Our Team
Radiant’s Clinical Provider Team
Radiant Health Centers’ provider team brings together caring professionals from our medical, behavioral health, and social services programs to support each patient as a whole person. Our medical team focuses on keeping patients healthy and managing ongoing care, including specialized HIV services. Our behavioral health team provides a safe, supportive space for mental and emotional wellness, while our social services team helps connect patients to everyday essentials like housing, food, and community resources. Together, they share a simple but powerful goal: to meet people where they are and walk alongside them on their health journey. By working as one team, they help reduce barriers, build trust, and create better, lasting outcomes for every patient we serve.
Employees & Departments
Radiant Health Centers staff are highly committed, professional and caring individuals who have served the agency for a number of years. Many staff members are bilingual and speak fluent Spanish. To speak with a staff member, you may contact us by email or by calling (949) 809-5700
ADMINISTRATION
Mark Gonzales, Interim Chief Executive Officer
Danielle Nagao, Chief Financial Officer
Michael Brewer, Senior Administrative Assistant
Lisa Osborn, Director of Human Resources
PROGRAMS
Wendy Lords, Integrated Services and Transformation Manager
Support Services
Sandra Espinoza, Benefits Counselor
Eduardo Rosas, Eligibility Coordinator
Food Pantry
Brent Wellman, Food Pantry Coordinator
Olivia Hazell, Registered Dietitian
Transportation
Reyna Valle, Transportation
Volunteer Services
Annie Lee, Support Services Lead
CASE MANAGEMENT
Medical Case Management
Lupe Uribe, Nurse Case Manager
Barbara Campos, Nurse Case Manager
Christina Davezan, Nursing Supervisor
Kylie Padilla, Clinical Nurse Case Manager
Kelly Paulson, Nurse Case Manager
Non-Medical Case Management
Wendy Lords, MSW, PhD, Ryan White Services Manager
Edgar Alcantar, Case Manager Assistant
Social Services Case Management
Rousana Ansari, Social Work Case Manager
Jessica Perez, Social Work Case Manager
Social Services Non-Medical Case Management
Edgar Alcantar, Service Coordinator
Monica Martinez-Alfaro, Service Coordinator
Melissa Perez, Client Support Services
Ricky Rodriguez, Linkage to Care
DEVELOPMENT
Edwin Rivera-Cortez, Chief Development Officer
Jen Moser, Director of Special Events and Corporate Relations
Su De Rego, Junior Salesforce Administrator
Michael Lara, Grants Manager and Individual Giving Specialist
Joel Rahmatulla, Director of Marketing, Communications & Public Policy
FINANCE / OPERATIONS
Finance
Nemmy Matiru, Controller
Anh Truong, Senior Accountant
Tammy Vu, Accounting Assistant
Operations
Luis Palacios, Director of Operations
Brandi Tatman, 340B Project Manager
OUTREACH & PUBLIC HEALTH
Omar Galindo, Community Health Outreach Worker
HOUSING & BENEFITS
Tanicka Stephens, Director of Housing Services
Rosa Tavarez, Senior Housing Services Case Manager
Bridgette Escobedo, Housing Case Manager
Edward Zavala, Housing Case Manager
Paul Kim, CalAIM Housing Navigator
MEDICAL CLINIC
Dr. Tulika Singh, M.D., Medical Director
Dr. Duy Nguyen, D.O., Staff Physician
Robert Fontanilla, PA-C, Physician Assistant
Thao Ho, N.P., Nurse Practitioner
L. Tom Lochner, M.D., Staff Physician
Claudio Varga, Clinic Manager
Arianna Grow, Medical Assistant
Francisco Valle, Medical Assistant
Lesley Velasco, Medical Assistant
Mireya Paz, Patient Service Representative Lead
Jonathan Hernandez, Patient Service Representative Lead
Edaniell Sanchez, Referral Coordinator
Omar Galindo, PrEP Navigator
BEHAVIORAL HEALTH
Alexandra Concepcion, LMFT, Associate Director of Behavioral Health
Toni Collard, LMFT, Behavioral Health Counselor
John Zarate, ACSW, Behavioral Health Counselor
