Medical Manufacturing, Economic Development, and Sustainability Act of 2021 or the MMEDS Act of 2021 This bill provides incentives for relocating medical manufacturing facilities in the United States and for manufacturing medical products (i.e., drugs and devices) in economically distressed zones. Specifically, the bill allows a income tax credit for 40% of the sum of wages paid in a medical manufacturing economically distressed zone, employee fringe benefit expenses, and depreciation and amortization allowances with respect to qualified medical manufacturing facility property, and a credit for economically distressed zone products and services acquired by domestic medical manufacturers. The bill increases the credit rate for minority businesses.