Physics and Biology in Medicine (formerly known as Biomedical Physics) is an interdisciplinary graduate program in the David Geffen School of Medicine at UCLA. Faculty and students in the program are involved in Biomedical Research in Radiological Imaging and Therapy that operates at the intersection of traditional disciplines. In addition, it requires interdisciplinary teams of scientists with backgrounds in:

1. Biology or its subspecialties (e.g. molecular biology, etc.)
2. Chemistry or its subspecialties (e.g. biochemistry, etc.)
3. Physics or its subspecialties (e.g. medical physics, biophysics, etc.)
4. Mathematics or its subspecialties (e.g. computational methods, simulation, etc.)
5. Engineering or Computer Sciences or any of their subspecialties (e.g. biomedical engineering, nuclear engineering, etc.).

The program is primarily aimed at students who wish to pursue the Ph.D. degree and offers training in four specialties:

1. Molecular Imaging and Theranostics (Imaging of the living chemistry of cells and tissues of the body)
2. Medical Imaging (Imaging anatomy, physiology and pathology using MR, CT and other modalities)
3. Therapeutic Medical Physics (Physics of radiation therapy and novel planning or delivery methods)
4. Molecular and Cellular Oncology (Biological effects of radiation for both therapeutic and public protection)