Chief Executive Officer
Bert has 30 years of experience as a leader in health care and social impact organizations— planning, financing, developing, operating,
expanding, and transforming the practices as well as facilitating consensus and fostering collaboration to achieve goals on community,
national and global levels. He has deep understanding of population health, integrated health care delivery systems and value-based
payment models. His leadership in the technology sector was instrumental in forming the development of IT security solutions now used by
more than 70% of large enterprises worldwide.
Blake J. Williamson, MD, MS, FACPE
HealthTeamWorks Collaborative Partner
Blake brings more than 20 years of leadership experience managing teams in integrated health systems, managed care organizations,
physician practices, and health care consulting. During his nine years as an executive at Blue Cross Blue Shield of Kansas City, he launched
the health plan’s patient-centered medical home project and designed the plan’s advanced payment model contracts.
Understanding all sides of the insurance-hospital-physician link, he helps organizations understand and manage the risk of populations and
create the infrastructure to carry employers, health systems and payers successfully into the future.
David Ehrenberger MD
Chief Medical Officer
David has practiced family medicine since 1987, most recently at a Level III NCQA Recognized Medical Home where he worked for 17
years. Before joining HealthTeamWorks as Chief Medical Officer, he served in the role of CMO at Avista Adventist Hospital in Louisville,
Colorado, and as Chief Executive Officer of Integrated Physician Network, a 240 provider Accountable Care Organization.