OUR DOCTORS

Oliver Joseph Ole, MD
Internist / GERIATRICIAN

Doc OJ or Doc Ole is the Executive Director of MediPrime Medical Clinic, which he established to provide private, confidential, and accessible HIV care while ensuring that essential services remain free for those who need them. He obtained his medical degree from San Beda University College of Medicine in 2014. In 2017, he began working as a primary care physician for a community-based organization providing HIV treatment and transgender health services, and has been an advocate for HIV and LGBTQ+ health since then. Driven by his commitment to improving patient care, he pursued Residency Training in Internal Medicine at St. Luke’s Medical Center – Global City from 2019 to 2022. He subsequently completed his subspecialty training in Geriatric Medicine at the same institution in December 2025, focusing on the complex health needs of older adults and the promotion of healthy aging through comprehensive, patient-centered care. Currently, Dr. Ole is working to highlight and address the growing non-HIV healthcare needs of people living with HIV, advocating for improved healthcare services and multidisciplinary support to enhance their overall health and quality of life.

MARVIN NATURAL, MD, MBA
HIV PRIMARY Care, TRANSHEALTH, AND FAMILY MEDICINE PHYSICIAN

Doc Marvin or Doc Marv is the Chief Medical Officer of MediPrime Medical Clinic. He received his medical degree from the University of the East, Ramon Magsaysay Memorial Medical Center in 2022 and his MBA from the Ateneo Graduate School of Business in 2016. He is currently a Family and Community Medicine resident at The Medical City Clark. An HIV advocate, counselor, and PrEP ambassador, he wishes to continue his passion for LGBTQ+ healthcare now as an HIV primary care physician and a transgender healthcare provider. He likes spending his free time working out in the gym, running, and binge streaming series.
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Andrew Carlo Dioso, PTRP, MD
PRIMARY Care Physician

Doc Drew is a general physician with interests in sexual health and HIV medicine. He received his degree of Doctor of Medicine from the University of the East, Ramon Magsaysay Memorial Medical Center in 2021. He was a licensed Physical Therapist prior to pursuing Medicine and has a brief background in managing basic musculoskeletal cases. He aims to broaden his knowledge with HIV Medicine, and aims to provide care for PLHIV and those at risk for infection.​
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Glethe Hanzel Saliendra, RN, MD, FPCP, DPSMID
INTERNIST / ​Infectious Disease SPECIALIST

​Doc Hanz is an active consultant in Ortigas Hospital and Healthcare Center as an Infectious Disease Specialist and HIV counselor. He obtained his medical degree in Far Eastern University – NRMF in 2013. He finished his Internal Medicine Residency Training Program at Rizal Medical Center in 2017. He practiced for 2 years in Rizal area as an Internist and decided to pursue further his training and underwent Fellowship Training program in Adult Infectious Diseases in San Lazaro Hospital and completed in 2022.
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Juan Paolo David Villena, MD, DPDS, DDSP-PDS
Dermatologist / DERMATOPATHOLOGIST

Doc Paosee is a board-certified dermatologist and a Dermatopathology Fellowship graduate. He obtained his medical degree from the College of Medicine at the University of the Philippines Manila, did his residency training in Dermatology at the Philippine General Hospital and finished 4th in the specialty board examination in Dermatology given by the Philippine Dermatological Society last June 2021. He pursued further training in Dermatopathology at the Philippine General Hospital and graduated in May 2023.
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Jake Lester Villanueva, MD
​General Psychiatrist

Dr. Villanueva is a practicing psychiatrist in Metro Manila, but he also caters to different regions in the Philippines through online platforms. He speaks Tagalog, English, and conversational Cebuano (Bisaya). He previously worked as a Doctor-to-the-Barrio in Cebu, where he spearheaded the community-based mental health program in Tabogon town. During his stay in Cebu, he worked on integrating barangay health workers (BHW) in the service delivery of mental health services in far flung barangays. He finished his psychiatry residency training at the National Center for Mental Health where he gained experience in clinical, as well as administrative functions. His research focused on mapping the mental health facilities and services in the country to identify the gaps in service delivery. He integrates biological and psychosocial aspects when managing his clients.​
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Kristel-Ann Frances Baybay, MD, FPOGS
Obstetrician-Gynecologist / TROPHOBLASTIC DISEASE SPECIALIST

Doc Kristel, an Obstetrician and Gynecologist, specializing in Female Reproductive Health is an active Consultant at Pasig Doctors Medical Center and St. Christiana Maternity Hospital. She finished her Medical degree at Our Lady of Fatima University College of Medicine. She completed her Obstetrics and Gynecology Residency training in Rizal Medical Center. She provides comprehensive medical care to women focusing on reproductive health, pregnancy, childbirth, and postpartum care. She diagnose and treat conditions related to the female reproductive system, perform surgeries, offer preventive care, counseling, and family planning guidance.
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Ron carlo vedan, MD
​PRIMARY Care Physician

Dr. Ron is a general physician with interests in sexual health, HIV care, and mental health. He earned his Doctor of Medicine degree from University of the East Ramon Magsaysay Memorial Medical Center in 2023 and previously completed a degree in BS Public Health, where he gained experience in public health research focusing on project monitoring and evaluation. He is committed to broaden his knowledge in HIV medicine and provide holistic, patient-centered care for people living with HIV (PLHIV) and individuals at risk of infection. In his free time, he enjoys staying active at the gym, playing racket sports such as tennis, and traveling—especially to beach destinations