Sí. Está exenta. La asistencia a personas físicas por profesionales médicos o sanitarios está exenta, aunque los profesionales presten los servicios por medio de una entidad o los presten a la misma y ésta, a su vez, facture al destinatario de los servicios.
I had a really urgent problem in the middle of the summer that I needed to get fixed. I tried contacting a bunch of agencies but they were either unavailable, slow, had terrible service or were crazy expensive (one company quoted me 1000€!). Josep replied to me within 10 minutes and managed to submit my forms on the deadline and all for a great price. He saved my life - 100% recommend!