Ronald, Tang DOAttending PhysicianHematology/Oncology Internal Medicine Education: Western University of Health SciencesMain Office:818-782-4104 Los Angeles Hematology Oncology Medical Group 50 Alessandro Pl #310 Pasadena, CA 91105 Certification: Board Certified in Hematology/Oncology, Internal Medicine Additional Office: 6850 Sepulveda Blvd STE 211 Van Nuys, CA 91405 (818) 782-4104