It's one of the requirements established in the law. It's more than a report; it is a certificate of good health. It needs to be issued by a Panamanian doctor. There are plenty of medical centers in Panama where you can get one.
A certificate of good health issued by a local doctor is required by law in order to apply for any type of resident permit. You may obtain this from at any local clinic or hospital, or through our allied doctor who personally assist clients in our office.
Among the general requirements for all residency types, as per article 28 of Law Decree 3 of 2008, is the certificate of good health by any local doctor in Panama. Most immigration lawyers will be able to recommend a local clinic for you to secure that requirement.