Why Are California Internal Medicine Practices Seeing More Medicare Advantage Prior Authorization Requests?
Medicare Advantage plans continue to expand across California, bringing both opportunities and administrative challenges for internal medicine practices. One of the most significant changes in 2026 is the growing number of prior authorization requirements for services that previously required little or no payer approval. As a result, physicians are experiencing delayed treatments, slower reimbursements, higher denial rates, and increasing accounts receivable (AR). For busy internal medicine providers managing patients with multiple chronic conditions, every authorization delay can affect patient care and financial performance. Even when services are medically necessary, incomplete documentation, missed authorization requirements, or payer-specific rules can delay payment for weeks or months. This growing complexity has encouraged many providers to partner with specialized Internal Medicine Billing Services , medical billing services , and comprehensive RCM services to improve authori...