From the Social Security Administration:
Although our offices are closed to the public for in-person services, we are taking steps to serve you and your clients during the Coronavirus Disease (COVID-19) pandemic. Your clients who already have Medicare Part A (hospital insurance) but need to sign up for Medicare Part B (medical insurance) can now submit their completed Form CMS-40B, Application for Enrollment in Medicare Part B (Medical Insurance) to us by:I'm almot certain that this fax number is solely for Medicare Part B enrollments. Let's hope it's monitored regularly and that, if it's a paper fax, that they keep it loaded with paper. Social Security needs to switch to e-faxes. That's a change that the rest of the world has made or is making.
Your clients can get Form CMS-40B at www.cms.gov/Medicare/CMS-Forms/CMS-Forms/CMS-Forms-Items/CMS017339. ...
- Fax at 1-833-914-2016; or
- Mail to their local Social Security office. You can find the local office’s mailing address by using the Locate An Office by Zip button at www.ssa.gov/locator.