The Patient Master Identity Registry (PMIR) Profile supports the creating, updating and deprecating of patient master identity information about a subject of care, as well as subscribing to these changes, using the HL7 FHIR standard and its RESTful transactions. In PMIR, “patient identity” information includes all information found in the FHIR Patient Resource such as identifier, name, phone, gender, birth date, address, marital status, photo, others to contact, preference for language, general practitioner, and links to other instances of identities. The “patient master identity” is a dominant identity managed centrally among many participating organizations (a.k.a., “Golden Patient Identity”).