Business Services

  • Lis Johnson Dr. Lisbeth Johnson is currently serving as the Interim Assistant Superintendent of Business Services. Lis is a celebrated educator with over fifty years of experience. She taught in South Bay Union School District, was a principal in Cajon Valley, and served as Director of Curriculum and Instruction in Walnut Valley. Dr. Johnson retired from the Santee School District after six years as Assistant Superintendent and nine years as Superintendent.

    Having been a Superintendent, Lis is familiar with all aspects of school business; budgets, bonds, facilities, child nutrition, purchasing, transportation and more. Although retired, Lis continues to serve as an Executive Coach for Principals, Superintendents, and aspiring Superintendents as well as a consultant for school districts, charter schools, private schools and non-profits.

    Dr. Johnson’s background and expertise are extensive; making her well poised to help our team navigate through these uncharted times. She can be reached through district email at lisbethjohnson@nsd.us, or cell at (619) 695-6870 and is ready to assist you with any questions or needs.

Business Services Directors

  • Mr. Jon Hansen - Director of Business Support Services: Child Nutrition Services, Purchasing, and Warehouse

    Ms. Erina Cowart - Director of Finance: Budget and Accounting, Payroll, Benefits, Accounts Payable, and Risk Management

    Mr. David Castillo - Director of Maintenance, Operations & Facilities: Custodial Services, Grounds, and Facility Maintenance

    Ms. Candy Byerly - Director of Transportation: Bus and Van Transportation Services


    Here to serve, each member of the Business Services team is committed to providing you with outstanding customer service. Find who you are looking for in our staff directory or email Superintendent@nsd.us. 

Our Staff

Byerly, Candy
Director of Transportation
(619) 336-7706
Email

Castillo, David
Director of Maintenance, Operations and Facilites
(619) 336-7770
Email

Cowart, Erina
Director of Finance
(619) 336-7714
Email

Fogerson, Virginia
Accounting Technician - Accounts Payable
(619) 336-7716
Email

Guerrero, Michael
Financial Accountant
(619) 336-7713
Email

Hansen, Jon
Director of Business Support Services
(619) 336-7735
Email

Mancilla, Charleen
Payroll/Benefits Specialist - Certificated
(619) 336-7724
Email

Noel, Perla
Payroll/Benefits Specialist - Classified
(619) 336-7715
Email

Olea, Yvette
Information Compliance Specialist
(619) 336-7765
Email

Sanchez, Evelyn
Administrative Secretary - Department/Program
(619) 336-7710
Email