Board of Directors

The Board of Directors represents 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



Nathan Williams


Daniel Parra


Angel Angulo

Board Member


Lorane Avalos

Board Member

Jose Gutierrez, Board Member

Jose Gutierrez

Board Member

Esther Nicacio

Board Member

Nicole Thompson

Board Member

Irma Cruz

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 Resource Officer

Beatrice Perez, RN

Chief Clinical Services Officer

Miguel Rodriguez

Chief Operations Officer

Ricardo Viveros

Business Development Officer

Jesus Maldonado

Chief Financial Officer

Senior Leadership Team

Gregory Williams, M.D.

Associate Medical Director

Nabil Baig, D.O.

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, RN

Director of Clinical Operations

Gail Espinosa Mora

 Director of Optometry Operations

Alyssa Tapia-Ramirez

Director of Dental Operations

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

Emily Mireles

Director of Central Operations

Navjot Singh

Director of Managed Care and Contracting

Kevin Love

Director of Facilities

Sara Santillan

Director of Quality Improvement

George Chatyrka

Director of HRSA Compliance/Grant Management