You can enroll in Medicare Part A and/or Medicare Part B in the following ways:
- Online at SocialSecurity.gov.
- By calling Social Security at 1-800-772-1213 (TTY users 1-800-325-0778), Monday through Friday, from 7AM to 7PM.
- In-person at your local Social Security office.
IIf you work for a small employer, this post has some information you might find helpful:
https://totalbenefits.net/ibc-important-changes-regarding-medicare-part-b-exclusion/