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University of Santo Tomas Hospital (USTH)



The Artificial Kidney Unit of the University of Santo Tomas Hospital (USTH) is a product of the pioneering work of Dr. Romeo Abella, a Filipino Nephrologist who introduced the concept of renal replacement therapy (RRT) in the Philippines. He installed the first hemodialysis machine in this hospital, providing the chronic kidney disease (CKD) patients with a new lease in life. Dr. Aurora Padolina-Perez later installed another machine in 1969. Together, these two doctors can be considered as one of the pillars of hemodialysis therapy in the Philippines. They also introduced kidney transplantation in the country with the first successful transplantation done in this institution in 1969 with Dr. Domingo Antonio Jr. as the transplant surgeon.


After Dr. Abella left for the United States, Dr. Perez was appointed as Head of the unit. She personally trained nurses and midwives to assist the patients. In a few years, the increasing demand for such treatment led to the acquisition of new machines donated by Mrs. Greta Go of YSS Laboratories. In 1973, Dr. Libertad Nazareno-Rosales, who newly trained from Newark Beth Israel Medical Center, New Jersey, joined the team. It was this hospital, with the help of its Director in the Section of Nephrology, Dr. Reymour Ribot, which donated two machines to the unit thus ably accommodating both private and charity patients.


With the increasing number of patients, the need to train more nephrologists became apparent. In 1984, the training program in Adult Nephrology under the Department of Medicine was started, with Dr. Oscar Naidas as the first fellow-in-training. Several other graduates followed and are now competent nephrologists practicing in different parts of the country.


In 1992, Dr. Tito P. Torralba, then Chairman of the Department of Medicine, established the Section of Nephrology as a distinct and separate subspecialty with Dr. Libertad Nazareno-Rosales as its First Chief of Section. 


In 1995, Dr. Padolina-Perez established the UST Transplant Foundation to assist indigent patients who need to undergo kidney transplantation. This led to an increase of transplants done in this institution, further strengthening the training in this subspecialty.


In 1997, Dr. Nazareno-Rosales, recognizing the need for a peritoneal dialysis unit, broached the idea to Dr. Ramon Sin, then the Dean of the Faculty of Medicine and Surgery and concurrent Medical Director of this hospital. With his generous support, the USTH Peritoneal Dialysis Unit came into fruition and was inaugurated on September 26, 1997.


Through all these years, the Section has continually improved its services and facilities, fueled by its vision of enhancing the quality of life of patients with end stage renal disease (ESRD). In August 2001, in keeping with its purpose, the Artificial Kidney Unit underwent a complete renovation with acquisition of ten new hemodialysis machines and now renamed as the Center for Kidney Diseases.  More than a change in name the unit has certainly become a center well equipped to meet the challenges of the new millennium.




The USTH Section of Nephrology envisions itself as a Center of Excellence for healthcare, medical education, research and training for future Nephrologists according to the values and principles of a Catholic Thomasian physician.



  • To develop competent Nephrologists with adequate knowledge and clinical skills necessary for the diagnosis, treatment and prevention of common and uncommon renal diseases (TRAINING).
  • To provide compassionate and dedicated Nephrologists who will practice in the different regions of the country (SERVICE).
  • To teach and collaborate with the fellows-in-training to conduct and publish clinically significant research to upgrade the standard of practice of Nephrology in the Philippines (RESEARCH).
  • To prepare the fellows-in-training to become future academicians and faculty members of any medical school (TEACHING).



Program Overview

The Nephrology Fellowship Training Program of the University of Santo Tomas Hospital (USTH) is a program accredited by the Philippine Society of Nephrology (PSN), designed to train graduates of Residency Training Program in Internal Medicine in the field of Nephrology and Hypertension. This program was started in 1984 and has produced competent and qualified nephrologists since.


