Start with your employer’s policy and use only approved systems for patient...

https://oscar-wiki.win/index.php/How_do_I_organise_my_phone_so_I_don%27t_mix_work_and_entertainment%3F

Start with your employer’s policy and use only approved systems for patient information. Turn off lock-screen previews, set clear on-call alerts, and check the recipient and account before you share. Keep personal messages on your personal phone.