Which type of doctor does Paula need for her immunizations?

Paula needs to see a pediatrician for her immunizations because pediatricians specialize in treating children and ensuring their health needs are met, which includes administering vaccines. Immunizations are a critical part of preventive healthcare for children, protecting them from various serious diseases. Pediatricians are trained to understand the recommended immunization schedules, monitor the child’s growth and development, and address any concerns related to vaccines.

The other types of doctors mentioned do not focus on immunizations. Gynecologists specialize in women's reproductive health, cardiologists deal with heart-related issues, and endocrinologists focus on hormone-related conditions. Therefore, none of these specialties would provide the immunization services that are specifically tailored for children's health, making the pediatrician the most appropriate choice for Paula's needs.