Q: I would like to know what is the result of those policies. Is it known how many of them are now working in the US healthcare system?
The policy was put into place in 2006 by President G. W. Bush and was ended in 2017 by President Obama. The policy was not just for doctors, but included, broadly, medical personnel. There appears to be no breakdown of doctors versus other personnel.
Due to the difficulty of qualifying for a medical license in the U.S., some medical professionals admitted under the program don't actually work in their specialty, if at all, as a doctor.
How many Cuban doctors are working in the US?, under the policy, is indeterminable, but is likely less than 3500 due to the inclusion of other medical personnel in the totals and the 50 percent rate of placement in residencies.
Cuban Medical Professional Parole program
In August 2006 the United States under George W. Bush created the Cuban Medical Professional Parole program, specifically targeting Cuban medical personnel and encouraging them to defect while working outside Cuba. From an estimated 40,000 eligible medical personnel, over 1000 had entered the United States under the program by October 2007, according to the chief of staff for U.S. Rep. Lincoln Díaz-Balart. By 2017, more than 7000 had entered the program. [...]] On 12 January 2017, President Obama announced the end of the program, [...].
Many Cuban doctors find sanctuary in the U.S., far fewer ever practice again, March 24, 2016
Statistics show how difficult it can be for many foreign medical graduates to meet the U.S. requirements to practice medicine. About 94 percent of U.S. medical school grads were placed in residencies in 2015. But the total percentage of graduates of overseas medical schools placed in U.S. residencies hovers just around 50 percent.