Gynecologic Oncology Institute Team

Meet YOUR Team

Your core cancer-fighting team is here to guide you through every step of the way.  From prevention to diagnosis, through surgery and personally tailored adjuvant therapies and into survivorship and proactive recurrence prevention, we are here for you. The members of this team all have an important role and represent shared resources from Saint John’s Health Center, John Wayne Cancer Institute and practitioners who provide tightly coordinated timely services for your benefit.  Take some time to meet and learn about your team members!

Gynecologic Oncologist

Robotic Surgeon

Integrative Medicine

Physician Assistant

Integrative Mind-Body Specialist

Lisa Chaiken MD

Radiation Oncology




Integrative M.I.S. Fellows

Integrative Medicine

Genetics / Prevention

Nutrition & Dietetics

John Jalas MD


Dave S. Hoon MSc PhD

Molecular Oncology


Medical Oncology

Sean Fischer MD

Medical Oncology

Grace Chang MD

Medical Oncology

Isa Rodriguez MA

Medical Assistant

Timothy Kristedja MD

Medical Oncology

Senior Gyn Residents