Compare the paths
CRNA vs. anesthesiologist assistant
Certified registered nurse anesthetist (CRNA) or certified anesthesiologist assistant (CAA)? The two paths differ in how you get in, who you work under, where you can work at all, and what is actually published about pay. The anesthesiologist column is here because the three share an operating room and the comparison only makes sense together.
All three deliver anesthesia care, but the paths and practice rules differ a lot. CRNAs come from nursing; Certified Anesthesiologist Assistants (CAAs) come from a premed background; anesthesiologists are physicians.
Side-by-side comparison
| CRNA | CAA | Anesthesiologist | |
|---|---|---|---|
| Provider type | Advanced practice registered nurse (APRN) | Anesthesiologist Assistant (master's-level) | Physician (MD/DO) |
| Degree | Doctor of Nursing Practice (DNP; required for new CRNAs since 2025) | Master's (Anesthesiologist Assistant) | MD/DO + anesthesiology residency |
| Prerequisite background | BSN + RN license + critical-care (ICU) experience | Bachelor's with premed prerequisites (no nursing required) | Bachelor's + medical school |
| Certification | NBCRNA (National Certification Exam) | NCCAA | American Board of Anesthesiology |
| Scope | Full anesthesia care | Anesthesia care within the Anesthesia Care Team | Full medical + anesthesia scope; can medically direct |
| Autonomy / supervision | Can practice independently in opt-out states (27); rules vary by state | Always works under the direction of an anesthesiologist (Care Team model) | Independent; oversees care teams |
| Where they can practice | All 50 states | 23 states and D.C. (where licensed/recognized) | All 50 states |
| Time to become | ~7–8+ yrs (BSN → ICU → DNP) | ~6–7 yrs (bachelor's → 24–29 month master's) | ~12+ yrs (bachelor's → med school → residency) |
| Median pay | ~$236,590 (BLS, May 2025) | No separate federal figure is published — see below | ~$400,000+ |
What is actually published about pay
For nurse anesthetists there is a federal figure: the Bureau of Labor Statistics reports a median wage of about $236,590 (May 2025) under its own occupation code.
For anesthesiologist assistants there is not. BLS has no separate wage series for them. O*NET lists anesthesiologist assistants as a detailed occupation (29-1071.01) underneath Physician Assistants (29-1071), and the wage shown on that page is labeled, in O*NET's own words, median wage data for physician assistants — an aggregate of roughly 162,700 people, very few of whom are CAAs.
That is why you will see a figure near $136,000 quoted as CAA pay. It is the physician-assistant median wearing the wrong label. We are not going to repeat it, and we are not going to invent a replacement: salary surveys from professional bodies and employers exist, but they are not a federal series and they are not something we have verified.
What can be said without guessing: CAA compensation is generally reported well above the physician-assistant median and is negotiated in a much smaller market — a few thousand practitioners, concentrated in the states that recognize the credential. If pay is deciding your path, ask programs for their own graduate outcomes and ask practicing CAAs directly, rather than trusting any published number including ours.
Key differences
CRNA = nursing + ICU; CAA = premed bachelor's (no nursing); Anesthesiologist = medical school.
CRNAs can practice independently in opt-out states; CAAs always work under an anesthesiologist; anesthesiologists lead the team.
CRNAs in all 50 states; CAAs limited to 23 states and D.C.; anesthesiologists everywhere.
Choosing your path
Boost supports both the CRNA and CAA application paths — score your profile, find best-fit programs, and prep your application end to end.
See which path fits →Scope of practice and state recognition change over time. Verify current rules with your state board, the AANA (CRNA), and the AAAA/NCCAA (CAA). Salary figures are approximate and vary.