Cheaper to mail. One drawback with textured stock, photographs do not look as impressive. I use postcards for that purpose. More on that technique in a later email newsletter. A large headline should announce your practice name and location.
People look for convenience first.
Identify where you are and you win the location game. Differentiation is a key to marketing success. Be proud of your name, your degree, use it to your advantage, but consider the lack of differentiation it offers. D.M.D. I list both in the yellow pages. On the web, search engines should find both your name and your practice name.