Most injectable oncology drugs are characterized as “physician-administered drugs” and are reimbursed under the medical benefit—as opposed to the pharmacy benefit—in many insurance plans. Under Medicare, these drugs are also known as “Part B” drugs, as they are covered by the Medicare Part B benefit, which pays for certain doctors' services, outpatient care, medical supplies, and preventive services. When providing chemotherapy as a service under Part B Medicare, physicians purchase the drugs, manage inventory, administer drugs in-office, and submit claims to Medicare and Medigap insurers for reimbursement of the drug and certain associated administrative costs, such as copay collections. This process is commonly termed “buy and bill.”
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