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Tammy Mathis possesses extensive experience in the medical billing and accounts receivable management field, with a focus on gastroenterology and related specialties. As RCM Manager of AR Management at Gastro Health since September 2019, Tammy has led various roles including Biologics Insurance Collections Specialist and Biologics and Interventional Radiology Collections Lead, demonstrating strengths in claims follow-up and medical necessity validation. Previous positions include Medical Accounts Receivable Lead at Puget Sound Gastroenterology and Owner/CEO of Evergreen State Medical Billing Solutions, where Tammy managed comprehensive billing processes, audits, and financial reporting. Additional roles span multiple healthcare organizations, showcasing expertise in payment processing, troubleshooting claim issues, and facilitating communication among healthcare providers and insurance companies. Tammy completed training at Allied Medical School between 2009 and 2010.