Don’t confuse Medicare with Medicaid. Medicare is health care for the elderly, for which social security recipients are eligible for participation at age 65. In theory, Medicare is paid for by payroll contributions, but it is done under the same Ponzi scheme as social security. But I do not believe Medicare recipients have liens placed against their property for participation in the program.
Medicaid is the program of health care for the indigent, where age is not a consideration but income is. If one receives Medicaid, it is under the assumption that they are too poor to afford medical care through their own financial resources. It is under that theory that the government places liens on any property they own.
I am not confusing Medicaid with Medicare, I have been quite explicit on what it is and how it works.