Yes, it is possible to change a health insurance plan during the year, but it typically depends on certain circumstances. Generally, individuals can make changes to their health insurance during the open enrollment period, which occurs once a year when everyone has the opportunity to enroll in or switch plans. However, outside this period, individuals may still be able to change their plans if they qualify for a special enrollment period. Special enrollment periods can be triggered by life events such as marriage, birth of a child, or loss of other coverage. Each insurance provider, including Oxford Health Plans, may have specific guidelines and deadlines for making plan changes, so individuals should review the information available on their website or relevant documentation for the most accurate details.