The Bright Futures Periodicity Schedule recommends services that pediatric providers should offer at every well-child visit from before birth to age 21.
From the Health Resources & Services Administration (HRSA), an agency of the U.S. Department of Health and Human Services -
The Health Resources & Services Administration maintains and shares clinical guidelines for infants, children, and adolescents that are age-specific, are based on the best available scientific evidence, and help increase the quality of primary and preventive care. The scale helps parents know what to expect.....and what to ask for.
Other resources are available too. Download the Periodicity Scale from here > https://mchb.hrsa.gov/programs-impact/bright-futures