Retainers for primary care?

Modern Healthcare: On Retainer
Given the financial and regulatory uncertainty engulfing most of the health care industry, retainer-based primary-care medical practices are doing just fine, industry executives say. Executives for these types of practices, which use approaches commonly known as concierge medicine, boutique medicine or direct primary care, say their businesses remain relatively healthy amid weakness in the economy and threatened and actual cuts to federal reimbursement in the works (Barr, 10/24).