Farhan Abdullah, DO

Dr. Farhan Abdullah is a board-certified internal medicine physician and the Medical Director of Magnolia Functional Wellness in Southlake, Texas. He brings a rare combination of hospital-based clinical training and specialized certification in functional medicine, hormone therapy, and regenerative protocols — an approach built on diagnosing root causes, not just managing symptoms.

His credentials extend well beyond traditional medical training. Dr. Abdullah holds certifications from the Institute of Functional Medicine (IFM), the Functional Medicine Academy (FMA), the Hormonal Health Institute (HHI) for bioidentical hormone replacement therapy and the R3 Stem Cell Institute for regenerative medicine. Each of these represents dedicated post-graduate clinical training that informs how he evaluates and treats patients at Magnolia.

Dr. Abdullah shares physician-led educational content on hormone optimization and regenerative medicine through his @RegenDoc platform on Instagram, Tiktok, and YouTube.

Dr. Abdullah maintains active hospital privileges as an attending hospitalist at Methodist Dallas Medical Center and Methodist Southlake Medical Center, where he manages complex internal medicine cases across inpatient, post-acute, and rehabilitation settings. This isn’t a background detail — it’s a daily practice that keeps his diagnostic instincts sharp and his understanding of systemic disease current. When he’s evaluating a patient’s hormone panel or designing a TRT protocol, he’s doing it with the clinical judgment of a physician who also manages cardiovascular disease, metabolic syndrome, and multi-system illness in a hospital setting every week.

He also serves as Adjunct Clinical Instructor at UT Southwestern Medical Center and Adjunct Clinical Assistant Professor at TCU and the University of North Texas Health Science Center (UNTHSC) School of Osteopathic Medicine, where he contributes to the training of the next generation of physicians.