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. Author manuscript; available in PMC: 2015 Sep 17.
Published in final edited form as: Am J Health Econ. 2015 Feb 11;1(1):1–26. doi: 10.1162/AJHE_a_00001

TABLE 6.

Mean number of providers seen in 2011 by number of HCCs

No. of HCCs Subjects Mean no. of providers SD Min Max
0 1,642,618 3.50 3.74 0 90
1 1,091,932 5.38 4.48 0 101
2 633,884 6.74 5.33 0 104
3 346,879 8.00 6.18 0 101
4 406,325 10.55 8.31 0 225

Source: 20% sample of 2011 Medicare claims sample and the Carrier file. Providers include MDs, DOs, and RNs billing independently other than radiologists, anesthesiologists, and pathologists as identified from the provider specialty variable on the Carrier file. All differences are significant at the 0.0001 level.