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    Sienella Thomaszadeh, DDS

    4.3 (51 reviews)
    Closed 8:00 am - 5:00 pm

    Services - Sienella Thomaszadeh, DDS

    Cavity treatment

    Dental exams

    Tooth filling replacement or repair

    Sienella Thomaszadeh, DDS Photos

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    Recommended Reviews - Sienella Thomaszadeh, DDS

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    6 years ago

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    6 years ago

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    6 years ago

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    6 years ago

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    6 years ago

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    7 years ago

    This dental practice is the best I have ever been associated/treated . Everything explained and thorough. (Also painless)

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    7 years ago

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    10 years ago

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    5 years ago

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    8 years ago

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    14 years ago

    Poor quality work and doesn't fix subsequent failures.

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    Review Highlights - Sienella Thomaszadeh, DDS

    Thomaszadeh was thorough and clearly explained what she was seeing and what options were available to me.

    Mentioned in 17 reviews

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    Atascadero Hills Dental - Front Desk

    Atascadero Hills Dental

    4.5(88 reviews)
    1.6 mi

    Wonderful man. Brilliant, kind, friendly (if you need that). Again they took me right away and…read moretreated me so kindly. No extra charges. Just great people.

    My initial review of this office was very positive. I had been a patient elsewhere, and upon coming…read morehere, I was immediately impressed with the technology. Fast, non-invasive x-rays, the ability to fabricate crowns in-house, huge staff...felt like it was a step in the right direction. Fast forward to now, and I feel differently. I had one crown done, as a tooth had cracked. I was given a $1,000 estimate with the standard disclaimer that I'll be responsible for the actual amount. No problem, I know the drill, as I have had dental work done in the past. The problem was their "estimate" was 100% off, and now I'm being asked to pay $2,000 for a crown that was supposed to be $1,000. From my perspective, if my job was to deal with insurance companies on a daily basis and I had hundreds of patients and thousands of EOBs, I should be able to get closer than being half-way to the actual price. I can't help but feel like I was taken advantage of. Had I known the actual price, I likely would have shopped around and had the work done elsewhere. On my next cleaning visit, the dentist told me I needed something like 6 or 7 MORE crowns. How many of those are medically necessary, and how many are to add billable income, since they cost so much more than insurance covers, AND can be done in-house?

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    Atascadero Hills Dental - Before & After

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    Before & After

    Sienella Thomaszadeh, DDS - generaldentistry - Updated July 2026

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