The modern Santa Maria di Loreto Mare Hospital, or Loreto Mare Hospital for short, is not the original hospital in this area. There was originally a convent on the site, Santa Maria di Loreto, which was built in 1537. The complex included a garden, the church, and a monastery. It was the monastery that was eventually turned into a hospital in the 19th century. It stood there until it was destroyed by bombings during World War II. If you choose a budget hotel near the Loreto Mare Hospital in Naples, you can see some other interesting sites in the area as well.
Staying in a cheap hotel near the Loreto Mare in Naples means that you are near the ruins of the fortress of Carmine. The Church of the Carmine is still there as well. Also take a walk through the Piazza Mercato and walk down Corso Garibaldi a bit and you will come to a huge chunk of a building on your right. That is what is left of the original hospital.