Dr. Gilbert Rañoa is a spine neurosurgeon specializing in cervical spine surgery and craniovertebral junction disorders. He practices at University of Santo Tomas Hospital, Cardinal Santos Medical Center, Chinese General Hospital, and St. Martin de Porres Charity Hospital. Dr. Rañoa is recognized for expertise in craniocervical instability and complex cervical spine surgery. He actively participates in spine education and academic discussions on craniovertebral junction surgery. His work focuses on prevention and management of complications in cervical spine procedures.