Can Anesthesiologist Assistants Practice in Missouri?
Yes — CAAs are licensed in Missouri.
Missouri licenses AAs through the State Board of Registration for the Healing Arts under RSMo 334.400–334.430 (since 2003). You must hold active NCCAA certification and practice under a written supervision agreement with an anesthesiologist, who may direct at most four AAs at once.
Where CAAs can practice nearby
CAAs can also practice in 4 of Missouri's 8 neighboring states.
CAA Programs in Missouri
3 campuses offer CAA master's training in Missouri.
Kansas City University — Joplin (Farber-McIntire)
Joplin, Missouri
- Degree & Length
- MHS in Anesthesiologist Assistant (MHS-AA) · 28 mo
- CASAA Deadline
- Not yet posted
- Tuition
- $151,179
- Admissions Tests
- GRE (general), MCAT, or DAT required, taken within five years prior to matriculation.
Saint Louis University — St. Louis
St. Louis, Missouri
- Degree & Length
- Master of Medical Science (M.M.S.) in Anesthesiology · 27 mo
- CASAA Deadline
- Not yet posted
- Tuition
- $154,744
- Admissions Tests
- MCAT or GRE required, taken within 3 years of matriculation and submitted by the application deadline; no absolute minimum, but MCAT 501 or GRE 152 Verbal / 155 Quantitative is considered competitive.
University of Missouri–Kansas City — Kansas City
Kansas City, Missouri
- Degree & Length
- Master of Science in Anesthesia (MSA) · 29 mo
- CASAA Deadline
- Jun 1, 2026 (closed)
- Tuition
- $142,552 $161,398 non-res
- Admissions Tests
- MCAT or GRE required (within 3 years of the deadline); no hard minimums, recommended MCAT 494+ or GRE 300+; scores due via CASAA by June 15.
Need to compare required biology, chemistry, and physics coursework across programs?
Open Prerequisites Matrix →Supervision & Practice Authority in Missouri
Supervision Requirements
CAAs work under the medical direction of a supervising anesthesiologist, with a written agreement documenting the delegated services and review procedures. An anesthesiologist may supervise no more than four AAs at once (RSMo 334.400).
State Context & Regulatory Notes
Missouri's act dates to 2003, and a 2008 amendment set the current four-AA supervision limit. Licensure requires graduation from an accredited AA program, passing the NCCAA certifying exam, and keeping certification active. No 2025-26 legislation affecting AA practice appeared.
Statutory Summary
- Legal Authority
- Mo. Rev. Stat. §§ 334.400–334.430 (anesthesiologist assistants)
- Effective
- 2003
- Practice Mechanism
- Licensed