Definition: The word "UnitedHealthcare Insurance Company" refers to a large group of companies that offer health insurance plans to their customers. "Phone Number" is a term used in business terms to refer to the specific contact information for a company's customer service department or for a particular contact person within that organization. It is an essential tool for providing customer support and addressing any questions, concerns, or issues related to the company's services, products, policies, etc. In this case, "UnitedHealthcare Insurance Company" is likely referring to a specific health insurance plan offered by United Healthcare, which includes plans such as Blue Cross and Blue Shield of America, Humana, and others. The phone number provided can be used for customer service or to make inquiries about the coverage, benefits, or any other issues related to the company's services.