Our Team

Philip Yaeger | Executive Director & CEO 

Phil YaegerPhilip Yaeger, who became executive director and CEO of Radiant Health Centers in 2008, has a drive and passion for helping those living with HIV disease. Phil first joined Radiant Health Centers (formerly known as AIDS Services Foundation Orange County) as a volunteer in 1993 and immediately developed an appreciation for the stewardship of its resources and its strong commitment to the community.

Phil then became the organization’s first food pantry coordinator through a grant given by the Elizabeth Taylor Foundation, and later held a number of direct and support service roles—providing him with a 360-degree view of the scope and breadth of the organization’s critical work.

A highly respected authority on the subject of HIV and the importance of education, prevention, and the care of those infected with the disease, Phil is a dedicated and committed leader and an invaluable asset to Radiant Health Centers and the Orange County community.

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


Michael Brewer, Senior Administrative Assistant

Lisa Osborn, Director of Human Resources


Sandra Boodman, LCSW, Chief Program Officer


Medical Case Management

Ben Quan, HepC Patient Navigator

Marie Misity, Lead Nurse Case Manager

Lupe Uribe, Nurse Case Manager

Sharon Petrillo, Nurse Case Manager

Barbara Campos, Nurse Case Manager

Non-Medical Case Management

Wendy Lords, MSW, PhD, Ryan White Services Manager

Martha Gomez, Social Services Manager

Amanda Peraza, Social Services Case Manager Supervisor II

Brigett Tran, Linkage to Care Case Manager Rapid ART Liaison 

Pau Lagarde, Linkage to Care Case Manager

Stephanie Munoz, Service Coordinator

Mariana Aguilera, Client Case Manager Services

Janeyda Cruz, Case Manager Assistant

Rob Natsuhara, Benefits Counselor

James Hernandez, Eligibility Screener

Karen Acosta, ASW, Social Work Case Manager 

Patrick Lovato, ACSW, Social Work Case Manager 

Victoria Aguilar, MSW, Social Work Case Manager 


Susan Caumiant, Chief Development Officer

Ana Martinez, Director of Events and Communication

Joe Alfano, Director of Individual Giving

Su De Rgo, Jr. Salesforce Administrator



Nathaniel Nocum, Interim Chief Financial Officer

Try Nghia, Payroll & Accounts Receivables Supervisor

Samuel Perez, Accounting Assistant


Brandi Tatman, 340B Project Manager

Iris Garcia, 340B Eligibility Coordinator


HIV Testing & Prevention

Adriana Enciso, Health Educator & Outreach Worker 

Manny Muro, Prevention Navigator

Jonatan Gutierrez Urzua, Rapid ART Peer Navigator

Koki Vieto, Harm Reduction Coordinator


Rosa Tavarez, Housing Services Supervisor

David Velazquez, Housing Case Manager

Edward Zavala, Housing Case Manager 


Food Pantry

Olivia Hazell, Registered Dietitian
Brent Wellman, Food Pantry Coordinator

Volunteer Services

Annie Lee, Lead – Support Services 


Reyna Valle, Transportation Coordinator


Dr. Bonnie Bock, Physician
Carolina Leon, Medical Assistant
Matt Lopez, LVN
Dr. Duy Nguyen, Medical Director
Jonathan Ramirez, Clinic Support Services Supervisor
Bryan Rubalcaba, Receptionist
Hernan Santillana, Prevention Navigator
Dave Usman, Nurse Practitioner


Armida Acosta, Psy.D., Director of Mental Health

Alexandra Concepcion, LMFT, Mental Health Counselor

Twyla Garcia-Bagg, MFT, Mental Health Counselor

Georgina Juarez-Lopez, MA, Mental Health Counselor

John Zarate, ACSW, Mental Health Counselor