Cal DOT® makes it easy to make sure your certification is always up to date. Cal DOT® is the preferred DOT-Certified medical examiners in Modesto, CA., and surrounding areas and are proud to know that many large trucking companies rely on us to contact commercial drivers when it is time for their recertification. Our staff keeps track of your records and will remind you when you are due for renewal of your CDL medical certificate through a DOT physical. Call us today to make an appointment or stop by during our extended hours. We’re open every day so that you can come in at your earliest convenience.