MHK (also known as MedHOK) is a company that develops care and member management software. It offers MHK CareProminence, a member-centric platform for pharmacy, care, population health, and quality management; and MHK MarketProminence, a Medicare member management platform for medical billing, enrolment, member maintenance, and financial reconciliation. The company serves government, commercial, pharmacy benefit managers, and managed care organizations.