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For physician practices across the United States, providing care is just one aspect of running a healthcare business. Behind each patient visit is a complex administrative process that includes insurance verification, prior authorization, coding, claims submission, payment processing, and, when necessary, appeals. According to the 2024 CAQH Index, the administrative work across the U.S. healthcare system costs an estimated $440 billion annually, highlighting the significant resources spent on the administrative processes that support healthcare delivery and payment.
Medical billing involves several steps that must be completed before a practice receives payment. These steps can include verifying a patient’s coverage, determining whether authorization is required, submitting a claim, responding to requests for additional information, and correcting rejected or denied claims. The CAQH estimates that its Index tracks about $90 billion in annual spending on administrative workflows in the medical and dental industries, underscoring the financial scale of these processes.
For physician practices, prior authorization is one particularly time-consuming component of the administrative process. In the American Medical Association's 2024 nationwide survey of 1,000 practicing physicians, respondents reported that their practices completed an average of 43 prior authorization requests per physician each week. The same survey found that physicians and their staff spent approximately 12 hours per week on these requests.
The time required for prior authorization often forces practices to assign personnel specifically to administrative tasks. The AMA survey revealed that 35% of physicians reported employing staff who work exclusively on prior authorization, indicating how insurance-related administrative requirements can lead to dedicated staffing needs.
Claims do not always result in immediate payment. When a claim is denied, healthcare organizations may need to investigate the reason, correct any documentation or coding issues, resubmit the claim, or appeal the payer's decision. The American Hospital Association reported that hospitals spent approximately $18 billion in 2025 to overturn claim denials, while estimating that they spent $43 billion overall trying to collect payments owed by insurers for care already provided.
Claim denials can also affect the time it takes to receive payment after care is provided. According to the AHA's analysis of 2023 data, claims denials by commercial insurers increased by 20.2% in 2023, and the time it took commercial payers to process and pay hospital claims rose by 19.7% that year. Although these figures pertain to hospitals and health systems rather than physician practices specifically, they illustrate the broader payment-cycle pressures prevalent within the healthcare system.
The administrative burden associated with billing and insurance processes can extend beyond financial operations. In the AMA's 2024 physician survey, 94% of physicians reported that prior authorization requirements delayed patients' access to necessary care, while 93% said that prior authorization negatively impacted clinical outcomes. These findings reflect physicians' reported experiences but do not establish that prior authorization causes every individual outcome.
The survey also found that administrative requirements contribute to increased healthcare utilization. Eighty-seven percent of physicians surveyed by the AMA reported that prior authorization leads to higher overall healthcare resource utilization, with 68% noting additional office visits and 42% reporting immediate-care or emergency department visits in connection with prior authorization.
Technology and automation play a crucial role in this conversation. According to the 2024 CAQH Index, the healthcare industry had an estimated $20 billion opportunity to reduce administrative costs by transitioning from manual processes to automated transactions, representing approximately 22% of the costs tracked by the Index. More recent research from CAQH indicates that electronic transactions and improved data exchange are already delivering measurable savings. The 2025 CAQH Index, released in February 2026, estimated that the U.S. healthcare system avoided $258 billion in administrative costs during 2024 thanks to electronic transactions and improvements in data exchange.
These figures suggest that the discussion surrounding medical billing goes beyond the existence of administrative work; it also pertains to how efficiently that work is performed. Electronic eligibility verification, electronic claims, automated payment processes, and other technologies can help reduce some manual administrative tasks. CAQH's 2024 analysis estimated that 22% of the administrative costs it tracks could potentially be saved through greater automation, indicating that technology remains a key area for efficiency improvements.
Ultimately, for physician practices, medical billing is intricately connected to both administrative operations and financial management.