In most cases, Medicare coverage for DEXA is available under Part B. Doctors may call this test a DXA test. Either way, it’s a way to measure bone loss. These tests are also known as bone densitometry tests.Medigap plans fill the holes of Medicare. Instead of paying high deductibles and 20% coinsurance for every doctor visit for your medical conditions, you can put most of that burden onto the Medigap insurer. Low bone density can lead to broken bones and costly hospital bills.Call a licensed insurance agent at the number above to get started on your Medigap enrollment. Or, fill out an online rate comparison form to view the plans in your area side by side.