Marissa Irwin

Revenue Management Administrator

Marissa Irwin currently serves as the Revenue Management Administrator at NMA (Neuromonitoring Associates) since April 2025. Previously, Marissa held various roles at SpecialtyCare from March 2016 to April 2025, including Revenue Mgmt Supervisor and IONM Client Billing Specialist, where responsibilities included data analysis, billing concerns, and account audits. Marissa also has a strong background in accounts receivable, having worked as an AR Specialist at multiple organizations, such as Rocky Mountain Cancer Centers and ProNerve, LLC, where significant achievements included increasing collections and improving billing processes. Marissa's experience encompasses legal transcription, account management, and identity management coordination, complemented by a Bachelor of Science in Criminal Justice/Law Enforcement Administration from Colorado State University Global.

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