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From the Health Care Financing Administration
December 20, 2000


JAMA. 2000;284(23):2988. doi:10.1001/jama.284.23.2988

Physicians gather a treasure trove of data on care they provide to Medicare beneficiaries. The aggregate information is invaluable and has been the basis for scientific studies published in the Journal of the American Medical Association and elsewhere.

However, such data have not been routinely collected on care provided to the 6 million beneficiaries in Medicare + Choice plans (health maintenance organizations [HMOs] and other private plans under contract with Medicare). That is changing, and physicians need to know why and how it affects them.