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Thomas A. Mason

Portrait of Thomas A. Mason

Dr. Thomas Mason is Chief Medical Officer (CMO) of the Office of the National Coordinator for Health Information Technology (ONC) at the U.S. Department of Health and Human Services (HHS). As CMO he is a health IT and stakeholder ambassador for ONC, routinely meeting with clinicians in the field and advocates across the healthcare industry, focusing on improving health IT usability, reducing clinician burden, and advancing ONC’s mission to improve data use and its availability across the health care spectrum. Working closely with staff at the Centers for Medicare & Medicaid (CMS) and other agencies within HHS, Dr. Mason leads efforts to better understand and address clinical documentation burdens and other administrative burdens relating to the use of electronic health records. Dr. Mason led the development of ONC’s Health IT Playbook, which offers tools, resources, and best practices to help address the challenges of implementing, adopting and optimizing health IT.

Prior to joining ONC, Dr. Mason worked at the Cook Country Health and Hospitals System (CCHHS), the third largest public hospital system in the country. He spent 14 years as a board-certified internist with an emphasis on primary care and preventative medicine and led the charge to implement EHRs across the system. His work at CCHHS allowed specialists and primary care providers to streamline and optimize EHR use, improving clinical workflow and system efficiency. Dr. Mason has brought his experience implementing multiple EHRs to ONC to help the agency better understand the difficulties clinicians experience with health IT and to help facilitate collaboration between the government and the healthcare industry to improve clinicians’ and patients’ engagement with innovative health technologies.

Dr. Mason earned his M.D. from the University of Illinois College of Medicine and completed his residency in Internal Medicine at Rush University Medical Center and Cook County Hospital.

Thomas A. Mason's Latest Blog Posts

ONC Announces $1 Million in Grant Awards to Support Health Information Exchange and Care Coordination Across the Entire Health System

Thomas A. Mason | September 18, 2015

The health ecosystem is comprised of many different inputs that impact health decision making: social, diet and exercise, environmental factors, the economy and the health care system. Within the health care system, which accounts for just 10 percent of health determinants, there are many important contributors from primary care physicians and surgeons, to nursing homes, behavioral health professionals, home health care organizations, public health departments, emergency medical services, social services, and many others.

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ONC Grant Funding Opportunities Help Advance Interoperable Health IT, Leverage Community Best Practices and Train the New Health IT Workforce

Thomas A. Mason | July 28, 2015

The grants will fund community and state-based initiatives that help advance health information sharing, enable community members to work together to improve population health, improve the interoperability of health IT systems and continue efforts to train and nurture the health IT workforce.

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Health IT Holds the Promise to Help Improve Health

Thomas A. Mason | April 30, 2015

Electronic Clinical Measures Point to EHRs Potential to Monitor Blood Pressure Control
About 1 of 3 U.S. adults—67 million people—have high blood pressure, also called hypertension. High blood pressure increases the risk for a variety of diseases, including stroke, coronary artery disease, peripheral vascular disease, heart and kidney failure, and atrial fibrillation. High blood pressure is also called the “silent killer” because it often has no warning signs or symptoms, and many people do not know they have it.

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