Marissa Thelen

Marissa Thelen is currently working as an Insurance Verification & Authorization at Infusion Associates since July 2023. Prior to this, Marissa held the position of Financial Counselor at Annexus Health from May 2022 to June 2023. With a background in oncology account management and claims specialist roles at McLaren Greater Lansing and Meritain Health respectively, Marissa also has experience as a pharmacy technician at Meijer. Marissa holds a degree in Medical Billing and Coding from Purdue Global and a Bachelor of Applied Science in Health Information/Medical Records Technology/Technician from Davenport University.