Approved by the Cancer.Net Editorial Board, 04/2015. 1  A biopsy is the removal of a small amount of tissue. It is an important way doctors diagnose many different types of cancer.  The sample removed during the biopsy needs to be processed and analyzed before the doctor can make a diagnosis.
You can sign up for Part A and/or Part B during the General Enrollment Period between January 1âMarch 31 each year if both of these apply: You didn't sign up when you were first eligible. You arenât eligible for a Special Enrollment Period (see below). You must pay premiums for Part A and/or Part B. Your coverage will start July 1.
However, there is an exception. Whether you should enroll in Part B while you are still working depends on whether your employer has more than 20 employees. If your employer has more than 20 employees, you do not need to sign up for Part B right away because your employer's group health plan will be the primary insurer. When you retire, you will have a special enrollment period of eight months to sign up for Part B, without penalty. If your employer has fewer than 20 employees, however, you should enroll in Medicare Part B when you are first eligible.