I find that an acrylic shield that I put on like a pair of glasses but which protects my whole face are also useful these days. They're cheap. They come in multi-packs but I've been using the same one for at least a month.
As someone said here earlier we need to think of a stack of slices of swiss cheese. There are weaknesses in each level of our protection but if we employ as many as possible -- distance, hand washing, protective gear -- and keep company with people who do as well, the flaws or holes in the stack are less likely to line up and provide the route to transmission.
I'm surprised that your doctor's office isn't using them for close contact. The guys in my husband's office that need to be in close contact are fitted out in full PPE with respirators and I'm always proud to say how well they've done. Since Aug when they geared up to work again they've done 7K tests and had 8 positives. NONE transmitted within their bubble. It can be done if people take the proper precautions and people in his bubble are as vigilant outside of work as they are within!