Bar chart showing the enrollment data for top health care sharing ministries in the United States. Christian Healthcare Ministries has the highest enrollment at 476,828. Medi-Share is second with 408,793 enrolled. Samaritan Ministries is third with 349,408 enrolled. Liberty HealthShare has 60,858 enrolled. Zion HealthShare has 51,185 enrolled. Sedera has 35,447.