As the doctors instruments are properly sterlized ,you dont need to worry.but,you have to take precautions while waithing for your appointment like wear mask,maintain physical distance.better to carry a small sanitizer with you which you can use after touching doors,knobs ,lift switches and other such things.
Next Steps
wear mask and carry sanitizer with yourself
Health Tips
learn how to wear mask properly by clicking on link http://www.risingkashmir.com/news/how-to-wear-a-mask