Working Past 65
How do I enroll in Medicare Part B after age 65?
If you delayed Part B because you had coverage through current employment, forms CMS-40B and CMS-L564 can help you enroll during your Special Enrollment Period.
By Greg Bass · September 3, 2026If you are past the seven-month enrollment window surrounding your 65th birthday and delayed Medicare Part B because you had health coverage through your or your spouse’s current employment, you may qualify for a Special Enrollment Period.
You will generally need two forms: CMS-40B, the application to enroll in Part B, and CMS-L564, which proves that you had qualifying employer coverage.
You complete Section A of the CMS-L564 and the employer completes Section B.
You can submit the forms online, by fax or mail, or take them to a Social Security office—and if you go in person, I would not go first thing in the morning because all the other old people will already be in line.
Clearly state the month you want Part B to begin, and do not wait too long after the employment or coverage ends because this Special Enrollment Period generally lasts eight months from whichever ends first.
I will be glad to walk you through the entire process; just give me a call.
Does this sound like your situation?
Call Greg for a straightforward conversation about your Medicare timeline and options.
Call (805) 202-6313Source: Social Security: Sign up for Part B only
This general educational information is not individual plan advice. Plan availability and benefits vary by location and contract year.