I suppose every doctor and their practice office is different. Make it as easy for them as possible by giving them the dates and which blood tests results (all on one document which Clinica De Freitas will send you) you need. I'm sure you will get them no problem.
Regarding taxis, I heard there is an app called FREE NOW which I believe is a European version of Uber basically. The hotel is only 15 minutes from the clinic, I would much prefer to walk on the way there and stretch my legs, however they say not to exercise for 5 days before surgery ... so I'm not sure 15 mins of calm walking would count 😅