Tuesday, 27 January 2004 MD to little Oscar & Emmy Why do Jennifer Connelly and "Sopranos" star Michael Imperioli rave about their children's pediatrician in "The New Basics: A-to-Z Baby & Child Care for the Modern Parent"? The answer was obvious at the Tribeca party for Dr. Michel Cohen, attended by hundreds and hundreds of parents and kids on Saturday, including Tru-Tru pocketbook designer Karen Sachs. Dr. Cohen lived for years with his own children and painter wife behind his office, which he'd open late at night for sick kids. The ex-pat Frenchman can often be seen tooling around downtown on his bike or blades as he makes - brace yourself - housecalls! His don't-worry manner on visits "allays fears" Connelly says.