Figure 1.

Percent of providers included in any Medicare Advantage network by specialty type. Notes: Each bar represents the percentage of providers that see any Traditional Medicare enrollee based on carrier claims that are included in at least one MA network. Provider specialties are defined by taxonomy codes. Mental and Behavioral includes providers such as counselors, psychologists, and social workers and does not include psychiatrists. Primary Care includes geriatricians. Pediatricians and pediatric specialists are excluded from each classification. Providers include individual MDs, NPs, PA’s, psychologists, and others who are required to register for an NPI.