BOSTON--(BUSINESS WIRE)--June 23, 2005-- Spending a day with 600 doctors plus “a voice mailbox full of ideas” Alan Lotvin, MD has been appointed president and chief operating officer of M|C Communications, LLC, the leading U.S. provider of continuing education for physicians and other healthcare professionals, the Boston-based company announced today. M|C Communications produces the Pri-Med network of more than 140 medical conferences in 70 cities across the country, Pri-Med Online, an informational and educational website exclusively for physicians, and clinical reference publications focused on primary care.