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Diapoules & Feinstein, CPAs, P.C. is a Long Island accounting firm that differentiates itself from other accounting firms by the level of attention to detail and concern that is shown their clients. As a D&F client your accounting, tax and financial concerns will be expertly addressed at the highest professional level. Our accomplished CPAs are trained to take the extra time that is needed to help your business achieve maximum economic success. Our goal is to learn all about both your business and your personal finances to become your “partners in success” rather than simply your outside accountants. Join our prospering clientele in Nassau and Suffolk Counties, as well as those in the Tri-State Area, who depend on Diapoules & Feinstein CPAs P.C. to help them achieve their financial goals.