Yes, it is often advisable to consider additional insurance alongside Medicare to cover the gaps in coverage. Medicare typically covers a portion of healthcare costs, but it may not cover all expenses, such as deductibles, copayments, and services not included in the original Medicare plan. Supplemental insurance, also known as Medigap, can help cover these additional costs. Additionally, Medicare Part D provides prescription drug coverage, but it may not cover all medications, so individuals may want to consider a standalone prescription drug plan. Another option is Medicare Advantage (Part C), which provides an alternative way to receive Medicare benefits through private insurance companies. It often includes additional benefits such as vision, dental, and hearing coverage. It's important to carefully evaluate your healthcare needs and consider the potential gaps in coverage to determine if additional insurance is necessary alongside Medicare.