PROGRAM OVERVIEW St. Mary’s County, MD (HS) CDI HS is committed to providing timely information to families, staff, and community members. Please check back regularly for the latest program updates. CENTERS Contact the center nearest to you with enrollment questions. Name Phone Address Admin Office (240) 720-7422 22099 Three Notch Rd, Ste 101, Lexington Park, MD 20653 (Map) Callaway Head Start 21030 Point Lookout Rd • Callaway, MD 20620, Callaway, MD 20620 (Map) Great Mills Head Start 21694 Great Mills Rd, Lexington Park, MD 20653 (Map) Mechanicsville Head Start 28255 Three Notch Rd , Mechanicsville, MD 20659 (Map) Point Lookout Head Start (240) 883-6778 26845 Point Lookout Rd, Unit 2, Leonardtown, MD 20650 (Map) St. Andrews Head Start (240) 284-0856 44078 St. Andrews Church Rd, California, MD 20619 (Map) Main Office 10065 E. Harvard Avenue Suite 700 Denver, CO 80231 info@cdiheadstart.org Media Queries media@acf.hhs.gov Accessibility opens in a new windowFollow Share your Feedback