I've also contacted a few places from medtraffic to see if they spoke English (or Italian, or French)... interestingly their database is quite out of date; as a few of the praxis outright said they don't do these, despite being on the database!
Outdated: because two of the places I called, from medtraffic, said they don't offer this anymore...
Ended up finding one in Zurich, ironically the usual doctor I normally see (medix on bahnhofstrasse). He speaks perfect English, so that makes my life easy!