The taxi will be more than glad to take American Dollars. The exchange is around 34 Pesos to the Dollar right now, subject to immediate change. The taxi rate will be about $US15 for 500 Pesos. However, a word to the wise, expect the operators to be asking $US25 - $US50. Regards, PJT
P.S. made two calls about rates. Beron Taxi (809) 552-1013, a local taxi, located at the Beron Crossroads, more or less halfway distance between the resort and the airport quotes a tariff of 300 Pesos. Siutratural, the tourist taxi sindicate, (809) 221-2741, has taxis stationed at the airport, their rate is $US22 or 616 pesos (1/28 exchange rate) for up to 5 persons. It is your choice.