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.
The General Enrollment Period (GEP) runs from January 1 to March 31 of each year, and you may add Medicare Part B coverage if you are eligible. If you enroll in Part B during a GEP, it will be effective July 1 of the year in which you apply.o add Medicare Part B, contact the Social Security Administration at 1-800-772-1213 (TTY users 1-800-325-0778), 7AM-7PM, Monday to Friday. For additional information, contact Medicare at 1-800-MEDICARE (TTY users 1-877-486-2048), 24 hours a day, 7 days a week.