Professional Overview
Dr. Diana Krystina Nieves Castro is a compassionate and accomplished General Practitioner (M.D.) whose career reflects a profound commitment to equitable healthcare, pediatric wellness, and women’s health advocacy. Based in San Juan, Puerto Rico, Dr. Nieves Castro serves as a leading physician at Hospital del Niño and San Jorge Children’s Hospital in Condado, where she provides comprehensive care to children and families across the island.
Her work bridges the frontlines of community medicine and the broader mission of healthcare equity — ensuring that every patient, regardless of background, receives thoughtful, evidence-based, and dignified care.
Education and Training
Dr. Nieves Castro earned her Doctor of Medicine (M.D.) degree following a rigorous academic path rooted in both clinical excellence and social medicine.
Her education emphasizes integrative, patient-centered care with a strong foundation in preventive medicine, family health, and women’s cardiovascular research.
Her postgraduate training and continued professional development reflect a lifelong dedication to medical innovation, emergency medicine, and equitable healthcare outcomes.
She continues to participate in regional and international conferences, advancing her expertise in both cardiovascular health and gender-specific emergency response models.
Clinical Practice
At Hospital del Niño and San Jorge, Dr. Nieves Castro provides medical care to a diverse pediatric and family patient base, focusing on:
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Pediatric and family medicine
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Preventive and emergency care
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Diagnostic evaluation and multidisciplinary treatment planning
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Health education and parental counseling
Her hands-on approach and empathetic communication style have made her a trusted presence among families, colleagues, and community health networks throughout Puerto Rico.
Research and Medical Advocacy
Dr. Nieves Castro’s most distinguished contribution to medical research centers on cardiac emergency disparities among women of color, with a focus on gender and racial differences in symptom presentation and treatment response.
Her work advocates for greater representation and awareness in cardiology research, encouraging practitioners and institutions to adopt protocols that recognize biological, hormonal, and social determinants that uniquely affect women — particularly those from underrepresented backgrounds.
Through her advocacy, she continues to highlight the critical importance of early recognition, tailored interventions, and culturally sensitive healthcare systems.
Leadership in The Health Initiative
As Chief Medical Officer (CMO) and Board Member of The Health Initiative, a registered 501(c)(3) nonprofit organization,
Dr. Nieves Castro oversees the organization’s medical programs, outreach missions, and public health partnerships.
Her leadership ensures that every initiative — from local health drives to international education programs — maintains clinical excellence, ethical integrity, and compassion at its core.
Under her guidance, The Health Initiative has strengthened its medical outreach capacity, expanded educational training programs for underserved areas, and established new standards for safety and evidence-based care in humanitarian operations.
Humanitarian and Community Impact
Beyond the hospital and boardroom, Dr. Nieves Castro is deeply involved in community outreach and medical education. She has led volunteer missions through The Health Initiative, coordinating free clinics and awareness campaigns for preventive care, maternal health, and early childhood wellness.
Her work embodies a philosophy that medicine extends beyond treatment — it is an act of empowerment, education, and equity.
Areas of Expertise
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General and Family Medicine
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Pediatric and Preventive Care
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Cardiovascular Emergencies in Women
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Healthcare Disparities Research
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Clinical Program Design and Implementation
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Community Health and Education
Professional Ethos
Dr. Diana Krystina Nieves Castro represents a new generation of physicians — blending clinical precision with social consciousness. Her work reflects the belief that healthcare should not only heal the body but also restore dignity, awareness, and opportunity to every patient served.
Her ongoing research, leadership, and compassionate care continue to inspire both colleagues and the communities she serves — shaping a future of medicine that is inclusive, data-informed, and deeply human.
