Cuba’s military dictatorship sent Ramona Matos Rodriguez to Brazil in September 2013 as part of its foreign “medical missions.” Posted to the Amazonian state of Pará, Dr. Matos Rodriguez was to be paid by Brazil for her services. But she says she received only about 10% of the salary Brazil allocated.

In a 2018 class-action lawsuit filed in federal court in Miami, Dr. Matos Rodriguez and three other Cuban doctors claim that 85% of the money went to Havana via the Pan American Health Organization, or PAHO, which acted as the...