Dr. Gregory Sarna is a specialist in medical oncology in West Hollywood, California and he is working in collaboration with Cedars-Sinai Medical Center. He got his diploma from David Geffen School of Medicine at UCLA. He did an internship at UCLA Medical Center. He did two residency programs in internal medicine, both of them at UCLA Medical Center. The doctor is board certified in internal medicine and medical oncology, and he has been practicing for more than 20 years.