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    Liberty Dermatology

    2.6 (28 reviews)
    Open 8:00 am - 5:00 pm

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    Liberty Dermatology sent me to William Posten in Dallas for a tiny spot of Basal skin cancer, the slowest growing & least dangerous cancer.

    Since Liberty Dermatology in Rowlett referred me to William Posten in Dallas, they too deserve an unfavorable review. My insurance carrier and I have contacted William Posten at Advanced Dermasurgery Associates' billing office numerous times after the insurance company showed on their Explanation of Benefits (EOB) his charge to me should have been $257.20. However, he charged me $1.210.66. Therefore, he overcharged me by $953.46. Posten's billing office hung up on me twice, even though I was not angry with them when I was trying to explain the aforementioned over-charge. Since Posten is an in-network doctor, he has agreed to charge in-network prices! If he disagrees with the EOB, he is to appeal the payment with UMR, not overcharge the patient and refuse to return the over-charge. To add insult to injury, my insurance company's nurse informed me that the medical clinical information did not support such a large and deep hole he carved into my face to remove a tiny spot of Basal cancer, which recently formed because it is the slowest growing and the least dangerous skin cancer. The hole he carved into my face required plastic surgery and anesthesia. Thereby increasing the cost for both me and the insurance carrier by thousands of dollars more. Unfortunately, I did not do my Yelp search before my procedure because afterwards, my search of reviews of Posten found several very bad reviews. For instance, he treated several patients very poorly, such as, Aria Couture and Hayli Renfro. He also overcharged and refused to return an over-charge of $1,000 to Meggin Kaufman and Sachi W. Therefore, steer clear of Liberty Dermatology and William Posten they are money hunger people who don't care about many of their patients!

    the dark reddish brown circles is where the medication was burning his skin.

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    9 months ago

    They have removed my dark spots from neck and face. Very helpful and kind staff. Great advice and after care consultations.

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    3 years ago

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    2 years ago

    Just awful service. Not worth the price and wait. Do yourself a favor and go to another practice.

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    4 years ago

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    4 years ago

    Dr. Tran is one of the smartest and warmest doctors I know. Definitely recommend this practice hands down.

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    3 years ago

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    3 years ago

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    4 years ago

    I just got back from a trip to Texas last month and this doc was really helpful- they are very collaborative. Highly recomend!

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    3 years ago

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    3 years ago

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    8 years ago

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    3 years ago

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    5 years ago

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    10 years ago

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    6 years ago

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    9 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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    14 years ago

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    14 years ago

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    9 years ago

    I have known Dr Tran for several years. I recommend him to my family and friends in the Dallas area.

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    13 years ago

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    10 years ago

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    10 years ago

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    10 years ago

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    11 years ago

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    Liberty Dermatology - dermatology - Updated June 2026

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