I'm in the middle of nowhere, so in my case I would need a smattering. However, almost all doctors can read/write English, even if they can't speak it. I've had 80 year old doctors proudly write down the word rheumatism, where I can barely get by with spellcheck.
In bigger cities, you'll definitely be able to find doctors who can speak English easily.
In bigger cities, you'll definitely be able to find doctors who can speak English easily.