That's a sailor's perspective on PR healthcare. Since I'm not part of their health care system I looked at it as is it worth it here or do I sail 6 hours to DR. Antibiotics there are 50cents.
Also, it does not appear on Wikipedia's list of sovereign states.
Puerto Rico has it's own Olympic team. Which is sort of a basis for considering PR as a country.
This has advantages and disadvantages... there's no tax, but also no Senators or congresspeople who give a hoot. Sometimes congressional delegations from places with big Puerto Rican populations will push for policy to secure votes on the mainland.
Also remember that it's a colony, and it's standing is colored by the baggage of colonialism, and there is a split between people who favor that status quo, statehood and independence.
Statehood will never happen unless there is a Democratic supermajority in the Senate.
According to the article, finding specialists in certain medical fields is apparently beginning to become a problem.