134 Registry Blvd.
St. Augustine, FL 32092
(904) 940-5757
General Dentistry
Dental Implants
Sleep Apnea
Cone Beam

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Dr. Alexander III, DMD
Owner/General Dentist

Dr. James Alexander grew up just a few miles from Saint Augustine. As a child, he enjoyed a range of activities, including soccer, baseball, football, tennis, BMX racing, and music. Although he graduated near the top of his class, he joined the United States Marine Corps at a time when most of his friends were making plans for college. The Marine Corps helped mold Dr. Alexander into the man he is today.

After serving, he attended Jacksonville University, graduating summa cum laude with a 4.0 and a bachelor’s degree in biology. Following that, he earned his DMD from the University of Florida College of Dentistry.

In the years since, he has continued to learn, amassing an amazing 343 hours of continuing education in his first year after dental school alone. He has trained in endodontics, attended the Nash Institute, and completed the prestigious Implant Maxicourse in New York City.

Dr. Alexander is currently a member of the:

  • American Dental Association
  • Florida Dental Association
  • Academy of General Dentistry
  • American Academy of Implant Dentistry
  • American Board of Dental Sleep Medicine

Today, Dr. Alexander lives in the community with his beautiful wife and three wonderful kids.  In the time he has been in practice, he has developed a truly unique perspective on caring for patients. Everyone is treated equally, regardless of age, background, or particular insurance plan. He strives to provide old-fashioned customer service, with special attention provided to each patient. Dr. Alexander practices with a single motto in mind: “Do what is right for the patient, and everything else will follow.”


Chelsea Derbaum, DMD
Associate Dentist


Dr. Derbaum is from Clearwater, FL, but she now resides right here in World Golf Village! She earned her Bachelors in Microbiology & Molecular Biology from UCF & then went on to receive her DMD from the UF College of Dentistry. After finishing school, she completed a 1-year Advanced Education in General Dentistry program & has since received advanced training in Esthetics & Invisalign treatment. Dr Derbaum says, “It’s obvious from the way our team interacts with one another & with patients that this is truly a practice where doing the right thing is prioritized.” She goes on to say, “It’s great to have a state-of-the-art practice, with excellent materials & technology to allow me to do what I love most.” Dr. Derbaum enjoys getting to know her patients & working with them to achieve healthy & beautiful smiles. When not at work, she loves being creative by crafting & baking. She stays active by kickboxing & hiking & taking day trips with her husband to visit friends & family.

134 Registry Blvd. , St. Augustine, FL 32092 USA
James Alexander III, DMD St. Augustine, FL general, cosmetic, restorative, and implant dentist. info@alexanderdental.com