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.
How to Sign up for Medicare Part B. Medicare Part B is a supplement to Medicare Part A that covers part of your expenses related to doctor visits, home care, medical equipment, and other items not covered by Part A. Part B is often used as replacement coverage after health coverage through an employer or spouse is lost.