1. Associate Professor, UST Faculty of Medicine and Surgery
2. Chairman – Department of Internal Medicine, University of Santo Tomas Hospital, Manila, Phils.
3. Chief – Section of Rheumatology (Chinese General Hospital and Medical Center (CGHMC) and UST Faculty of Medicine and Surgery)
4. Chair, Department of Medical Education and Research, CGHMC
5. Chair – Asia Pacific League of Associations for Rheumatology (APLAR) and Philippine Rheumatology Association (PRA) Special Interest Group on Osteoporosis
6. Vice-Chair – Asia Pacific Panel of International Society for Clinical Densitometry (ISCD)
7. Council Member – Asian Federation of Osteoporosis Societies
8. Past-President, Osteoporosis Society of the Phils Foundation, Inc. (OSPFI) and Philippine Rheumatology Association (PRA)