Final answer:
No, not all of a physician's income is derived from insurance payments. In the United States, physicians are commonly paid on a fee-for-service basis, but there are also alternative models like health maintenance organizations (HMOs). Today, many doctors are paid with a combination of managed care and fee-for-service.
Step-by-step explanation:
No, not all of a physician's income is derived from insurance payments received for services rendered. In the United States, physicians are commonly paid on a fee-for-service basis, where they receive fees for each service they perform. However, the structure of healthcare provision has shifted in recent years to include alternative models such as health maintenance organizations (HMOs), where physicians receive reimbursement based on the number of patients they handle. Today, many doctors are paid with a combination of managed care and fee-for-service, which includes a flat amount per patient and additional payments for the treatment of certain health conditions.