A BE/BC Endocrinologist opportunity in O'Fallon, IL offers a flexible 4- or 5-day workweek with no hospital call, competitive salary ranging from $295K to $352K, and comprehensive benefits including student loan repayment and relocation assistance. The role is part of a multispecialty care team with a strong referral network and a family-friendly community near St. Louis. Additional incentives include a 2-year salary guarantee, sign-on bonus, generous vacation, and CME support.