A. Hallfrisch - Head of School

April Hallfrisch

Head of School

April Hallfrisch started with BASIS when it opened one of its first primary campuses in San Antonio in 2017 as a 4th grade Humanities teacher before beginning her role as a Director of Student Affairs in 2018.  She went on to the role of Director of Academic Programs in 2019 and recently became the Head of School here at BASIS San Antonio Primary-Medical Center Campus.

April began her career in education in Minnesota and relocated to Texas in 2006.  With over 16 years of experience as an educator, she has worked diligently to establish a rigorous program and build a strong rapport with her students.  Additionally, over the span of her educational career, April served as a middle and high school English teacher, English department chair, and was Teacher of the Year in 2017.

April holds a Bachelor of Arts in English and is a Texas certified teacher.

As the Head of School, April believes that education creates an opportunity for all students to grow regardless of ability and background, and embraces the BASIS model of facilitating student growth through high expectations and academic support. Go Badgers!

Contact April Hallfrisch

C. Luna-Arocha

Cata Luna-Arocha

Head of Operations

Cata Luna-Arocha earned her BS in Biology from Texas A&M University, San Antonio. After that, she taught high school science, was a college readiness teacher with GEAR UP, and was an advocate for Special Programs. She also spent time living in Boston, Massachusetts, where she taught middle school science. Ms. Luna-Arocha joined BASIS Charter Schools as part of the team that helped open BASIS San Antonio Primary Medical Center. She served as the school’s Physical Education teacher before becoming Head of Operations.

As Head of Operations, Ms. Luna-Arocha will manage facilities, human resources, finance, accounting, events, and logistics. She has extensive knowledge of both the academic and operations side of education and understands the importance of each aspect in being able to successfully run a school. She is excited to utilize this knowledge to continue BASIS San Antonio Primary Medical Center’s tradition of excellence.

Contact Cata Luna-Arocha

P. Carson

Patrick Carson

Director of Academic Programs

Patrick Carson graduated from the University of Texas, San Antonio with a degree in Interdisciplinary Studies. He has served as a teacher and school administrator in both private and public schools within the San Antonio area for close to 25 years. He’s also coached middle school basketball for a number of years.

Mr. Carson joined BASIS Charter Schools in 2017 as part of the BASIS San Antonio Primary Medical Center staff, before moving to BASIS San Antonio Shavano to serve as Dean of Students for the Lower School Program.

Mr. Carson is excited to be back at BASIS San Antonio Primary Medical Center as the Director of Academic Programs, where he will oversee curriculum implementation and work with teachers to uphold the school’s high academic standards. He considers it an honor to be serving BASIS San Antonio Primary Medical Center’s students and families.

Contact Patrick Carson

Ashley Trevino

Ashley Trevino

Director of Student Affairs

Ashley Trevino joined BASIS San Antonio Primary Medical Center Campus in 2017 as a Second Grade Learning Expert Teacher during the first year as a primary campus. Though her years in this role, it prepared her to take on the role as a Dean of Students in 2020 in supporting our campus and students in academics and behaviors. She recently became the Director of Student Affairs after realizing that her passion lies in student development socially, emotionally, behaviorally, and academically.

Ashley earned her Bachelor’s Degree in Communication Disorders with a minor in Psychology from Our Lady of the Lake University in San Antonio, Texas. Before joining BASIS San Antonio Primary Medical Campus, Ashley worked as a speech therapist assistant for home health agencies in San Antonio and surrounding areas. Her passion working with children helped her quickly realize that education is where her heart lies.

Ashley seeks to bring her passionate commitment to education and her vision for leadership to the field of education. She is committed in collaborating with students as they develop their ability to become critical thinkers, problem-solvers, innovators, effective communicator’s, and self-directed learners.

Contact Ashley Trevino