This is a personal choice issue. As to the Federal Employee Dental and Vision Benefits Enhancement Act of 2004 are made available to Federal employees, retirees, and their dependents. Generally, plans under the FEHB Program help pay for the same kind of expenses as Medicare. FEHB plans also provide coverage for emergency care outside of the United States which Medicare doesn’t provide. Some FEHB plans also provide coverage for dental and vision care. Medicare covers some orthopedic and prosthetic devices, durable medical equipment, home health care, limited chiropractic services, and some medical supplies, which some FEHB plans may not cover or only partially cover (check your plan brochure for details). If you are entitled to Part A without paying the premiums, you should take it, even if you are still working. This may help cover some of the costs that your FEHB plan may not cover, such as deductibles, coinsurance, and charges that exceed the plan’s allowable charges. There are other advantages to Part A, such as (if you also enroll in Part B,) being eligible to enroll in a Medicare Advantage Plan.