State-of-the-Art Dentistry  Serving Families In Orlando Since 1989

Visit Ata Dental Orlando Dentists Who Care About You

Ata Dental waiting room

Ata Dental is a comprehensive cosmetic, restorative, and general dentistry practice with offices in Kissimmee and Orlando, FL. We welcome new and existing patients to get started with us today. Contact Ata Dental online or call either of our offices.

Over 700 5-Star Google Reviews "I completely trust Dr. Ata and his team"


scott stevens

Orlando, FL


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Organized first class staff. They have a modern place with modern equipment. I found everyone to be very nice.

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Julia O

Kissimmee, FL


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I completely trust Dr. Ata and his team to care for my dental needs for more than 20 years. They are professional and always make you feel comfortable. You will always have a winning smile with Dr. Ata and Associates.

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Personalized Care in English and Spanish ¡Hablamos inglés y español! 

Meet Our Dentists


Robert Marx

Omar Ata, DDS

Omar Ata has been a practicing dentist in the greater South Orlando region since 1981. He was one of the first professionals in the area to provide dental restorations using CAD/CAM technology, which has revolutionized the field of restorative dentistry. Dr. Ata actively looks for new ways to improve the quality of treatment and hopes to provide the best dental experience possible.

Robert Marx

Joseph A. Ata, DMD

Dr. Joseph Ata attended Nova Southeastern University College of Dental Medicine and joined the family practice upon graduation in 2008. He has taken over 400 hours of continuing education to further his skills in specialized treatments such as dental implants.


Robert Marx

Ireni Mikhail, DMD

In practice since 2015, Dr. Ireni Mikhail has trained in a wide variety of dental specialties, including endodontics, prosthodontics, and restorative dentistry. Additionally, she can provide specialized treatment for emergency dental conditions as well as for patients with complex medical histories.

Robert Marx

Jill E. Ata, DMD

Dr. Jill Ata graduated from Nova Southeastern University College of Dental Medicine in 2009. She had undergone additional training in orthodontics in order to provide fixed braces and functional orthodontic appliances.


Johana Cobo

Johana Cobo, DDS

Dr. Johana Cobo graduated from Howard University College of Dentistry in Washington, D.C. in 2018.  Committed to lifelong learning, Dr. Cobo frequently participates in continuing education programs, seeking new methods to refine her skills and provide top-tier care to her patients.

Robert Marx

Elizabeth Santiago, DDS

After graduating from Howard University College of Dentistry in 2017, Dr. Elizabeth Santiago earned an Advanced Education in General Dentistry (AEGD) certificate from NYU Langone Hospitals in Springfield, IL. She is fluent in both Spanish and English and hopes to provide highly personalized care to patients at Ata Dental. 

Our Professional Affiliations

American Dental Association
American Academy of Implant Dentistry
Florida Dental Association
International Association for Orthodontics

We Offer a Warranty for Our Care Guaranteed Results or Your Money Back

Our dentists in Kissimmee and Orlando proudly stand behind the quality of work we provide, so we offer a guarantee of workmanship for a range of restorative procedures, including dental crowns, dental implants, fillings, and root canal therapy.

If your dental work fails before the warrantied date and you have been following the care plan agreed upon with your dentist, we will issue a full refund or account credit towards a future treatment. 

dentist and patient shaking hands

We trust our patients and offer these guarantees in good faith. Feel free to explore our full warranty policy online. You can also give either of our offices a call for more details. 

Ready to book an appointment with one of our skilled and welcoming dentists? All you have to do is send us an online message or call us in Orlando and Kissimmee, FL, at:

(407) 857-6501

"Ata Dental is simply amazing."

"The office itself is sleek, modern, and hygienically spotless! Everyone from the front desk to the dental assistants and hygienists make you feel so welcome. They are prompt to get you seated and provide the best dental care. I highly recommend this practice for all your dental needs!" Carol Stein, 5-Star Review, 2022

Featured Services

Dental Crowns

Dental Crown in Forceps

Dental crowns are an effective solution for many common health and cosmetic tooth conditions. Now, thanks to state-of-the-art CEREC technology, we can restore a damaged tooth in a single office visit.

