How can we help?


I want straighter teeth

A straight smile has never been easier to enjoy. Clear plastic trays, known as aligners, can work the magic of braces without the shine of metal.

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I’d Like to replace a missing tooth

Dental implants often give you the best opportunity to enjoy normal chewing and a full smile. We provide long-lasting choices, that are almost like growing new teeth.

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My tooth is broken or decayed

Damaged teeth might seem hopeless, but there's often still a solid foundation that leaves you with beautiful restoration options.

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Welcome to SimpliSmiles

Conveniently located in Hicksville/Plainview, NY, our patients come from the surrounding communities of Syosset, Levittown, and Bethpage to see us. 

We manage all your dental treatment in-house, so you rarely need to see a specialist. From your children’s cleanings and exams to implant dentistry, Invisalign, cosmetic dentistry, root canals, and teeth whitening, we handle it all.  

We hold ourselves to the highest standards of care. Using the latest in dental technology and taking annual continuing education courses allows us to deliver an unparalleled dental experience that is personalized to each patient. 

We provide quality dental care, conveniently in your neighborhood and cater to your schedule by offering evening hours and emergency appointments. Because your comfort is important to us, we offer many of the modern amenities you’ve come to expect in a dental office like a beverage bar in the reception area, TVs in our treatment rooms, and blankets and pillows to make yourself comfortable while we work. 

For our patients with dental anxiety, we offer sedation dentistry. We believe that whatever your dental needs may be, you will be treated with the highest quality dentistry available and with the most compassionate, respectful care you deserve.  

Meet the Dentist


Peter Yelizar, DDS FICOI

After earning a Bachelor of Arts Degree in only three years from Queens College, Dr. Yelizar took a break from the books so that he could travel and explore his passion for photography. He soon returned and earned his Doctoral Degree from New York University College of Dentistry. During his residency at St. Barnabas Hospital, Dr. Yelizar learned to merge his love of science, art, and altruism in order to create gorgeous smiles like those he captured on film during his travels.


Tammy Yelizar, DDS

Tammy Yelizar moved to New York State at the age of fourteen and instantly fell in love with her new hometown. She knew this is where she wanted to start a career as well as a family. Dr. Yelizar attended St. John’s University majoring in Biology and Chemistry on a full scholarship. During her years there, she discovered her hidden love to make people smile and only naturally entered the field of dentistry.


Kind Words From Our Patients

Read reviews from patients of SimpliSmiles & learn what people are saying about our doctors. 

Great doctor. We travel 2 hours to see Dr. Peter. First-class care and reasonable prices. My husband needed a root canal and 4 crowns! Got it all done in 3 visits. Thumbs up.–Marta K. This review was posted on Google

I highly recommend SimpliSmiles to adults & kids. I first started to see Dr. Peter a few years ago and now bring my entire family here. My kids love both Dr. Tammy & Dr. Peter. They are so attentive and compassionate about their work, not to mention gentle too!!! Can’t say enough positive things. –Laura A. This review was posted on Facebook

I have been very scarred of doing my implant surgery. After meeting Dr.Yelizar he walked me through the process and made me feel very comfortable. He made sure I was at ease, the whole process was pain-free and fast. Can’t thank him enough for everything he’s done for me and my oral health. Best dentist, very companionate and he cares about his patients. I highly recommend everyone come to visit him.–Betsy T. This review was posted on Google

Dr. Yelizar and staff are very professional and friendly. The office is clean and organized. Dr. Yelizar communicates/responds in a timely manner, by phone and text messages He explained the problem well and offered several options on how it can be resolved.–Loi A. This review was posted on Google

To make it short and sweet it was clean, comfortable, polite and welcoming staff. My insurance didn't cover what I needed so he gave me a couple of options on how could figure it out... I am bringing my son back and this is my new dentist. Best dental experience ever.–Cheryl S. This review was posted on Google

I highly recommend Dr. Peter Yelizar of SimpliSmiles! I first met him thru his brother, whos an orthodontist. Both of them are simply amazing!! At first, I was very hesitant about getting all the procedures done. (root canal and wisdom tooth removal) but, dr peter was very patient, understanding, knowledgeable in all aspects and also has good bedside manners. I did not feel any pain at all!! Thank you, Dr. Peter!–Cleo D. This review was posted on Google

Dr. Peter Yelizar is a wonderful doctor! For his young age, he is very talented and he made me very happy with my cosmetic smile makeover. His technician Ilya is extremely talented and did a beautiful job with my veneers and I’m very happy!!! Would highly recommend him and his whole team! Thank you again!–Gala W. This review was posted on Google