About
Dr. Felecia Sumner, DO is a board-certified family medicine physician and the founder of Synergize DPC in Lansdowne, PA. She earned her bachelor's degree with honors in biology and pre-medicine from Saint Joseph's University in Philadelphia. She then completed her medical degree at Philadelphia College of Osteopathic Medicine. Her Family Medicine residency at Crozer-Keystone in Delaware County earned her recognition for dedication to the community. After residency, she built clinical experience across urban and suburban Philadelphia, Delaware County, and rural Georgia, treating patients from newborns to the elderly.
Dr. Sumner's personal health journey shaped her clinical focus. After her own diagnoses of pre-diabetes and adrenal-type PCOS, she resolved her symptoms through functional medicine, dietary intervention, DUTCH hormone testing, and targeted nutrient therapy. That experience deepened her passion for identifying root causes rather than managing symptoms. She holds training in integrative and functional medicine and leads her signature 12-Week Happy Healthy Hormone Program. She also practices Osteopathic Manipulative Treatment and brings expertise in medical weight loss, sports medicine, and pediatric through geriatric care. A Philadelphia native, Dr. Sumner is married with three children. She practices yoga three to four times a week and prioritizes sleep as a non-negotiable part of her own wellness.
Education & Training
Undergraduate
Bachelor's degree with honors in biology/pre-medicine, Saint Joseph's University, Philadelphia, PA
Medical School
Philadelphia College of Osteopathic Medicine
Residency
Family Medicine residency, Crozer-Keystone, Delaware County, PA
Additional Training
Training in integrative and functional medicine
Certifications
Conditions Treated
Who is Dr. Sumner right for?
Dr. Sumner is a strong fit for patients across all age groups, from newborns to older adults. Adults managing chronic conditions like pre-diabetes, PCOS, or hormone imbalances benefit from her root-cause functional medicine approach. Patients who want a physician versed in both conventional and integrative methods will find her clinical range valuable. She also serves families well, covering pediatric, adult, and geriatric needs under one roof. Those seeking proactive hormone evaluation through the 12-Week Happy Healthy Hormone Program are well-suited to her practice.
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Frequently Asked Questions
Dr. Sumner treats a broad range of conditions across all life stages. Her focus areas include chronic disease management, hormone imbalances, pre-diabetes, PCOS, and metabolic concerns. She also addresses acute illnesses, mental health, sports injuries, and pediatric and geriatric conditions.
Yes, Dr. Sumner holds board certification in family medicine. She also holds training in integrative and functional medicine and practices Osteopathic Manipulative Treatment.
Dr. Sumner earned her medical degree from Philadelphia College of Osteopathic Medicine. She completed her Family Medicine residency at Crozer-Keystone in Delaware County, PA, where she received recognition for her dedication to the community.
Dr. Sumner leads this signature program for patients dealing with hormone imbalances. It uses DUTCH Testing for detailed hormone analysis and pairs results with targeted interventions. Her own experience resolving pre-diabetes and adrenal-type PCOS through functional medicine directly shaped this program.
Yes, Dr. Sumner performs Osteopathic Manipulative Treatment as part of her clinical services. OMT is one of several hands-on modalities she offers alongside conventional and functional medicine approaches.
Dr. Sumner focuses on identifying root causes rather than managing symptoms alone. She draws on functional medicine, DUTCH hormone testing, dietary intervention, and targeted nutrient therapy. Her own health journey with pre-diabetes and PCOS informs this method directly.
Yes, Dr. Sumner cares for patients from newborns through geriatrics. She built experience across urban, suburban, and rural settings treating patients at every life stage. Families can enroll members of all ages under one membership.
Yes, Dr. Sumner performs DOT exams and pre-operative clearance exams at Synergize DPC. These services are available to both members and, depending on the service, non-members seeking specific occupational or surgical evaluations.
Doctor profile last updated March 21, 2026