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e.s.i. Healthy Dentistry

Welcome to e.s.i. Healthy Dentistry

Experience tranquility & exceptional care.

Holistic, advanced dentistry in Smithtown, led by Dr. Kilimitzoglou and Dr. Patrie. From routine care to implants, cosmetic, and sedation dentistry — welcome to the family.

  • Led by Dr. Kilimitzoglou & Dr. Patrie
  • Holistic, integrative approach
  • New patients welcome
Holistic, integrative careEvery specialty, one locationGentle care for childrenSpa-like comfort, always

Take a look around

Tour the practice.

Step inside our Smithtown office — from the cascading waterfall in reception to treatment rooms designed around your comfort.

About our practice

Our services

Everything your smile needs.

From a child’s first checkup to a complete smile makeover — every kind of care lives here, delivered in a serene, spa-like environment.

Comprehensive Dentistry at e.s.i. Healthy Dentistry
01

Comprehensive Dentistry

Complete dental care for your healthiest, brightest smile yet.

  • CEREC® same-day crowns
  • Laser treatments and digital imaging
  • A dental home for the whole family
Learn more
Cosmetic Dentistry at e.s.i. Healthy Dentistry
02

Cosmetic Dentistry

Transforming smiles with precision and care in cosmetic dentistry.

  • Porcelain veneers and bonding
  • Zoom!® whitening in under an hour
  • Complete smile makeovers
Learn more
Dental Implants at e.s.i. Healthy Dentistry
03

Dental Implants

Restore your smile confidently with our precision dental implants.

  • Teeth-in-an-Hour™ with Noble Guide™
  • Single implants to complex cases
  • Sinus augmentation expertise
Learn more
Sedation Dentistry at e.s.i. Healthy Dentistry
04

Sedation Dentistry

Experience stress-free dental visits with our sedation dentistry options.

  • Oral sedatives and nitrous oxide
  • IV sedation for deeper comfort
  • Warm neck wraps, blankets, and TVs
Learn more
Invisalign at e.s.i. Healthy Dentistry
05

Invisalign

Transform your smile discreetly with Invisalign's clear aligners.

  • Virtually invisible, removable aligners
  • Custom trays from digital impressions
  • Fewer office visits required
Learn more
Restorative Dentistry at e.s.i. Healthy Dentistry
06

Restorative Dentistry

Revitalize your smile with expert restorative dentistry at e.s.i. Healthy Dentistry.

  • Complete mouth restoration
  • Biologic root canals with laser and ozone
  • Soft tissue and bone grafting
Learn more
Wisdom Tooth Extraction at e.s.i. Healthy Dentistry
07

Wisdom Tooth Extraction

Safely remove wisdom teeth with comfortable, sedated procedures.

  • Panoramic X-rays and 3D scans
  • IV sedation or local anesthesia
  • Faster healing at the ideal age
Learn more
Children's Dentistry at e.s.i. Healthy Dentistry
08

Children's Dentistry

Creating bright smiles for every stage of childhood.

  • Our cavity-free guarantee
  • Gentle, child-specific sedation
  • Early hygiene habits and education
Learn more

Appointments

Booking made easy.

Whether it’s your first visit or your next checkup, scheduling with us is simple.

New patients

Welcome to the family.

Your first visit is unhurried and comfortable. Complete your new patient form securely online, and we’ll take care of the rest.

Existing patients

Schedule your next visit.

Due for a cleaning or follow-up? Send us an inquiry — or update your medical history before you arrive — and we’ll confirm by phone.

Prefer to talk? Call us at(631) 979-7991

Meet your dentists

The experts behind your smile.

Portrait of Dr. Dimitrios “Jimmy” Kilimitzoglou

Dr. Dimitrios “Jimmy” Kilimitzoglou

DDS, DABOI, MAGD, FAAID, FICOI, FDOCS, FACD, FICD, FPFA

  • Diplomat, American Board of Oral Implantology

    One of nine board credentials and fellowships earned across implant, general, and cosmetic dentistry.

  • Associate Clinical Professor at Stony Brook

    Shaping the next generation of dentists, with endowed awards that carry his name.

  • Humanitarian at heart

    Leads dental missions that bring free care to underserved communities around the world.

More about Dr. K
Portrait of Dr. Thomas Patrie

Dr. Thomas Patrie

DDS, NMD, IBDM

  • Board-certified Naturopathic Medical Doctor

    Integrative Biologic Dental Medicine — where oral health meets whole-body wellness.

  • SMART-certified by the IAOMT

    Safe mercury amalgam removal with rigorous protective protocols.

  • Stony Brook educator and former chief resident

    Comprehensive treatment planning, implant prosthetics, and advanced endodontics.

More about Dr. Patrie

By the numbers

A standard you can count on.

20+

Years of advanced dentistry on Long Island.

9

Board credentials and fellowships after Dr. K’s name.

8

Specialties delivered under one roof.

5★

Rated by our patients on Google.

Why patients choose us

Exceptional care, made simple.

Holistic, integrative care

The mouth is a mirror and a gateway to the body. We combine Eastern and Western perspectives, biocompatible materials, and prevention-first thinking.