The training program provides an in-depth exposure (evaluation and management) to the broad spectrum of renal diseases, electrolyte abnormalities, and renal replacement therapies (hemodialysis, peritoneal dialysis, renal transplantation) encountered in clinical Nephrology, both in the Clinical and Private Divisions, and the out-patient department of the USTH. In the Clinical Division, the fellow’s role is primarily that of directing the management of the consultations while providing maximal educational benefits to the medical house staff.  There is also a one-month rotation at the National Kidney and Transplant Institute (NKTI) for more exposure to kidney transplant patients. The fellows are under the direct supervision of the consultant staff who are all board-certified in Nephrology and provide teaching in the form of didactic lectures, teaching rounds and active participation in conferences.  In addition, the   fellows are expected to complete one research project per year, before they graduate.


After the said training, the graduates should be qualified to become Diplomates and subsequently, Fellows of the Philippine Society of Nephrology, and practice as sub-specialists in Nephrology.



 Duration of Training

A minimum of two years basic training shall comprise the Clinical Fellowship Training Program in Nephrology.
A research fellowship of one year would be offered to those who are interested.

 Number of Trainees

Three to four trainees will be available each year per level of training 


The two-year training program exposes the trainees provides more than adequate material for clinical exposure.  They are to see patients both in the clinical and private divisions.  The program also includes a one month rotation at the NKTI to augment clinical skills in management and follow-up of kidney transplant patients.  The program also provides a continuing ambulatory patient care (OPD) rotation for at least 2-3 times a month.


At the end of the training program, the fellows are expected to have gained mastery of the renal syndromes – the approach to diagnoses and management.  Likewise, they are expected to have proficiency in basic procedures such as work-up and peri-operative management of Kidney Transplant cases, hemo- and peritoneal dialysis; and renal biopsies.



The trainees are required to produce a research output at the end of the training period.  The USTH mandates that all research output be reviewed by the Institutional Review Boards and Ethics Committee.  The Section aims that research materials be published in local and international publications.


 Regular Conferences

Regular conferences are held with the supervision of the training officer and active staff of the section.  

  • Annual Hospital Grandrounds
  • Case Conferences (weekly)
  • CAT Appraisal
  • Journal Reports
  • KDIGO / Brenner Hours
  • Pre-Transplant Conference
  • Quarterly Nephrology – Pathology Conference
  • Quarterly Nephrology – Urology Conference
  • Weekly Medical Grandrounds
  • Weekly Mortality & Morbidity audit
  • Weekly workshop on fluids and electrolytes, acid-base disturbance


Admission into the Program

Pre-requisites for Admission


  • Satisfactory completion of a Residency Training Program in Internal Medicine from an institution accredited by the Philippine College of Physicians (PCP);
  • Specialty board-certified in Internal Medicine; or those qualified to take the Specialty Boards in Internal Medicine;
  • Applications are submitted to the USTH Department of Medical Education and Research and forwarded to the Section for evaluation.


Details of requirements for applicants are available HERE

Initial screening (written and oral exams, interview) are done on the last week of October.



Medical Staff

 Organization/Training Staff

  • Chief-of-Section : Elizabeth Angelica E. Lapid-Roasa, MD
  • Training Officer : Stephanie C. Andres, MD      
  • Executive Officer : Porshia B. Comes-Natividad, MD
  • Head, Center for Kidney Disease : Libertad Nazareno-Rosales, MD


 Active Staff

  • Froilan A. De Leon, MD
  • Melvin R. Marcial, MD
  • Juan Miguel Gil Ortiz, MD
  • Charito P. Malong, MD
  • Jose Protacio D. Marcia, MD
  • Dexter Clifton C. Pe, MD
  • Romina Jasmin P. Laguesma, MD
  • Janice Garcia, MD
  • Maria Rachel B.Uy, MD



  • Froilan A. De Leon, MD, FPCP, FPSN
  • Elizabeth Angelica E. Lapid-Roasa, MD, FPCP, FPSN
  • Melvin R. Marcial, MD, FPCP, FPSN
  • Porshia B. Comes-Natividad, MD, FPCP, FPSN
  • Dexter Clifton C. Pe, MD, FPCP, FPSN
  • Romina Jasmin D. Laguesma, MD, FPCP, FPSN
  • Marie Stella Navarro, MD, FPCP, DPSN


 Current Trainees

Second Years:

  • Alag, Mark Louie C. (Chief Fellow)
  • Lim-Gaw Te, Kathleen Anne E.
  • Magbanua-Provido, Sheina Marie J.


