Dr. Carlos Castillo

Carlos M. Castillo

Carlos M. Castillo
Carlos M.
Medical Oncologist

Languages spoken

English, Spanish

Expert in




Jacksonville (Medical oncology)
Jacksonville (Medical oncology)

425 North Lee Street Suite 104
Jacksonville, Florida 32204

30.360599234564326, -81.66903268789939
Fernandina Beach (Medical oncology)
Fernandina Beach (Medical oncology)

1699 South 14th Street Suites 1-3 Fernandina Beach, Florida 

30.649150843459005, -81.45519237254555


Medical oncology

Dr. Carlos Castillo is board-certified in Internal Medicine and Medical Oncology and has nearly 20 years of oncology and hematology experience. He recently served as Medical Director of the Lower Keys Cancer Center in Key West, providing the only oncology care with GenesisCare to the Lower Keys. After serving as a Regional Consultant in Hematology Oncology since the 1990's, providing research, education and patient care to the North East Florida, he joined GenesisCare in Jacksonville in 2008. Dr. Castillo earned his Medical Doctor degree from the University of Puerto Rico School of Medicine in Rio Piedras, PR, and completed his residency in Internal Medicine and Fellowship in Hematology/Oncology at University of Florida.


Career positions

Current position(s)

  • GenesisCare of Jacksonville, Medical Oncology Division - Medical Oncologist, Jacksonville, FL

Past position(s)

  • Jacksonville Oncology Group - Medical Oncologist, Jacksonville, FL



  • University of Puerto Rico, Bachelor of Science, Graduated Cum Laude, Rio Piedras, Puerto Rico
  • University of Puerto Rico School of Medicine, Doctor of Medicine, Rio Piedras, Puerto Rico


  • University of Texas Health Science School of San Antonio, Internal Medicine, San Antonio, TX


  • University of Florida Health Science Center, Internal Medicine, Jacksonville, FL


  • University of Florida Health Science Center, Hematology and Oncology, Jacksonville, FL

Professional association


Awards and honors

  • cum laude at University of Puerto Rico
  • Vitals Patients' Choice Award