For Covid testing, this is what I got from our hotel in Civitavecchia:
We collaborate with a diagnostic center that is within walking distance.
Here's the link: www.cdbuonarroti.it
The antigen test costs 15 euros, and the result is within an hour or so.
The molecular test (PCR) costs 60 euros and the result is about 10 hours.
No reservation needed.
Opening hours Monday Saturday 07:30am-07:00pm Sunday 10:00am-12:00pm/05:00pm-07:00pm