Up until the 1980s, Newhall CA was its own unincorporated community. Its history dated back to the 1800s when it was the site of the first Anglo settlement in the Santa Clarita valley, complete with its own stagecoach stop. However, in modern times Newhall CA merged with the city of Santa Clarita CA. Today Newhall CA forms the southern portion of this larger city. It is home to a county park where visitors can tour a historic mansion belonging to a silent movie mogul. If allergies, asthma, or immune conditions are keeping you from enjoying life in Newhall CA, you can turn to Allergy, Asthma, & Immunology Medical Group for help. Our board-certified physicians can provide expert diagnosis and treatment for a variety of problems from hay fever to bee sting allergies to allergic asthma, eczema, and more. All of the tests and treatments we provide are safe and endorsed by the American Academy of Allergy, Asthma, & Immunology.