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



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

Neha Vaid, Nurse Case Manager 

Non-Medical Case Management

Wendy Lords, MSW, PhD, Ryan White 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

Janeyda Cruz, Eligibility Screener

Rob Natsuhara, Benefits Counselor

Tanisha White, Social Work Case Manager 

Edgar Alcantar, Case Manager Assistant 


Joe Alfano, Chief Development Officer

Ana Martinez, Director of Events and Communication

Su De Rgo, Jr. Salesforce Administrator



Anh Truong, Senior Accountant

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, PreP Navigator 

Miguel Barragan, PreP Navigator

Koki Vieto, Harm Reduction Coordinator


Rosa Tavarez, Housing Services Supervisor

Bridgette Escobedo, 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. Duy Nguyen, Medical Director

Carolina Leon, Medical Assistant

Matt Lopez, LVN

Michelle Sherman, Advanced Practice Pharmacist

Dave Usman, Nurse Practitioner

Tobias Brown, Nurse Practitioner

Adriana Herrera, Receptionist


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

Alexandra Concepcion, LMFT, Clinical Supervisor

Toni Collard, Mental Health Counselor

Georgina Juarez-Lopez, MA, Mental Health Counselor

John Zarate, ACSW, Mental Health Counselor