About Healthentic

Diagnose & Prescribe Enterprise Population Health

Our Team

Meet our leadership team.

Jeff O’Mara President & CEO

Jeff brings a data-driven campaign approach to Healthentic’s product, business operations, and Go-to-Market strategy. Previously, he has worked to deliver high impact results for the Fortune 50, start-ups, politics, and policy at Microsoft, in Silicon Valley, and the U.S. Congress. When he’s not spending time with his family, Jeff balances a love for food and wine with a CrossFit addiction.

Sean Gallivan Chief Operating Officer

Sean makes sure Healthentic is a well-tuned machine, improving the lives of others through population health measurement. He realized his passion for turning data into insights in 2009 when he co-founded Healthentic. Sean brings experience in business intelligence, hospital supply chain management, and the health care division of Thomson Reuters. Sean is a true adventure seeker.

Brenda Choy Head of Engineering

Brenda drives our engineering processes and best practices with years of experience implementing mission-critical systems across multiple industries. While her title is Director of Engineering, she truly is the “Chief Efficiency Officer” at Healthentic. Brenda holds degrees from Brown University and the Massachusetts Institute of Technology. She enjoys playing piano and creating beautiful, intricate origami for herself and family.

Joyce Postlewait Head of Strategic Accounts

Joyce leads oral health reporting and analytics at Healthentic. With her background in the health and benefits industry, she brings with her a wealth of experience to Healthentic. Joyce has done benefits underwriting, consulting, and later served as a large group strategic account executive. She now brings all of this experience together in her role at Healthentic. Joyce loves to spend the fall visiting the gulf coast of Florida with her family. She serves as the Postlewait family meteorologist and enjoys bird watching at her family home in Colorado.

Marcela Shannon Head of Human Resources

Marcela is the Head of Human Resources and in her “spare” time serves as a Manager of Customer Success. She has experience in home health care, medical staffing, and wellness services. Marcela received her MBA from Gonzaga University and her Masters in Industrial and Organizational Psychology from Seattle Pacific University. Marcela likes to travel, taste wine, enjoy great food, and squeeze in a round of golf with her family.