In the August 2013 “Policy Matters,” we described the importance and challenges of workforce analysis and provided physician workforce data from the American Medical Association (AMA) and the National Plan and Provider Enumeration System, with the assurance of more data to follow in the future. In this “Policy Matters,” we examine 10-year trends (2003-12) in the supply of anesthesiologists based on AMA data.

We focus our analysis on the number of anesthesiologists in the 50 U.S. states and the District of Columbia involved in “patient care” activity, rather than those primarily involved in administrative activities, medical education, medical research or other activities. In 2012, there were 45,357 anesthesiologists (98 percent of all anesthesiologists) involved in patient care activity. Anesthesiologists represented 5.8 percent of all physicians in patient care activity in 2012.

Exhibit 1 presents the number and growth...

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