Welcome to Our Practice

Welcome to Altmark Kidz Dentistry, Your Dentist in Commack, NY

Welcome! The dental professionals at Altmark Kidz Dentistry are pleased to welcome you to our practice. We want all our patients to be informed decision makers and fully understand any health issues you face. That's why we've developed a website loaded with valuable information about dental problems and treatments. We encourage you to visit this site whenever you have concern about your teeth.

Our website also provides you with background about our staff, office hours, insurance policies, appointment procedures, directions to our office and other useful information. We know how hectic life can be and are committed to making our practice convenient and accessible. We want you to feel confident that you're working with doctors and other professionals who are qualified, experienced and caring.

Please take a few moments to look through this site to get a better feel for Altmark Kidz Dentistry's capabilities and services. We also invite you to email or call our office at any time to request an appointment or ask any questions. Thank you.

  • We strive to treat even even the most fearful kids with TLC and can provide laughing gas and treatment under general anesthesia, if necessary.
  • We treat patients under general anesthesia at Catherine of Sienna Medical Center in Smithtown.
  • We treat special needs patients and we offer nitrous oxide (laughing gas).

Contact Us

Meet The Doctor

  • Dr. Jonathan Altmark

    Dr. Jonathan Altmark has been in practice for over 20 years. His main goal is to provide quality dental care to all children regardless of how scared they may be!

Testimonials

    My daughter has been coming here for a few years and I love her dentist. He is very patient and nice. I wouldn't go anywhere else.

    L.R.

    Outstanding service!! Super nice and friendly. Always clean and never experienced issues! Definitely recommend it!!

    A.G.

    Highly recommend this office, I have been going here since i was a little girl. He always makes sure the parents and patients understand what is being done to their child. Treats every patient as if they were his own, and genuinely cares about their dental hygiene. All of their Hygienists are very nice and patient with kids, they always inform the parents and patients of good oral hygiene.

    B.M.

Featured Articles

Read up on informative topics

  • Broken Teeth

    Even though enamel is the hardest substance in the body, teeth aren’t indestructible, and chipped, cracked, and broken teeth are among the most common dental injuries. Tooth fractures might result from accidents, trauma, tooth grinding, chewing hard objects and foods, or extensive decay. Tooth injuries ...

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  • Apicoectomy

    Root canal therapy is often enough to treat infection in the inner tooth successfully. If pain or inflammation return, however, these symptoms can indicate a new or recurring infection. In such cases, an apicoectomy is a common surgical procedure used to save the tooth and restore the health of the surrounding ...

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  • Tooth Pain

    Pain is a signal that something is wrong. Any tooth pain should be taken seriously because ignoring this symptom can lead to more serious dental and medical consequences. Among the common causes of tooth pain are decay, erosion, infection, and trauma. Tooth Decay Tooth decay begins with the bacteria ...

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  • Orthodontic Emergencies

    If you experience severe pain or a problem with your orthodontic equipment that cannot be fixed at home, you will need to contact your orthodontist immediately to get it resolved. Leaving your tooth in pain or your equipment damaged for a long period of time will ultimately set back your treatment plan. ...

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Our Location

Hours of Operation

Monday:

9:00 am-5:00 pm

Tuesday:

9:00 am-5:00 pm

Wednesday:

9:00 am-5:00 pm

Thursday:

9:00 am-5:00 pm

Friday:

9:00 am-5:00 pm

Saturday:

Closed

Sunday:

8:00 am-1:00 pm