Dental Implants

Dental Implants

Repair missing teeth and protect your oral health with dental implants. Implant-supported restorations are the gold standard in restorative dentistry, providing the same function and stability as natural teeth.

Emergency Dentistry

Woman Holding her Jaw in Pain

Some dental problems cannot wait until your next checkup. In the event of a dental emergency, you can contact our office for specialized care without delay.

Root Canal Therapy

Interior Diagram of Tooth in Need of a Root Canal

When decay reaches the inner layer of a tooth, you are at risk for serious oral health complications. Root canal therapy eliminates tooth infection and can even prevent the need for extractions.

Cosmetic Dentistry

Smiling Man while Doctor Chooses Veneer Color Match

Enhance your natural beauty and feel more confident with custom cosmetic dentistry. Our team offers a wide selection of cosmetic treatments, including porcelain veneers, cosmetic crowns, clear orthodontic aligners, and more. Get started on your smile makeover at Ata Dental today!

Do You Work With Kids?


Yes! We welcome patients of all ages, including young children. Our dentists use a gentle touch and friendly, clear language so kids can feel comfortable and empowered about their oral health. Both our Orlando office and Kissimmee office close at 5:00pm Monday through Thursday, so after-school appointments are easy. The fact that we have several dentists on the team at both locations makes it easy for families to complete multiple appointments at once.

Check Out Our Real Patient Results Beautiful Smiles From Skilled Dentists

Ata Dental patient Before Crowns and Veneers
Before Crowns and Veneers This patient's top teeth were worn down, discolored, and gapped. He was ready for a smile upgrade, so he visited the team at Ata Dental.
Ata Dental patient After Crowns and Veneers
After Crowns and Veneers Our dentists used a series of customized porcelain crowns and veneers to give his teeth a whiter and more even appearance he can be proud to show off. 

Do You Suffer From Dental Anxiety? ​Sedation Can Make a Big Difference

We believe all patients should feel comfortable at the dentist's office. If fear or nervousness is standing in between you and your treatment, consider sedation dentistry. Sedation can help patients with moderate to severe dental anxiety overcome the discomfort of treatment. Depending on your needs, we can offer nitrous oxide or oral conscious sedation options.

If you are interested in learning more, please contact our dental offices in Orlando and Kissimmee, FL

"Highly recommend this office."


Laura Wozniak

Orlando, FL


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My first visit was a great experience from friendly staff, well organized, and thorough assessments from Dentist. My past experiences have led me to not go to the dentist. Highly recommend this office.

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Victoria Schultz

Orlando, FL


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I had a great experience at ATA Dental today! Everyone was efficient, professional, and caring about my well-being and experience. The initial exam was very thorough, with every detail explained with the X-rays. I have sensitive gums but there was no pain at all. I feel very confident that they will solve all my dental needs in the future.

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Join Our Membership Program For a Discount

No dental insurance? Our in-house membership plan is for you! Our plans include preventive care and save you money on other procedures. Enroll in 90 seconds and receive instant access.

Do You Need Financing for your dental treatment?

Click below to apply for CareCredit today. We offer plans with terms up to 60 months with no interest if your balance is paid in full within one year.


Ata Dental Team

Ata Dental

The team at Ata Dental welcomes you to our high-tech practice with locations in Orlando and Kissimmee, FL. Our goal is to provide a more enjoyable experience at the dentist's office for patients of all ages. Our professional affiliations include:

  • American Academy of Implant Dentistry
  • American Dental Association
  • Central Florida District Dental Association
  • Florida Dental Association
  • International Association for Orthodontics

You can schedule a consultation with us today by filling out our form or by calling (407) 857-6501.

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