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.
Part B costs Some people automatically get Medicare Part B (Medical Insurance), and some people need to sign up for Part B. Learn how and when you can sign up for Part B. If you don't sign up for Part B when you're first eligible, you may have to pay a late enrollment penalty.