First Years:

  • Cabarles, Alsun S.
  • Gomez, Ma. Faye Ann S.
  • Herceda, Aileen L.
  • Reyes, Nicetas Corazon L.



  • 1986-Oscar Naidas, MD
  • 1988-Froilan De Leon, MD
  • 1990-Sonny Absalon, MD
  • 1991-Elizabeth Lapid-Roasa,MD
  • 1993-Leana Agustin, MD
  • 1994-Ma. Paulette Marcial, MD
  • 1996-ArneliaBersales, MD
  • 1997-Edgardo Noblejas, MD
  • 1997-Melvin R. Marcial, MD
  • 1997-Divina Cruz, MD
  • 1997-FloranteTuazon, MD
  • 1997-Ma Ana De Leon-Tan, MD
  • 1998-Joy M. Gulmatico, MD
  • 1998-Juan Miguel Ortiz, MD
  • 1998-Ana LiessleSantamaria, MD
  • 1999-Milo G. Villena, MD
  • 2000-Kenneth T. Coo, MD
  • 2000-Michael C. De la Cruz, MD
  • 2000-Eden B. Castillo, MD
  • 2001-Stephanie Andres, MD
  • 2001-Lourdes Rhoda B. Reyes, MD
  • 2002-Abigail Teodora F. Abonal, MD
  • 2002-Margarita S. Abalon, MD
  • 2002-Rhowena  A. Florendo, MD
  • 2003-Genesere R. Benabe-Vino, MD
  • 2003-Lea Marie A. Campos, MD
  • 2003-Porshia B. Comes-Natividad, MD
  • 2004-Joseph Michael Abcede, MD
  • 2004-Glenn R. Butuyan,MD
  • 2004-Sonny Antonio, MD
  • 2004-GingerlitaSamonte, MD
  • 2005-Edison Guerrero, MD
  • 2005-FranilenPaylado, MD
  • 2005-GaudencioDuenas, MD
  • 2007-CharitoMalong-Francisco, MD
  • 2007-Dolores Reyes, MD
  • 2007-Joan-Bellosillo-Lindero, MD
  • 2008-Jose Marcia, MD
  • 2008-Mary Rosalie Almira, MD
  • 2009-Janice S. Garcia, MD
  • 2009-Dennis P. Fuentes, MD
  • 2009-Victor Alexander C. Victoriano, MD
  • 2009-Beverly C. Aguila, MD
  • 2009-Joseph Peter P. Austria, MD
  • 2009-Roceliadelos Reyes-Gonzales, MD
  • 2009-Dexter Clifton C. Pe, MD
  • 2010-Banico, Rodelie, MD
  • 2010-Laguesma, Romina Jasmin, MD
  • 2011-Vergara, Maria Fe, MD
  • 2011-Marie Stella Navarro, MD
  • 2011-Chong-Lu, Mary Anne, MD
  • 2011-Rebong, Ritchie, MD
  • 2012-Loyola, Sheela Marie, MD
  • 2012-Faraon, Margarita, MD
  • 2012-Mercado, Eloisa, MD
  • 2013-Querequincia, Karen Ann B, MD
  • 2013-Roxas, Michael Roy Z, MD
  • 2014- Salazar-Simon, Ma. Katrina, MD



Contact Info


Section of Nephrology/Artificial Kidney Unit

University of Santo Tomas Hospital

Trunk Line: +63 (02) 731-3001