
Welcome to NEFEDA St. Johns!
Where Compassion Meets Convenience.
Comfortable, Neighborhood-Focused Care
At NEFEDA’s St. Johns location just off State Road 210, our team is dedicated to bringing you expert endocrinology and diabetes care you can count on, right in your own neighborhood.
Our St. Johns office is designed with your comfort and convenience in mind. From easy, abundant parking to a friendly waiting area and especially our compassionate care team, we want every visit to feel like you’re coming home.
Experienced and Caring Providers
Dr. Raquel Villavicencio and Dr. Firas Warda are accepting patients at our St. Johns location. These two highly skilled physicians committed to delivering the most advanced treatments while practicing patient-centered medicine. Their dedication shines through in every consultation, ensuring that you feel heard, supported, and empowered to manage your health.
What We Offer at NEFEDA St. Johns
Diabetes Management
Effective, personalized diabetes care focused on blood sugar control, complication prevention, and long-term health.
Thyroid Disorders & Hormone Regulation
Expert diagnosis and treatment for thyroid disease and hormone imbalance to restore energy, mood, and metabolic function.
Endocrine Health & Metabolic Care
Comprehensive evaluation and treatment for adrenal, pituitary, and metabolic disorders to optimize overall endocrine health.
Medically-Guided Weight Loss
Endocrine-based obesity and weight-loss management solutions using proven therapies, nutrition guidance, and sustainable lifestyle support.
Long-Term Disease Education & Management
Clear education, ongoing support, and proactive monitoring to help patients manage chronic endocrine conditions with confidence.
Patient-Centered, Responsive Care
No matter your health journey or stage — whether newly diagnosed or managing a long-term condition — we meet you where you are and help you take every step forward.
What Our Customers Are Saying
Your Partners in Hormone and Metabolic Wellness
Raquel Villavicencio, M.D.
Dr. Raquel Villavicencio is triple-board-certified in Endocrinology, Internal Medicine, and Obesity Medicine. Prior to her current role, she served as a primary care physician, hospitalist, and preoperative assessment practitioner. Dr. Villavicencio is a member of the Endocrine Society and the Menopause Society. She also earned a Certificate in Comprehensive Care for Persons with Diabetes from the Endocrine Society and is a certified Prevent T2 lifestyle coach. Dr. Villavicencio speaks both English and Spanish.
Firas Warda, M.D.
Dr. Firas Warda was born in Syria, moving to Jacksonville, Florida in 2005. He earned his medical degree from St. George’s University School of Medicine. Dr. Warda completed training in Internal Medicine and Endocrine at the University of Florida College of Medicine, Jacksonville. Dr. Warda is an active contributor to clinical research at UF. He has also presented at national endocrinology conferences and has published numerous papers in national and international journals. Dr. Warda is known for providing compassionate care.
Get in touch
St. Johns Office
300 Saint Elizabeth Way Suite 160
St. Johns, FL 32259
300 Saint Elizabeth Way Suite 160
St. Johns, FL 32259
Fax: 904-486-2314
NEFEDA Office Hours
Monday – Thursday
8:00am – 5:00pm
Friday
8:00am – 4:00pm
Reach Out to NEFEDA Today.
NEW PATIENTS:
Please call us at 904-384-2240 to request an appointment.
EXISTING PATIENTS:
Please use our Patient Portal to request appointments or refills, pay a bill or send us a message. First-time users, signup for portal registration below. *All fields are required.
NEFEDA's CareTeam Superstars


