$2,500 Sign On Bonus for External Candidates. Reliant Medical Group, part of the Optum family of businesses, is seeking a Registered Nurse to join our team in Worcester, MA. Optum is a clinician-led care organization that is changing the way clinicians work and live. As a member of the Optum Care Delivery team, you’ll be an integral part of our vision to make healthcare better for everyone. At Optum, you’ll have the clinical resources, data and s...