How many anesthesiologists are there in the US? 

 There are 42,264 total active anesthesiologists in the country, according to the Association of American Medical College's "2022 Physician Specialty Data Report."

The report is based on data from the American Medical Association, the U.S. Census Bureau, and a national resident database and tracking system. Overall, it covers about 950,000 physicians and physicians-in-training among 48 of the largest specialties in 2021, according to a Jan. 12 AAMC news release. 

Here are three more stats on the anesthesiologist workforce: 

1. 39,195 anesthesiologists specialize in patient care, 531 in teaching and 178 in research. 
2. 31,188 anesthesiologists (73.9 percent) are men and 11,032 (26.1 percent) are women. 
3. There are 7,727 people per active anesthesiologist.