Alliance Piera Barbaglia Shaheen Health Services Academy High School (Alliance HSA) is proud to be part of Alliance College-Ready Public Schools, one of the largest and most successful nonprofit public charter school networks in Los Angeles. Together, we serve over 12,000 scholars across 25 middle and high schools, providing a safe, supportive, and college-focused environment where every scholar is known, valued, and prepared for success in college, career, and life.