Dr. Jack McCallum

Chairman & CEO

Dr. Jack McCallum is IntegerHealth's CEO, and he also serves as the Chairman of its Board. Jack worked as a practicing adult and pediatric neurosurgeon for over twenty-five years, building the premier specialty practice in his area. Prior to founding IntegerHealth, he was a founder of Integration Health Management Associates (IHMA), one of the earliest firms using data driven evaluation of physician performance. Jack then incorporated IHMA's technology into North Texas Specialty Physicians, an independent practice association that has grown to more than 600 members with its own health plan, and which markets its data driven quality programs nationally. Jack was also a founding member of Leprechaun, LLC, a company that used claims data to assure proper reimbursement for Medicare Advantage plans. Started in 2005, Leprechaun was sold to a private investment firm three years later. In 2009, Jack founded CenseoHealth, LLC, a company that provides in-home health risk assessments for Medicare Advantage plans. Censeo physicians perform 500,000 in-home exams annually throughout the United States. Jack is also an author and educator, holding a doctorate in history and a teaching appointment at Texas Christian University (TCU), and he has spoken at numerous professional meetings and authored several articles and books. He holds a Bachelor of Science from Georgia Tech, an MD from Emory University, and a PhD in History from TCU.

Scott Roloff


Scott Roloff is IntegerHealth's President, and he also serves on its Board. Scott is both a CPA and a lawyer, as well as a Certified Management Accountant (CMA), Certified Internal Auditor (CIA), and Chartered Global Management Accountant (CGMA). Prior to joining IntegerHealth as one of its co-founders, he was the CFO or the General Counsel for companies in the healthcare, software and telecom industries. During this time he also led a wireless technology start-up in the Caribbean for tourists who were otherwise unable to use their cell phones while on vacation. Prior to going into industry, Scott was a Corporate Partner at the international law firm of Akin Gump Strauss Hauer & Feld where he focused on M&A, SEC and general corporate matters. Scott uniquely blends financial, legal and operational experience. He holds a BBA in Accounting from the University of Wisconsin–Whitewater, an MBA from the University of Texas at Arlington, and a J.D. from Southern Methodist University (SMU), where he was the valedictorian of his law school class.

William McCallum

Chief Information Officer

William McCallum is IntegerHealth's Chief Information Officer, and he also serves on its Board. Bill has over twenty years of experience in healthcare, focusing primarily on the development and manipulation of clinical and operational data. Bill possesses a unique ability to bridge information technology with clinical understanding. He has developed a number of healthcare business intelligence capabilities where discrete data from practice management and electronic medical record systems download into a proprietary "Data Model" and "Data Cube," supporting operations and clinical improvement with ongoing monitoring across multiple data feeds. Prior to joining IntegerHealth as one of its co-founders, Bill was the CEO of Integration Concepts, a founding member of Leprechaun, and the CEO of Accountable Analytics. He holds a BSEE from Texas Tech University, and a patent on Merging Disparate Data in Health Care.

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