Internal Audit
11900 Price Road (Rm.203), Brownsville, Texas 78521
Phone: (956) 548-8381 Fax: (956) 548-8382
 
Staff Contact Information and Bios

Margarita Pizano-Flores, CTSBS
Co-Lead Internal Auditor
Phone: (956) 548-8381
mapizano@bisd.us



Ms. Margarita Pizano Flores is the Co-Lead Internal Auditor for the Brownsville Independent School District. Margarita has been employed with the district since February of 1980/81 School Year. She is a graduate of the University of Texas at Austin, and received her Masters of Business Administration degree from Pan American University. She is a Certified Texas School District Specialist. Ms. Flores is an active member of Texas Association of School Business Officials (TASBO), Valley Association of School Business Officials (VASBO), Association of Certified Fraud Examiners (ACFE), Rio Grande Valley Association for Certified Fraud Examiners (RGVACFE) Chapter, and the Institute of Internal Auditors (IIA). She has also contributed greatly to her community, as well as the auditing profession by serving on various boards including American Heart Association, Leadership Brownsville, Public Utility Board Consumer Advisory Panel (PUBCAP), and the TASBO Internal Audit Research Committee. Ms. Flores has provided the district with an incomparable 36 years of extensive expertise in the areas of Governmental Finance and Auditing. She has received the Commitment to Excellence Award nomination twice at the State Level.
Arvin Tucker, CPM, CRMA
Co-Lead Internal Auditor
Phone: (956) 698-0604
artucker@bisd.us
Mr. Tucker is the Co-Lead Auditor for the Brownsville Independent School District. Before coming to BISD, he was the Chief Auditor with the City of Brownsville. He was educated in India, as well as in the United States with a Master’s Degree in Accounting, Finance, and Management. His Bachelor’s Degree was in Accounting and Auditing. Currently, he holds specialized certifications as a CPM (Certified Public Manager) and CRMA (Certificate in Risk Management Assurance). He is also a member of the Institute of Internal Auditors and Association of Certified Fraud Examiners. He brings over 39 years of experience in the fields of Accounting, Finance, Auditing and Management.
   


 
   

Mark A. Sanchez, RTSBA
Internal Auditor
Phone: (956) 698-0162
marasanchez@bisd.us


Mr. Mark A. Sanchez is an Internal Auditor for the Brownsville Independent School District. Mark has been with the department since November of 2004. Mr. Sanchez has been with the district since October of 1994, and started as a Fixed Assets Clerk. He received his Bachelor of Business Administration degree with a major in Accounting in May of 1998, and was promoted to the position of Special Revenue Accountant with the BISD Finance Department. Mr. Sanchez is an active member of (TASBO) Texas Association of School Business Officials, (VASBO) Valley Association of School Business Officials, and (IIA) Institute of Internal Auditors. He brings over 22 years of diverse school district experience to the department.
   

Carla L. Balderas, CTSBS
Internal Auditor
Phone: (956) 698-0163
clbalderas@bisd.us


Ms. Carla L. Balderas, is an Internal Auditor for the Brownsville Independent School District. Carla has been with the department and school district since November of 2004. Previously, she was an Auditor with a local Certified Public Accountant firm and brings over five years of auditing experience to the Internal Audit Department. Carla received a Bachelor of Business Administration Degree with a major in Accounting in 2000. Mrs. Balderas is an active member of (TASBO) Texas Association of School Business Officials, (VASBO) Valley Association of School Business Officials, and (IIA) Institute of Internal Auditors.
   

Marco Porras, MACC
Internal Auditor
Phone: (956) 698-01644
mporras@bisd.us


Mr. Marco Porras is an Internal Auditor for the Brownsville Independent School District. Marco has been with the department and school district since August of 2007. Mr. Porras has been previously employed with the San Benito and Los Fresnos School Districts, as well as an external auditing firm. Marco is an active member of (TASBO) Texas Association of School Business Officials, (VASBO) Valley Association of School Business Officials, and (IIA) Institute of Internal Auditors. He recently earned his Master’s Degree from UTPA, and brings over 20 years of accounting and auditing experience to the Internal Audit Department.
   

Margie Fern, CEOP
Administrative Assistant
Phone: (956) 548-8381
mfern@bisd.us


Ms. Margie Fern is the Administrative Assistant for the Internal Audit Department at the Brownsville Independent School District. Margie has been with the department since May of 1994. She is also an active member of (TESA) Texas Educational Support Staff Association. Ms. Fern has done an exceptional job of providing clerical support services for over 21 years, which has enabled the department to operate in an efficient and effective manner.