For any medical emergency, including paramedic or ambulance service, call 107 from any phone. The operators may not be able to speak English, but all you will need to do is give them the address and your name.
If you need an interpreter in the case of an emergency, you can call the Tourist Police (Comisaría del Turista) at 4346-5748, or toll-free at 0800-999-5000. They can provide translators, and help victims of muggings or robberies.
