• Christie Dittmer – Admissions/ Communications Director

As the Admissions Director, Mrs. Dittmer manages the admissions and registration process for NorthBay’s new and returning families. In her role as Communications Director, she oversees the communication of essential information to existing and prospective NorthBay families and manages the NCA web site. As the Educational Administrator, she assists with the development and implementation of NorthBay’s academic program.


Christie has served at NorthBay Christian Academy since helping co-found the school in 1999. Christie has two bachelor’s degrees from the University of South Florida. She and her husband have enjoyed active involvement in their home church, including service with middle- and high-school students and leading adult classes.  They have three children, all educated at NorthBay. Christie enjoys reading, dancing, and music, and strives to live by I Peter 4:11.


  • Robbin Isham – Educational Director

The Educational Director directs the development and implementation of NorthBay’s academic program.  This includes providing management and support for NCA’s teachers and member families as well as the development, implementation, and evaluation of NorthBay’s academic program.


Robbin helped co-found NorthBay Christian Academy, and has served as the education director since 1999. She graduated with a bachelor’s degree from the University of Texas. Robbin and her husband Philip love serving in their church, and they strongly desire to see the gospel of Jesus Christ shared locally and globally.  Robbin and Philip have two daughters, both educated at NCA. In her spare time, Robbin enjoys spending time with family, walking, biking, reading, and going to the beach. One of her favorite verses is Philippians 2:5-7.


  • Philip Isham – Financial Director

The Accounting director handles deposits, reimbursements, insurance, and taxes.



  • Office Administrator, Ramita Buckley

Ramita graduated from Clearwater Christian College and has loved working in the field of Christian education since 1979.  Ramita and her husband, Bill, are members of Clearwater Community Church.  They have raised a daughter and a nephew and now are blessed with six grandchildren. When not with the grandchildren, Ramita enjoys raising orchids, going to the beach, walking, and reading.  Her life verse is Philippians 4:8.


  • Faculty Leader for PreK-4th, Mara Shelton

Mara Shelton has served as a teacher of several grades and subjects at Northbay Christian Academy since 2003.  Her teaching degree is from Milligan College in Johnson City, TN.  She taught in Orlando and North Carolina before moving to Oldsmar in 2003.  Her husband, Tommy Shelton, is pastor of Live Oaks Bible Church in Palm Harbor. They have six children – some former, some current, and some future NorthBay students. Mara enjoys reading, watching movies, doing crafts with her children and having date nights with her husband.  She is thrilled to be part of the Northbay community and has a deep desire for young children to grow academically, but more importantly, to see them grow in the knowledge and love of Jesus Christ.



  • Enrichment Faculty Administrator, Erin Aurich


  • Enrichment Office Administrator, Sharon Karn


  • Chapel Administrator, Yolanda Corteo


  • Community Life Administrator, Kristin Martin

Kristin has served as community life administrator at NorthBay since 2019. As community life administrator, Kristin provides leadership and oversight for NorthBay’s school committees, including fundraising, chapel, school socials, and room moms/dads. Kristin graduated from the University of North Texas with a bachelor’s degree in arts and sciences. She and her husband have two children who have attended NorthBay Christian Academy since preschool. Kristin enjoys reading, fishing, and hiking. Her favorite Bible verse is Ephesians 2:10.


NCA Board of Directors

Christie Dittmer

Philip Isham

Robbin Isham


NCA Pastoral Advisors

Dave & Valerie Negri