Older teacher-medical English?

I'm interested in the possibility of teaching English for medical purposes. I've been doing volunteer English teaching to Asian immigrants here in New Zealand and really enjoy it; I'm in my mid 50's, a UK qualified radiographer (UK passport holder) with overseas experience and more than ready to leave day-to-day hospital work.
I'm contemplating taking a CELTA course in the next few months, continuing with the voluntary teaching for a year or two, then going back to Europe or maybe to Asia to do a few years EFL teaching. I keep reading that medical English is in increasing demand, and think I would then be ideally placed as far as prior experience goes.
What are the prospects for an older person?
My radiography qualification was not a degree when I did it, but is considered "degree-equivalent" as nowadays it is a degree. Of course it is a science degree, not a BA ...

I'm very interested to hear any and all opinions on this.

Hello liz!

Welcome to EF!

I read your post. I am a non-native speaker of English, working in Japan as an English teacher. I have only 3 years of experience in teaching English and Science. I did my degree (BSc) in Medical Science. Later I studied B.Ed and M.Ed. to become a teacher. In my country our education is in English medium and English is very common in use.
I came to Japan about 2 years ago. My first year of job search was very much frustrating here as I always got a negative answer for not being a native speaker. Anyway, now I am working at a school. After reading your post I was lost in my past days. I don't know if your degree is valid as a degree for your working visa in Japan or not, but if you try your luck here perhaps you can get good chance to teach English here (perhaps medical English too).

Thanks for reading my post

Regards,
Meg

hi
my name is monika and i work for the branch of english school in poland
we also offer the english lessons for the medical sector
please write on my email (Email removed, please add it to your profile)
best regards
monika