Commission on Audit Regional Office No. IV-A (CaLaBaRZon)

Commonwealth Avenue, Quezon City

Philippines 1100

coa.reg4a@coa.gov.ph

Telephone Nos.: 8951-1341; 8951-1351; 8951-1382; 8951-3810

 

Office of the Regional Director

Director Mario G. Lipana

Regional Director

mario.lipana@coa.gov.ph

 

 

Director Teodora J. Landicho

OIC – Assistant Regional Director

 

doriejl@yahoo.com

 

ordcoar4a@gmail.com

 

Administration, Training and Finance Services

Ms. Consolacion J. San Luis

OIC – Service Chief

coa4arecords@gmail.com

r4atraining@gmail.com

 

Legal Services

Atty. Mark Ranier C. Arenas

Service Chief

ls.coaregion4a@gmail.com
 

Fraud Audit Services

Atty. Gerardo P. Sirios

OIC – Service Chief

coa4a.fraudauditservices@gmail.com
 

Technical Services – Information Technology Services

Juniel D. Sadiasa

Service Chief

techits4a@gmail.com
 

Local Government Sector IV-A

LGS A – Province of Batangas

Elena L. Luarca

OIC – Supervising Auditor

lgsbatangas_coar4a@yahoo.com
LGS B – Province of Cavite

Atty. Osana Theresa D. Domingo

OIC – Supervising Auditor

lgsbcavite@yahoo.com
LGS C – Province of Laguna

Rodolfo M. Asuncion

OIC – Supervising Auditor

lgsc_lagunaprovince@yahoo.com
LGS D – Province of Rizal

Olivia I. Bautista

OIC – Supervising Auditor

osa.rizal@gmail.com
LGS E – Province of Quezon I

Remigio A. Arzadon, Jr.

Supervising Auditor

lgse.quezon1@gmail.com
LGS E – Province of Quezon II

Nerma C. Dela Rosa

OIC – Supervising Auditor

lgse.quezon2@gmail.com
 

National Government Sector IV-A

Clusters 1, 2, 3, and 4

Juniel D. Sadiasa

Regional Supervising Auditor

coar4a.ngscluster1234@gmail.com
Cluster 5

Heidy M. Barcimo

Regional Supervising Auditor

coa.ngs5.iva@gmail.com
Clusters 6 and 8

Norminda M. Irica

Regional Supervising Auditor

r4angs6n8@gmail.com
Cluster 7

Atty. John Ferdinand V. Balgua

OIC – Regional Supervising Auditor

coar4a.ngs7@gmail.com
SUCs and other NGS Stand-Alone Agencies

Melanie P. Ruidera

Supervising Auditor

 

osa.sucs@gmail.com
 

Corporate Government Sector IV-A

Cluster 1, 2, and 4

Sylvia A. Espiritu

OIC – Regional Supervising Auditor

coar4a.cgs124@gmail.com
Clusters 3, 5, and 6

Edita M. Corpus

Regional Supervising Auditor

cgs356_4a@yahoo.com
Water Districts and other Stand-Alone Agencies

Marcelina Leticia B. Maquimot

Supervising Auditor

WDs4a@yahoo.com