Referral Services Medical Services arranged for by the physician and provided outside the physician's office other than Hospital Services.
Registered nurses are responsible for carrying out the physician's instructions.
They supervise practical nurses and other auxiliary personnel who perform routine care and treatment of patients. Registered nurses provide nursing care to patients or perform specialized duties in a variety of settings from hospital and clinics to schools and public health departments. A license to practice nursing is required in all states. The practice of an HMO or insurance company of purchasing insurance from another company to protect itself against part or all the losses incurred in the process of honoring the claims of policy-holders. The fiscal method of providing a fund for committed but undelivered health services or other financial liabilities.