Former adviser to the president for health policy explains why he was wrong about how the change in the delivery of health care would, and should, happen: “I believed then that the consolidation of doctors into larger physician groups was inevitable and desirable under the ACA. . . . I still believe that organizing medicine into networks that can share information, coordinate care for patients and manage risk is critical for delivering higher-quality care, generating cost savings and improving the experience for patients. What I know now, though, is that having every provider in health care “owned” by a single organization is more likely to be a barrier to better care.”

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