A spa, not a clinic

A cascading waterfall in reception, warm neck wraps, cozy blankets, and in-room TVs. Dentistry that feels like a retreat.

Advanced technology

CEREC® same-day restorations, laser dentistry, 3D cone beam imaging, and Noble Guide™ precision implant placement.

Comfort and sedation

Advanced care that feels calm.

Dental visits should feel reassuring, not stressful. Even the most anxious patients receive the care they need in complete comfort.

  • Sedation tailored to you

    Oral sedatives, nitrous oxide, and IV sedation — matched to your procedure and your comfort level.

  • Gentle with anxious patients

    Empathetic care for dental phobias, starting with an unhurried consultation to plan what works for you.

  • Child-specific options

    Gentle, non-invasive methods and pediatric sedation for comfortable, anxiety-free visits.

Explore sedation dentistry
A patient relaxing during sedation dentistry at e.s.i. Healthy Dentistry

The holistic difference

Integrative dentistry, in practice.

Cutting-edge technology in service of whole-body health — every material and method chosen with care.

Ozone Therapy

Naturally neutralizes bacteria, viruses, and fungi without harming healthy cells.

Laser Dentistry

Multiple modalities for periodontal care and biologic root canal therapy.

SMART Amalgam Removal

IAOMT-certified safe mercury removal with full protective protocol.

CEREC® Restorations

Same-day ceramic onlays and crowns, designed and milled in-house.

Biocompatible Materials

BPA-free composites, night guards, and retainers chosen for whole-body health.

3D Cone Beam Imaging

Precise, low-radiation diagnostics for implants and extractions.

Learn more in our FAQ

Testimonials

Every smile tells a story.

See more reviews
“From the moment you walk in, you're met with warm and helpful staff. There was no wait time, the office was clean, and they made my treatment affordable. Dr. Patrie was so patient and kind — he explained everything clearly and did an amazing job.”
Angela O.Google review
“Dr. K and the entire staff at ESI Healthy Dentistry treat me with kindness, compassion and excellent dental care. From pain-free cleanings from Ana and Jackie to impeccable restoration work from Dr. K., I trust that my teeth are always in good hands.”
Carolyn B.Google review
“I drive from Stamford, CT to Dr. K and this group. I have never had a dentist as incredibly caring, capable, painless, and up-to-date on everything. I am now 80 and still driving from Connecticut to Smithtown.”
Gail G.Google review
“Dr. K and his staff always go out of their way to make sure you are comfortable and keep you informed throughout the whole visit. The office is always so clean and all the equipment is updated and state of the art. You will feel completely at ease.”
Helen B.Google review

We believe strongly in the continuous pursuit of knowledge and in providing exceptional care to our patients and community.

Dr. Dimitrios “Jimmy” Kilimitzoglou

e.s.i. Healthy Dentistry

Common questions

Answers before you ask.

Read all FAQs
What makes your office different from other offices?

We offer an integrative holistic approach to your dental care, utilizing the latest in cutting edge dental technology. Services we can provide include: 3D cone beam scans, digital dental scanning, same day ceramic onlays and crowns, ozone therapy, multiple modalities of laser dentistry, intravenous sedation, dental restorative materials carefully chosen for biocompatibility and Invisalign or clear aligner orthodontic treatment.

Do you take dental insurance?

We are a fee for service practice so we are unable to accept insurance as payment but we are more than happy to submit all paperwork to your insurance company so you can get reimbursement. Please check with your insurance company that you are able to see an out of network dentist.

Do you treat patients with dental phobias?

Yes, we are very sensitive to those who may have fears about going to the dentist. Our doctors and staff are very empathetic to those with dental phobias. We offer many different ways we can help you through dental treatment, including sedation dentistry. We suggest your first appointment be a consultation so we can go over all the options that will be best for your needs.

How safe are dental x-rays?

Dental x-rays have a low exposure of radiation. The typical dental checkup x-ray is the equivalent of 5 minutes on an airplane or walking for 5 minutes on a sunny day. With dental x-rays, the beam is collimated and focused only on a very small target area, so the margin of safety is better. At this office we use digital x-rays instead of developing them on film, which minimizes the risk from radiation by more than 90%. We also require the patient to wear a shield to protect your organs from unnecessary radiation, specifically the thyroid. If a patient is pregnant, we prefer to avoid all types of x-rays at least until the 3rd trimester, unless it is a dental or medical emergency.

How are you holistic?

We combine Eastern and Western aspects of wellness. We encourage healthy diets among patients to prevent deterioration of teeth. We use ozonated water that kills bacteria during procedures such as root canal therapy, and a laser for periodontal and root canal therapy for a less invasive procedure. We have a careful protocol for amalgam removals, and we use BPA-free materials for restorations, night guards, and retainers. We recognize that the mouth is both a mirror and a gateway to the body: it can show us systemic health issues and simultaneously contribute to or cause systemic health problems. Our goal is to help you attain better health.

Ready when you are

Your best smile starts here.

Book a visit and see how good dental care can feel. New patients, families, and referrals are always welcome.