Coordination of benefits (COB) jobs focus on helping an insurance provider determine the respective payment responsibilities of each person involved in a plan. In this field, you may examine claims and compare then to a health plan or policy, use analysis techniques to determine which claims require additional scrutiny, and coordinate with other providers when someone has more than one policy. You may also help investigate suspicious claims and ensure the everyone follows the correct process for submitting paperwork and providing information to patients and healthcare providers. Professionals in COB jobs frequently communicate with patients, provide information about payment and subsidies, and use phone or email to contact caregivers or other insurance companies as needed.