Internal Medicine Specialist As a board-certified Internist, Dr. Yllana provides comprehensive, evidence-based care for complex, multi-system chronic and acute adult illnesses. Her foundational expertise allows her to approach patient health holistically, managing intricate metabolic, cardiovascular, and systemic conditions with a sharp diagnostic focus that ensures long-term patient stability. Pulmonology Specialist As a diplomate and specialist in Pulmonary Medicine, Dr. Yllana delivers advanced care for diseases affecting the respiratory system. Practicing at the national referral hub, the Lung Center of the Philippines, she specializes in diagnosing and treating complex lung pathologies, including advanced airway diseases, interstitial lung diseases, and severe respiratory infections. She pairs her clinical diagnostic skills with a deep understanding of pulmonary function mechanics to restore optimal lung health. Critical Care Medicine Specialist Operating at the absolute highest tier of acute care, Dr. Yllana is a specialized Critical Care Fellow dedicated to managing life-threatening emergencies in the Intensive Care Unit (ICU). She is an expert in stabilizing critically ill patients facing advanced cardiorespiratory failure, severe sepsis, and multi-organ dysfunction. Her sharp independent judgment, mastery over mechanical ventilation, and rapid triage capabilities make her a trusted leader in high-stakes, time-sensitive medical crises.