Pulmonary function testing has come into widespread use since the 1970s. This has been facilitated by several developments. Because of miniaturization and advances in computer technology, microprocessor devices have become portable and automated with fewer moving parts.
You will pay Part B premiums as long as you keep the card. Those who are not automatically enrolled in Part B can sign up during their initial Medicare enrollment period which begins three months before their 65th birthday and ends three months after the 65th birthday.
You can sign up for Medicare Parts A & B between January 1 and March 31 each year. Your Medicare coverage would begin on July 1 of the same year. It is important to note that if you need to buy Part A, you must also enroll in Part B at this time.ou can get a Special Enrollment Period to sign up for Part C (must enroll in Parts A & B too): 1  During the 63 days after the employer or union group health plan coverage ends, or when the employment ends (whichever is first).