Andrew Kearse Accountability for Denial of Medical Care Act of 2021 This bill establishes a new federal criminal offense for failing to obtain medical attention for an individual in federal custody who displays medical distress. Specifically, the bill requires federal law enforcement officers and the Bureau of Prisons' personnel to provide or obtain immediate medical attention for an individual in federal custody who displays medical distress. It criminalizes the negligent failure to obtain or provide such medical attention that results in unnecessary pain, injury, or death. A violator is subject to criminal penalties—a fine, a prison term of up to one year, or both.