Trusted, gentle dental care for every stage of life — from routine cleanings to cosmetic smile transformations and same-day emergencies.
Nearly 200 Local Reviews
for nearly 20 years
¡Hablamos Español!
We take the time to listen, evaluate, and explain your treatment options clearly — so you always feel informed and confident in your care.
From modern techniques to a calm, welcoming environment, our focus is on making every visit as comfortable and stress-free as possible.
Preventive, cosmetic, orthodontic, and emergency dentistry — all coordinated by a trusted, experienced team.
Our team of doctors is standing by to help with all types of dental emergencies: broken teeth, excruciating pain, emergency extractions, and many others. We have you covered.
Dr. Lisa Mangiarelli and Dr. David Beltran aren’t just partners in life — they’re partners in creating healthy, confident smiles. For nearly two decades, they’ve proudly served Kissimmee families with personalized dental care built on trust, compassion, and long-term relationships.
As a husband-and-wife team, they understand the importance of family. That’s why every patient is treated with the same care and respect they would give their own.
We live here. We raise our kids here. We care for our neighbors here.





Whether you’re here for routine preventive care or a complete smile transformation, our team offers comprehensive solutions designed around your comfort, health, and long-term results.
Enhance the smile you already have.
From veneers and crowns to smile makeovers and dental implants, our cosmetic treatments are designed to help you look and feel your best — with natural-looking, lasting results.
Our bilingual team of experienced dental professionals works together to deliver consistent, high-quality care — all under one roof. From preventive visits to complex treatments, you’ll always see familiar faces who know your smile.
¡Hablamos español!
Dr. David Beltran, a board-certified periodontist, combines advanced surgical expertise with a human touch to create healthy, lasting smiles.
Dr. Lisa Mangiarelli, orthodontic specialist, combines precision and artistry to create beautiful smiles for children, teens, and adults.
Nearly 200 Google reviews with a perfect 5.0 average rating
EXCELLENT Based on 204 reviews Posted on Google Serge ReneTrustindex verifies that the original source of the review is Google. It is with great pleasure that I submit a review of my experience with the Smile Doctors in Kissimmee. On March 24, 2026, I visited the office for a routine teeth cleaning. Upon entering the office, I was immediately greeted by the warm and welcoming staff. The dental hygienist exhibited exceptional professionalism and a positive attitude, providing gentle care while thoroughly explaining each step of the process. The cleaning was a success, and I subsequently proceeded to the checkout counter, where I scheduled a follow-up appointment for additional treatment. Throughout my entire visit, I was treated with the utmost respect and made to feel like a valued patient. I wholeheartedly endorse the Smile Doctors for all dental needs.Posted on Google JamieTrustindex verifies that the original source of the review is Google. I’ve had two separate oral surgeries with Dr. Beltran both with IV sedation, and both experiences went well. I had an implant placed as well as a sinus lift, I healed much faster than I expected with very minimal pain which surprised me. Dr. Beltran himself is kind, professional, and has a very caring bedside manner. He took the time to answer all of my questions and so did the girls at the front desk. They’re all very welcoming and friendly from the moment you walk in. Going to the dentist is never fun, but since you have to go this is the place to be. I recommend this office to my friends and family all the time and I take my two teens here as well. It’s very convenient that you can see the dentist, an oral surgeon and an orthodontist all under one roof. I’ve also had a good experience with the dentist Dr. Wirth and my hygienist Kay-Kay, I believe they call her. She was incredibly kind and patient with me during my deep cleaning. I really hope to have her again for my next cleaning. The office itself is beautiful and very clean. I never thought I’d be giving a dentist a five star review because I’m terrified of the dentist, but here we are 😂Posted on Google Roger HillTrustindex verifies that the original source of the review is Google. All excellent!Posted on Google Miguel MarinTrustindex verifies that the original source of the review is Google. Excellent attendance ,very professional .Posted on Google Ipcia FigueroaTrustindex verifies that the original source of the review is Google. Excelente trabajoPosted on Google Pablo RodriguezTrustindex verifies that the original source of the review is Google. Jennifer que se ocupa de la limpieza dental! Ella es increíble! Muy amable! Amorosa una paciencia infinita! Es la única consistente con el tratamiento! Pablo 08/25/25
5.0 rating from 199 reviews

I come here for my general dentistry, periodontal care, and orthodontics, and I wouldn’t trust anyone else with my dental health. I first started seeing Dr. Beltran for a periodontal issue, and since then, I’ve transitioned all of my care to this office. From routine periodontal maintenance to general dental visits and orthodontic treatment, every experience has been exceptional. I’m beyond grateful to be under the care of Dr. Beltran, Dr. Mangiarelli, and Dr. Mariano—they are truly amazing.

Dr. Wirth is very professional and kind. They have the best staff in Kissimmee especially Vanessa, Lily, Suly, and Sara always willing to help and answer any question anytime. Thank you again for everything!

Beltran Peridontics is the best! I highly recommend their office. Dr Beltran and the other dentists I’ve worked with are excellent. Giselle and Jen are awesome dental hygienist! The front desk is professional and pleasant and make you feel welcomed. And the office is spotless, bright, modern and they have all the latest technology to care for all your dental needs.

I highly recommend this Dental practice . Extremely professional and attentive to their patients needs. Dr.De La Riva was thorough and very kind , this office , providers and staff are the best . Keep up the good work . I refer all my friends and family to this office .
Explore the numerous cosmetic treatments our team of specialists can provide for you. Veneers, crowns, and dental implants offer multiple solutions to achieve the best version of you.

Our dental hygiene specialists are equipped with the latest technology to keep your smile as clean and white as possible!
Have another question? Please contact our team!
Most patients benefit from cleanings every six months to maintain healthy teeth and gums.
Yes — professional whitening is safe and effective when supervised by a dental professional.
Absolutely. Veneers, bonding, and crowns are excellent options for improving shape and symmetry.
With proper care and occasional touch-ups, results can last months to years.
In-office whitening delivers faster, more dramatic results, while at-home kits offer gradual improvement.