Table 2.

Care transformation strategies pursued by ACOs in sample

Characteristics	N	%
Transforming primary care	24	80%
Prioritization of same- or next-day scheduling	9	30%
Development of 24-hour call lines	8	27%
Expansion of primary care capacity: hiring providers or     inviting additional primary care practices	8	27%
Medical home certification complete or in process	18	60%
Reducing avoidable emergency department (ED) use	21	70%
Provision of alternate sites of care	9	30%
Targeted care management for ED utilizers	18	60%
Located care managers in ED	5	17%
Solidifying and expanding care management	22	73%
Use of centralized nurse call lines	7	23%
Formation of centralized care management teams	9	30%
Addition of new care management staff and roles	15	50%
Introducing or expanding boundary spanner roles	30	100%
Continuation or enhancement of practice-based     boundary spanning	26	87%
Formation of centralized boundary spanning teams	4	13%
Total sample	30

Note: for the higher-level categories, the row indicates the number and percentage of sites implementing at least one of the specific strategies listed below.