About
O. grew up in a small farming community in the Galilee region of Israel, born to American parents. Her father is a Corpus Christi native, and she moved there to begin her college education at Del Mar College. She later completed her Bachelor's degree at the University of Texas at Austin, then earned her medical degree at Texas College of Osteopathic Medicine in Fort Worth. Her residency training in family medicine took place at Christus Spohn Memorial in Corpus Christi, where she also met and married her husband, Michael.
After residency, Dr. Dunn spent eight years in rural private practice in Beeville, caring for obstetrical patients and delivering hundreds of babies. She then returned to Corpus Christi and held leadership roles at a large healthcare organization focused on Medicare-aged patients. Those years deepened her interest in building genuine patient relationships and pursuing root-cause medicine. She holds a strong passion for functional medicine, including hormone balancing, gut health, autoimmune conditions, cardiometabolic disease, and brain health. Her faith informs her whole-person philosophy: she views the human body as designed with remarkable capacity for healing and believes that meaningful care addresses the physical, emotional, and spiritual dimensions of health.
Education & Training
Undergraduate
Del Mar College (started); University of Texas at Austin, Bachelor's degree
Medical School
Texas College of Osteopathic Medicine, Fort Worth
Residency
Christus Spohn Memorial, Corpus Christi
Conditions Treated
Who is Dr. Dunn right for?
Dr. Dunn serves patients across all age groups, from children to adults managing complex chronic conditions. She is a strong fit for patients dealing with thyroid disorders, hormonal imbalances, digestive issues, autoimmune disease, or long COVID. Adults seeking root-cause investigation into metabolic or cardiometabolic concerns benefit from her functional medicine approach. Patients who want a physician they can reach directly by phone or text will find her practice especially accessible. Her whole-person philosophy suits those who value faith-informed, compassionate care alongside evidence-based medicine.
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Family MedicineFrequently Asked Questions
Dr. Dunn treats a broad range of acute and chronic conditions. Her clinical focus includes diabetes, hypertension, COPD, asthma, coronary artery disease, heart failure, IBS, SIBO, IBD, Hashimoto's thyroiditis, hypothyroidism, PCOS, perimenopause, andropause, anxiety, depression, ADHD, autoimmune disease, long COVID, and post-viral syndrome. She integrates functional medicine tools to address underlying contributors to each condition.
Dr. Dunn uses functional medicine to investigate root causes rather than manage symptoms in isolation. She orders expanded functional lab panels covering hormones, gut microbiome, organic acids, food sensitivities, heavy metals, nutrigenomics, and cardiometabolic markers. She then builds individualized care plans addressing nutrition, sleep, stress, detoxification, and supplementation.
Dr. Dunn earned her medical degree at Texas College of Osteopathic Medicine in Fort Worth. She completed her family medicine residency at Christus Spohn Memorial in Corpus Christi. Before medical school, she completed her undergraduate education at the University of Texas at Austin, following early coursework at Del Mar College.
Dr. Dunn brings more than a decade of hands-on clinical experience. She spent eight years in rural private practice in Beeville, including obstetrical care. She then held leadership roles at a large healthcare delivery organization in Corpus Christi focused on Medicare-aged patients before launching Raphael Direct Primary Care.
Yes, Dr. Dunn sees patients of all ages. The practice offers membership tiers for children ages 0 to 17 and adults 18 and older. She has experience in both pediatric and adult care, as well as obstetrical medicine from her years in rural practice.
Yes. Members reach Dr. Dunn directly by phone, text, or email. This after-hours access is a core feature of the practice and allows patients to address concerns without waiting for a scheduled visit.
Dr. Dunn practices from a Christian functional medicine framework. She believes the human body is intentionally created with strong capacity for healing and views compassion, dignity, and respect as central to good medical care. She welcomes patients of all backgrounds and beliefs, and her faith informs her commitment to treating the whole person rather than isolated symptoms.
Yes. Dr. Dunn uses InBody scanning to assess body composition in detail. The technology measures skeletal muscle mass, body fat percentage, visceral fat levels, total body water, basal metabolic rate, and grip strength. She uses these results to guide personalized nutrition and treatment planning.
Doctor profile last updated June 8, 2026