Regular visits to a pediatrician are vital for monitoring a child's growth and development. The American Academy of Pediatrics recommends well-child visits at specific intervals: within the first week of birth, at 1 month, and then at 2, 4, 6, 9, 12, 15, 18, 24, and 30 months. After the age of 3, annual check-ups are typically sufficient unless specific health issues arise.