... Texas Gator is correct, however post COVID, everything is moving at a molasses pace, so DO sign up for your Medicare Part A ONLY, 60-90 days before your 65th birthday month so that you have an assigned SS NUMBER, and you will be ready to retire and switch from Corp to Medicare health coverage when you want and will ask to turn on Parts B & D premium within 62 days of ending your Corp coverage. Have had TWO clients pay extra months private premiums because Medicare took over 9 weeks to return the client calls after starting online and getting assigned a “representative”.... just FYI
...ymmv
Good advice. I was planning to do it ASAP.