About the practice
About Castelli Chiropractic Center
Castelli Chiropractic Center helps Jacksonville patients understand their options through individualized evaluation, thoughtful communication, and care recommendations shaped around real-life goals.
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Personalized Care. Clear Guidance. A Stronger Path Forward.
Our mission
Care you understand
Our mission is to help patients feel informed, supported, and confident in their care decisions. We combine individualized evaluation, clear education, and practical recommendations designed around each patient's needs and goals.
- Education comes first. When you understand what the examination found and why a recommendation was made, it is easier to decide what is right for you.
- Care is individual. Two people who describe similar discomfort often need very different plans, and recommendations follow the evaluation rather than a fixed routine.
- Quality of life is the measure. Progress is discussed in terms of the everyday activities that matter to you, not a promised outcome.
Our story
An independent practice on Beach Blvd
Castelli Chiropractic Center is an independent, doctor-owned chiropractic practice on Beach Blvd in Jacksonville, Florida. Dr. Sebastian T. Castelli owns the practice and personally performs chiropractic evaluations and adjustments here.
The office was built around a simple idea: people do better when someone takes the time to examine them carefully, explain what was found in plain language, and describe the realistic options — including the option to do nothing yet, or to be referred elsewhere.
Alongside everyday chiropractic care, the practice offers conservative and non-surgical options such as Shockwave Therapy, spinal decompression, therapeutic exercise, massage therapy, and in-office diagnostic evaluation, so that a plan can be matched to what the examination actually shows.
Patients here are largely Jacksonville neighbors: people who sit at a desk all week, parents lifting children, weekend athletes, and people recovering after a car accident. The practice is built around that everyday, active life rather than a single narrow specialty.
How we practice
Eight principles behind every visit
These are the commitments we hold ourselves to, from the first phone call through your report of findings.
Listen first
Your visit begins with your history and what you are actually experiencing day to day — not a form-driven script.
Evaluate individually
Findings come from your own examination. Recommendations depend on what that examination shows.
Explain clearly
You should be able to repeat back what was found and why a particular option was suggested, in everyday language.
Recommend responsibly
Care is suggested when the evaluation supports it. Not every person who comes in is a candidate for every option.
Respect your decisions
You decide what to move forward with, at what pace, and you can ask questions or pause at any point.
Coordinate or refer
When a concern falls outside chiropractic care, the appropriate next step is a referral or coordination with your other providers.
Support practical goals
Progress is discussed around the things you want to get back to: sleeping, lifting, working, walking, training.
Set realistic expectations
Results vary from person to person, and no outcome is guaranteed. We would rather be accurate with you than optimistic.
Our approach to evaluation
What an individual evaluation actually involves
Recommendations follow the examination. Nothing is prescribed from a symptom label alone.
- 01
A conversation about your history
What you are feeling, when it started, what makes it better or worse, and what you are trying to get back to.
- 02
A hands-on examination
Movement, posture, and orthopedic and neurological screening appropriate to what you describe.
- 03
Imaging only when indicated
X-rays or review of outside imaging are considered when the examination suggests they would change the plan.
- 04
A plain-language report of findings
What was found, what it may mean, the options available, and the option of referral if that is the better route.
Meet your chiropractor
Dr. Sebastian T. Castelli
Dr. Castelli owns Castelli Chiropractic Center and personally evaluates and treats the patients who come through the door. His approach starts with an individual examination and a clear explanation of what it found.
Education
Qualifications behind your evaluation
Doctor of Chiropractic
Life University, Marietta, GA · 2000–2004
BA, Psychology (pre-med)
State University of New York at Albany, Albany, NY · 1996–2000
The coursework listed above reflects postgraduate and continuing education Dr. Castelli has completed. Completing a course is not the same as holding a board certification or a medical specialization, and it is not described as one here.
The team
A small office, familiar faces
You are seen in one location by a small team, so the person answering the phone is the person who will greet you at the door.
The office
What the practice environment is like
- A single, familiar office on Beach Blvd — you are seen in the same place by the same doctor.
- Treatment space arranged for hands-on chiropractic care, therapy, and in-office evaluation.
- Free of pressure: you will not be asked to commit to anything before the findings are explained.
A single Jacksonville office
12187 Beach Blvd #1Jacksonville, FL 32246Get directions to the Beach Blvd office
Office hours
- Monday – Wednesday
- 9:00am – 12:30pm, 2:00pm – 6:00pm
- Thursday
- 10:00am – 1:00pm, 3:00pm – 7:00pm
- Friday
- By appointment
- Saturday – Sunday
- Closed
Jacksonville
Part of the neighborhood
The office sits on Beach Blvd between the Southside and the Beaches, and serves patients from across Jacksonville — Southside, Intracoastal West, Baymeadows, Arlington, Mandarin, and the Beaches communities. Dr. Castelli lives and raises his family here, and the practice is run like a neighborhood office rather than a chain clinic.
In patients' words
What people have said publicly
“Such a friendly and understanding staff. Dr Castelli, Ashley and Rachel work seamlessly as a team making me feel comfortable and optimistic. I am grateful I am now in caring hands.”
Gary Fuller · via Google
“Extremely knowledgeable. They really listen to their patients. My back feels incredible. I highly recommend them”
Richele Drager · via Google
“The attention from the X-ray technician and the doctor was very kind. They were patient because I don't speak English, and they used the technical means to make themselves understood very well. Thank you very much.”
Alejandro Orozco Luna · via Google
Testimonials reflect individual experiences. Results vary, and no outcome can be guaranteed.
Read patient reviewsKeep exploring
Where to go next
Meet Dr. Sebastian T. Castelli
Education, training and how he approaches an evaluation.
Meet the team
Who supports your scheduling, paperwork and first visit.
Read patient reviews
Experiences shared publicly by Jacksonville patients.
Plan your first visit
What to bring, what to expect and how long to allow.
Browse treatments
Chiropractic care, Shockwave Therapy, spinal decompression and more.
Explore conditions and concerns
Back and neck discomfort, headaches, sciatica-like symptoms and more.
The information on this website is provided for general education only and is not individualized medical advice, diagnosis or treatment. Care recommendations are based on an individual evaluation, and results vary from patient to patient. This website does not provide emergency care. If you are experiencing a medical emergency, call 911.
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Ready to be evaluated as an individual?
Book a new-patient visit online, or call or text the office and we will help you find a time.
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