Either can be used; the second is more formal sounding. Please be aware that 'Director of Health' is not a universally recognized title, either. It sounds like a government job, though.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
studentmdlwhat is the office called where director of health works?In India, we use the word: Directorate of Medical & Health Services (DM & HS )