Central Office

OFFICE OF THE ADMINISTRATOR

Ricardo R. Visaya
Administrator

Email Address: adminoffice@nia.gov.ph 

Telephone Number: (632) 922-2795, (632) 926-4510 

Fax Number: (632) 926-2846

OFFICE OF THE SENIOR DEPUTY ADMINISTRATOR

Abraham B. Bagasin
Senior Deputy Administrator

Telephone Number: (632) 928-1280 

Fax Number: (632) 928-1280

OFFICE OF THE CORPORATE BOARD SECRETARY

Genever M. Dionio
Corporate Board Secretary (Acting)

Email Address: boardsec@nia.gov.ph 

Telephone Number: (632) 928-8820 

Fax Number: (632) 928-8820

OFFICE OF THE INTERNAL AUDIT SERVICES

Guillermo C. Mercado
Department Manager (Acting)

Email Address: ias@nia.gov.ph 

Telephone Number: (632) 926-2411 

Fax Number: (632) 926-2411

Teresita G. Pantalla
Division Manager (Acting)
Financial and Operations Audit

Email Address: ias-foad@nia.gov.ph 

Telephone Number: (632) 926-2411

Mary Cresencia J. de Paz
Division Manager (Acting)
Organization and Management Audit

Email Address: ias-omad@nia.gov.ph 

Telephone Number: (632) 926-2411

OFFICE OF THE CORPORATE PLANNING SERVICES

Rogelia C. dela Torre
Department Manager (Acting)

Email Address: cps@nia.gov.ph, corplan.nia@da.gov.ph 

Telephone Number: (632) 926-5896 

Fax Number: (632) 926-5896

Reynaldo D. Nilo
Division Manager (Acting)
Planning and Programming

Email Address: cps-ppd@nia.gov.ph 

Telephone Number: (632) 926-2076

Isidora M. Camaya
Division Manager (Acting)
Management Information

Email Address: cps-mid@nia.gov.ph 

Telephone Number: (632) 927-0916, (632) 926-5896 

Fax Number: (632) 927-0916

OFFICE OF THE LEGAL SERVICES

Genever M. Dionio
Department Manager

Email Address: ls@nia.gov.ph 

Telephone Number: (632) 926-2566 

Fax Number: (632) 926-2566

OFFICE OF THE PUBLIC AFFAIRS AND INFORMATION STAFF

Pilipina P. Bermudez
Department Manager

Email Address: niapais@gmail.com, vparamio@yahoo.com 

Telephone Number: (632) 921-3741, (632) 929-6071 to 79 loc. 113 / 119 

Fax Number: (632) 921-3741

OFFICE OF THE DEPUTY ADMINISTRATOR FOR ENGINEERING AND OPERATIONS

C'zar M. Sulaik
Deputy Administrator

Email Address: dep-eos@nia.gov.ph 

Telephone Number: (632) 928-9631 

Fax Number: (632) 928-9631

Lydia S. Esguerra
Department Manager
Engineering Department

Email Address: ed@nia.gov.ph 

Telephone Number: (632) 926-7678 

Fax Number: (632) 922-2328

Felipa E. Mascariñas
Division Manager
Construction Management
Engineering Department

Email Address: ed-cmd@nia.gov.ph 

Telephone Number: (632) 925-4614

Josias R. Pacolor
Division Manager
Design and Specifications
Engineering Department

Email Address: ed-dsd@nia.gov.ph 

Telephone Number: (632) 921-0018, (632) 929-8944

Reynaldo B. Villanera
Division Manager
Project Planning
Engineering Department

Email Address: ed-ppd@nia.gov.ph 

Telephone Number: (632) 926-7678

Romeo M. Lopez
Department Manager
Operations Department

Email Address: od@nia.gov.ph 

Telephone Number: (632) 928-4254 

Fax Number: (632) 928-4254

Wilhelm S. Tiangco
Division Manager (Acting)
Equipment Management
Operations Department

Email Address: od-emd@nia.gov.ph 

Telephone Number: (632) 928-4254

Bayani P. Ofrecio
Division Manager
Institutional Development
Operations Department

Email Address: centralidd@yahoo.com, od-idd@nia.gov.ph 

Telephone Number: (632) 927-7802

Mariano R. Catan Jr.
Division Manager (Acting)
Irrigation Engineering Center
Operations Department

Email Address: od-iec@nia.gov.ph, bslabiano@gmail.com 

Telephone Number: (632) 920-5409

Augustrese S. Torres
Division Manager
Systems Management
Operations Department

Email Address: od-smd@nia.gov.ph 

Telephone Number: (632) 928-4130, (632) 925-8556

   

OFFICE OF THE DEPUTY ADMINISTRATOR FOR ADMINISTRATIVE AND FINANCE SECTOR

Estrella E. Icasiano
Deputy Administrator

Email Address: estrella.icasiano@nia.gov.ph 

Telephone Number: (632) 926-2388, (632) 926-2165 

Fax Number: (632) 926-2165

Ailyne C. Agtuca-Selda
Department Manager
Administrative Department

Email Address: ad@nia.gov.ph 

Telephone Number: (632) 922-4768, (632) 926-3169 

Fax Number: (632) 921-3906

Conchita G. Calsiña
Division Manager
Human Resources
Administrative Department

Email Address: ad-hrd@nia.gov.ph 

Telephone Number: (632) 926-1996

Maria Filipinas F. N. Verzosa
Division Manager
Procurement and Property
Administrative Department

Email Address: ad-ppd@nia.gov.ph 

Telephone Number: (632) 926-2066, (632) 926-3169

Roger M. Malabanan
Division Manager
General Services
Administrative Department

Email Address: ad-gsd@nia.gov.ph 

Telephone Number: (632) 928-9207

Catherine DC Binag
Medical Officer VI
Medical and Dental Services
Administrative Department

Email Address: ad-mds@nia.gov.ph, cdcbinag@yahoo.com 

Telephone Number: (632) 928-4642

Tito A. Cuerdo
Civil Security Officer A
Civil Security Affairs
Administrative Department

Email Address: ad-csa@nia.gov.ph 

Telephone Number: (632) 922-4768

Editha D. Morales
Department Manager (Acting)
Financial Management Department

Email Address: fmd@nia.gov.ph 

Telephone Number: (632) 928-9245, (632) 922-2474, (632) 922-2330 

Fax Number: (632) 926-9852

Elizabeth A. Benzon
Division Manager (Acting)
Accounting
Financial Management Department

Email Address: fmd-ad@nia.gov.ph 

Telephone Number: (632) 928-9245, (632) 926-9852

Sylvia L. Leaño
Division Manager (Acting)
Budget and Revenue
Financial Management Department

Email Address: fmd-brd@nia.gov.ph 

Telephone Number: (632) 922-2474

Casiana C. Saludaga
Division Manager
Cash
Financial Management Department

Email Address: fmd-cd@nia.gov.ph, ofeliavibas@yahoo.com 

Telephone Number: (632) 921-3891