Marketing advice please!

Hi Folks:

I have operated an ophthalmic equipment service company for the past 4 years. My primary marketing has been by direct mail and faxes to all of the eyecare professionals in my market area. I find that my low response rate to my efforts is a result of not getting my offer through to the decision makers (doctors). For this reason I am considering sending my mail piece directly to the Doctors home address.

Am I going to make a bunch of Docs mad at me because I located their home addresses and invaded their privacy in this manner?

Any thoughts would be appreciated.

Thank you,
J. Allan