Which type of insurance companies handle claims for physicians and other providers under Medicare?

The correct answer is that carriers handle claims for physicians and other providers under Medicare. Carriers are specific insurance companies or entities that process claims for services provided by medical professionals and facilities in Medicare. They are responsible for determining payment based on the coverage provided under Medicare Part B, which includes outpatient services and necessary medical supplies. This includes processing the claims submitted by physicians and managing the reimbursements to ensure providers are paid for their services.

Carriers are distinct in that they focus primarily on certain types of services, while other entities like intermediaries specialize in different aspects of Medicare claims, often focusing on institutional providers rather than individual physicians. Medicare Administrative Contractors (MACs), while involved in processing claims, encompass a broader role that includes both carriers and intermediaries since they manage claims across both Part A and Part B, but the term "carriers" specifically designates those focusing on physician claims. Quality Improvement Organizations do not handle claims but instead focus on improving the quality of care in the healthcare system.

Understanding the role of carriers in the Medicare system is essential for anyone working with Medicare beneficiaries, as it clarifies how claims are processed and how providers can navigate reimbursements efficiently.