Over 10 years we help companies reach their financial and branding goals. Engitech is a values-driven technology agency dedicated.



411 University St, Seattle, USA


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Dorene Mac

VP-Revenue Cycle


The billing requirements and challenges a practice faces are often specific to the size and specialty of its providers. This spectrum of business is encompassed within the 34-year career of our Revenue Cycle Manager, Dorene Mack. She worked as a biller in a private practice, then moved on to management positions within a prominent St. Louis-based hospital and one of the region’s leading physical therapy groups. Dorene draws from each of these positions to serve the unique needs of GBS clients. She enjoys taking a hands-on approach as she develops new strategies for the management of billing, personnel, credentialing and accounts receivable, and has demonstrated success in all cases.