Is it expensive for parents to see a doctor in America without a green card?

Expensive. It is expensive for parents to see a doctor in the United States without a green card, because a green card is equivalent to medical insurance and there is no reimbursement, so it is expensive. The capital of the United States, Washington. Located in central North America, it borders Canada in the north, the Gulf of Mexico in the south, the Pacific Ocean in the west and the Atlantic Ocean in the east. Most areas have a continental climate, while the south has a subtropical climate. The terrain is generally high in the west and low in the east, rich in natural resources, and the total proven reserves of mineral resources rank first in the world.