About
Dr. Phuong Flanagan is a board-certified internist who trained at the University of Southern California and holds additional certification in aesthetic medicine. Born in Vietnam, she moved to Sacramento, California with her family in 1985. She completed her undergraduate studies at the University of California, Davis before attending medical school at St. George's University.
Dr. Flanagan finished her Internal Medicine residency at USC in 2012 and spent the following years working as a hospitalist, first in Syracuse, New York, then at Naples Community Hospital after relocating to Florida in 2014. She practiced inpatient medicine for over a decade, developing a strong foundation in complex disease management. Her interest in aesthetics grew naturally as she pursued the science of prevention and regenerative care. She launched her aesthetic practice in 2019 and expanded into concierge anti-aging medicine in 2024. Today, her clinical focus spans hormone replacement therapy, longevity medicine, metabolic health, gut health, cognitive performance, and regenerative aesthetics. Her husband, Dr. Glenn Flanagan, runs Naples Regenerative Institute in the same office, giving her patients direct access to non-surgical orthopedic care.
Education & Training
Undergraduate
University of California, Davis
Medical School
St. George's University
Residency
Internal Medicine, University of Southern California (completed 2012)
Additional Training
Additional certification in aesthetic medicine
Certifications
Conditions Treated
Who is Dr. Flanagan right for?
Dr. Flanagan suits adults who want a physician managing both their internal health and aesthetic goals. Patients focused on hormone optimization, metabolic health, or longevity will find her clinical approach well matched to their needs. She also serves those interested in regenerative aesthetics like Sculptra, PRP, and microneedling. Her concierge model works well for patients who value same-day access and direct physician availability.
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Frequently Asked Questions
Dr. Flanagan treats a broad range of internal medicine and preventive health concerns. Her clinical focus includes hormone imbalances, metabolic conditions, gut health, and cognitive performance. She also manages chronic disease and coordinates hospital care when needed.
Yes, Dr. Flanagan holds board certification in Internal Medicine. She also carries additional certification in aesthetic medicine, which supports her work in regenerative treatments and anti-aging care.
Dr. Flanagan attended St. George's University for medical school. She then completed her Internal Medicine residency at the University of Southern California in 2012. She also earned her undergraduate degree at the University of California, Davis.
Dr. Flanagan performs neurotoxin injections including Botox, Xeomin, and Dysport. She also offers dermal fillers, Sculptra, PRP therapy, microneedling with SkinPen, and chemical peels including VI Peel and PRX Derm Perfexion.
Yes, hormone replacement therapy is a central part of Dr. Flanagan's clinical work. She focuses on hormone optimization as part of a broader approach to longevity and metabolic health.
Dr. Flanagan spent over a decade as a hospitalist, first in Syracuse, New York, then at Naples Community Hospital after moving to Florida in 2014. That experience in complex inpatient care shaped her approach to prevention and early intervention.
Yes, Dr. Glenn Flanagan's Naples Regenerative Institute operates in the same office. Patients can access non-surgical orthopedic pain care without leaving the building.
Dr. Flanagan stocks SkinCeuticals and SkinBetter skincare lines in the practice. She also partners with Thorne for medical-grade supplements tailored to her patients' health goals.
Doctor profile last updated March 21, 2026