Belmont Ronald B. Orr, D.D.S., M.P.H. Periodontics 18 Moore Street, Suite 300 02478 617-484-0475 ronorr@belmontperiodontics.com     Chicopee Dr. Frederic S. Mackler 444 Montgomery Street 01020 413-598-7140 fmackler@compuserve.com http://users.aol.com/wegmacinc/wminc.html     Framingham James S. Cinamon, DMD 223 Walnut Street, Suite 6 01702-7590 508.872.1422 JCinamon@aol.com     Melrose Joel Alper, DMD Periodontics 946 Main Street 02176 781-665-4446 AlperPeriodontic@hotmail.com     Needham   Paul D. Cohen, D.M.D. 234 Chestnut Street 02192 617-444-0038 drpaul@user1.channel1.com     Newton Dr. Robert C. Javer 93 Union Street 02159 617-965-0060 odonto@concentric.net     North Billerica Paul Feuerstein, DMD 76 Treble Cove Road, #4 01862-2232 508-667-6600 drpaul@toothfairy.com     Winthrop Richard A. Schwartz, D.M.D. 313 Main Street 02152 617-846-1112 skiboom@usa1.com