Planetree Alliance

Planetree is a nonprofit patient-centered care organization of hospitals and other health care organizations founded in 1978. Now headquartered in Derby, Connecticut, in the United States, the organization was founded by Angelica Thieriot in San Francisco after her frustration of impersonal treatment as a patient.

The group is named after the sycamore, or plane tree, that Hippocrates sat under when he taught medicine.

Planetree also includes member hospitals in Brazil, Japan, Netherlands and Canada.

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