He's a doctor so his medical advice can be helpful.
I came out to him via text message and this was his response.
"Thanks for letting me know <name>. No matter what happens, I will always be there for you and support you 100%. I just want you to be happy and if this is what its going to take to make it happen then I back you 100%. I don't want you to feel weird or anything around me. Feel free to talk to me or reach out to me for any advice. Whether it's for medical advice or anything else. I'm always here with my doors open."