Meet Our Staff


  • J. Patrick Haines, Executive Director
  • Albert Chang, MD, Medical Director
  • Chuck Adams, Administrative Director
  • Brigette Lao, RN, MA, Clinical Nurse Manager
  • Stephen Bennett, Senior Manager, Budget & Finance
  • Janet James, Manager of Credentialing, Quality & Compliance
  • Matthew Mallari, Manager of Support Services
  • Marshall Sum, Principal Analyst, Healthcare and Business Analytics
  • Martina Garza, Credentialing & Quality Analyst
  • Lillian Lawrence, Administrative Specialist
  • Tim White, Coordinator, Purchasing & Administration
  • Jennifer Brantley, Administrative Analyst, Budget and Finance
  • Necy Villamin, Personnel and Payroll Analyst


  • Nader Bigdeli, Clinical Laboratory Manager
  • Marilena Pinto, Dental Practice Manager
  • Jean Deakyne, Manager, Front Office & Health Information
  • John Shioya, Pharm.D., Pharmacy Manager
  • Position Currently Vacant, Manager, Billing and Insurance Services
  • Sandy Yang, Supervisor, Insurance Customer Service

General Medical Clinic Providers

  • Albert Chang, MD, (Adolescent Medicine and Pediatrics)
  • George Huang, DO, Lead Physician, Ancillary Services (Family Medicine)
  • Christina Fingal, DO (Family Medicine, Women's Health)
  • Kathleen Gallagher, MD (Family Medicine, Women's Health)
  • Catherine Cummins, MD (Family Medicine)
  • Shirley Contreras, MD (Internal Medicine)
  • Miki Csintalan, MD (Internal Medicine)
  • Henry Tsai, MD (Internal Medicine, Sports Medicine)
  • Hien Ngiem, MD (Family Medicine, Sports Medicine)
  • Shirley Gray, Physician Assistant (General Medicine)
  • Khanh Nguyen, Physician Assistant (General Medicine)
  • Erin Baker, NP (Family Medicine)
  • Beth Haney, NP (Family Medicine)
  • Tina Escobedo, NP (Family Medicine)
  • Bernadette Mulbury, NP (Family Medicine)

Clinical Specialists


  • Melany A. Meier, D.C.

Clinical Social Work

  • Jessica Bychawski, LCSW


  • Lucille Lemus, MD


  • Douglas Nguyen, MD


  • Simon Madorsky, MD


  • Carlos Prietto, MD


  • Vivien Chan, MD, Chief of Psychiatry Services
  • Anthony Mascola , MD


Radiologist services are provided by Radiologists on staff in the Department of Radiological Sciences at UCI Medical Center and on the faculty of the UCI School of Medicine

Women's Health

  • Ellen Fraser, MD (Ob-Gyn)
  • Lilly Ramirez-Boyd, MD (Ob-Gyn)
  • Diane Kennedy, NP

Nutritional Services

  • Jody Margolis, MS, RD

Dental Clinic Provider Staff

  • Kimberly Kaboos, DDS, Associate Dentist (Lead Dentist)
  • Michelle Kuo, DDS, Associate Dentist
  • Corwin Evans, DDS, Periodontist
  • Joyce Fang, DDS, Associate Dentist
  • Phuong Nguyen, DDS, Associate Dentist
  • Paul Nguyen, DDS, Endodontist