Board of Directors
Our Board of Directors represent our community population. They guide much of our decision-making, and therefore is comprised of a mix of patients and residents from UHC-Served communities who reflect local demographics.
Jack Shantz, Psy. D.
Board Chair
Sarah Guerra
Vice Chair
Ofelia Garcia
Secretary
Nathan Williams
Treasurer
Daniel Parra
Parliamentarian
Angel Angulo
Board Member
Lorane Avalos
Board Member
Jose Gutierrez
Board Member
Esther Nicacio
Board Member
Nicole Thompson
Board Member
Executive Leadership Team
Colleen Curtis
President & Chief Executive Officer
Justin Preas
Deputy Chief Executive Officer
Ganga Hematillake, M.D.
Chief Medical Officer
David Phillips
Community Development Officer
Beatrice Perez
Clinical Services Officer
Miguel Rodriguez
Chief Operations Officer
Ricardo Viveros
Business Development Officer
Jesus Maldonado
Chief Financial Officer
Raul Venegas
Chief Information Officer
Senior Leadership Team
Gregory Williams, M.D.
Associate Medical Director
Sonia Relingo, D.D.S.
Associate Dental Director
Nathan Boyd, D.D.S.
Associate Dental Director
Stephanie Phyo, O.D.
Director of Optometry
Sylvia Ramirez, Psy.D.
Director of Behavioral Health
Eliane Saed, R.N.
Director of Clinical Services
Alyssa Tapia-Ramirez
Director of Dental Operations
Hyman Tageldin
Director of Information Technology
Jonathon Anderson
Director of Health Information Technology
Stuart Bispham
Director of Data and Analytics
Michael Green
Director of Human Resources
Choua Xiong-Fajardo
Director of Finance
Mary Lou Lopez
Director of Revenue Cycle
Jasdeep Sihota
Director of Operations
David Marquardt
Director of Operations
Blake Carpenter
Director of Central Operations
Navjot Singh
Director of Managed Care and Contracting
Sara Santillan
Director of Quality Improvement
George Chatyrka
Director of HRSA Compliance/Grant Management
Kevin Love
Director of Facilities