Our Mission

The Primary Mission of the Mariposa, Amador, Alpine, Calaveras & Tuolumne Health Board, Inc. is to improve the Health Status of the American Indian and Alaskan Native population. It is through a comprehensive HEALTH CARE SYSTEM, which is designed to Preserve and Promote the Traditional Well Being and Cultural Sensitivity of the Tribal Communities to whom we serve.

The Mariposa Amador, Alpine, Calaveras Tuolumne Health Board, Inc., (MACT) is a consortium of federally recognized and non-federally recognized tribes. MACT provides health care to American Indians, Alaska Natives, as well as other eligible patients in its service area. MACT Health Board operates as a tribal healthcare provider under agreements with the Indian Health Services (IHS), a department of Health and Human Services, pursuant to the Indian Self-Determination and Education Assistance Act (ISDEAA). Health services funded by IHS were originally provided for Native Americans living on the Tuolumne Indian Rancheria through a one-time pilot project funded by a grant from the California Bureau of Maternal and Child Health in 1969. By 1971 Indian people in Tuolumne, Amador, and Calaveras counties petitioned to be added and one health worker was hired in each county. In 1972, the Tuolumne Tribal Council passed a resolution to organize a Health Board and delegate governance to a Board of Directors. The board would be comprised of two delegates from each county. In 1974, the American Indian Council of Mariposa County was added to the organization and Board. The organization received partial funding though federal funds as a sub-contractor of the California Rural Indian Health Board (CRIHB).

In March 2013, MACT, through the Jackson Rancheria Band of Miwok Indians, negotiated directly with IHS to operate healthcare services through ISDEAA, and the organization became a “Title I” self-governance contractor under that law. In March of 2020, The Ione Band of Miwok Indians added a representative to the Advisory Board. In November 2021, Alpine County (with the exception of Markleeville) was assigned to MACT’s Service Area.

MACT currently operates five medical clinics, one specialty clinic, one womens’ health clinic, five dental clinics, two optometry clinics, one pharmacy, and integrated behavioral health services at all sites. The service area of 5,312 square miles is often accessed only through winding two-lane roads throughout the Sierra foothills. Travel from the northernmost clinic to the southernmost clinic takes approximately 2 hours. For many of our patients, MACT is the only option to receive healthcare without traveling outside of our area.