes four years of medical school followed by four years of residency, and often one to two additional years of fellowship in a subspecialty. That adds up to eight to ten years of post-graduate education. Over that time, they log between 12,000 and 16,000 patient-care hours, roughly five to seven times more clinical anesthesia experience than a CRNA receives during training.
What CRNAs Actually Do
Despite the training difference, the day-to-day clinical work of a CRNA overlaps significantly with what an anesthesiologist does. CRNAs administer anesthesia for surgeries, manage pain during labor, place breathing tubes, monitor patients’ vital signs throughout procedures, and adjust medications in real time. In many hospitals, CRNAs work as part of an anesthesia care team led by a physician anesthesiologist. In that model, the anesthesiologist oversees the anesthesia plan and may supervise multiple CRNAs simultaneously.
In other settings, CRNAs practice with more independence. Twenty-five states and Guam have opted out of the federal requirement that CRNAs be supervised by a physician. In those states, CRNAs can deliver anesthesia without a physician anesthesiologist directing or overseeing their care. This is especially common in rural hospitals and smaller surgical centers where an anesthesiologist may not be available. For many patients in these areas, a CRNA is the sole anesthesia provider they’ll encounter.
Does It Matter for Patient Safety?
This is the question most patients really care about, and the honest answer is that the existing research doesn’t give a clear winner. A systematic review of studies comparing patient outcomes between CRNAs and physician anesthesiologists found very few high-quality studies on the topic. The studies that did exist used different methods, had confounding factors, and defined “supervision” inconsistently. The reviewers concluded it was not possible to draw a firm conclusion about differences in patient safety based on provider type.
What this means in practice is that both CRNAs and anesthesiologists deliver safe anesthesia care in the settings where they typically work. The more relevant factor for your safety is the overall system: how well the surgical team communicates, whether the facility is properly equipped, and whether the anesthesia provider (whoever they are) has experience with your specific type of procedure.
How to Tell Who’s Providing Your Anesthesia
If you’re having surgery, you have every right to ask whether your anesthesia will be administered by a CRNA, an anesthesiologist, or a team that includes both. Hospitals and surgical centers are generally required to inform you, and many include this information in pre-surgical paperwork. The credentials after someone’s name tell the story: MD or DO indicates a physician, while CRNA indicates a nurse anesthetist. A CRNA with a DNP after their name holds a nursing doctorate but is not a medical doctor.
If your procedure is complex, involves significant health risks, or you have multiple medical conditions, you may want to ask whether a physician anesthesiologist will be involved in your care plan. For routine procedures in otherwise healthy patients, CRNAs provide anesthesia independently across the country every day without issue.