Dr. Rena D. Callahan has been practicing medicine for 10 years. Dr. Callahan graduated from the University of Pennsylvania School of Medicine in 2004. She practices medicine in Valencia, CA and specializes in Hematology/Oncology. Dr. Callahan is affiliated with Henry Mayo Newhall Memorial Hospital, Ronald Reagan UCLA Medical Center, Huntington Memorial Hospital and Santa Monica UCLA Medical Center. She speaks English and Spanish.
Years in Practice: 10 Years
Languages Spoken: English, Spanish
Medical School: University of Pennsylvania School of Medicine
Graduation Date: 2004