Sheila Callesis

Sheila Callesis is an experienced Managed Care Director with over a decade of expertise in the healthcare sector. Currently serving at Zotec Partners since September 2011, Sheila specializes in managed care contracting. Prior to this role, Sheila held a similar position at Medical Business Service from May 2002 to September 2011, where responsibilities included managing care contracting for over 300 hospital-based radiology and pathology physicians and maintaining credentialing files.