“We create trusting relationships.”

At KDP Certified Public Accountants, LLP we believe the  most important financial decision a business or individual can make is the  selection of an accounting firm. After all, any firm can produce a financial  statement, but not every firm has the ability to analyze your financial  situation like we do.  That’s because we  examine your financial picture as carefully as we do our own. We look beyond  the bottom line and we use our experience to evaluate what the numbers really say about your financial situation.


KDP Certified Public Accountants, LLP—a  Medford-based CPA firm—was formed in 2014 when two well-established firms merged: Kosmatka Donnelly & Co. LLP and Michael L. Piels CPAs, LLP.  Both these firms had been operating independently since 1976. Then, in 2021, KDP merged with Whittaker & Associates, Inc. in Boise, Idaho, extending our footprint to the Idaho market.

Our combined expertise created a firm that provides all the services you need in one  place: accounting services, audit and assurance, financial and business planning and advice, tax  compliance and planning services, computer and Internet consulting, computer  accounting services, and even financial services planning. We offer inventive suggestions and insightful advice  with one goal in mind—helping you succeed.

We strive to provide every client with a high level of partner involvement and technical excellence. We are committed to high-quality work, innovative  thinking, and exceptional client service. And to that end, we maintain a close  relationship with our clients all year-round, not just at tax time. We are determined to exceed our clients’ expectations, in order to  guarantee that each client relationship is a successful and long-term one. 

Our firm is a participating  member of the American Institute of Certified Public Accountants (AICPA)  Division for CPA Firms. Partners of the firm are  members of the AICPA and the Oregon Society of Certified Public Accountants  (OSCPA) and its peer review quality control program established to enhance national professional accounting standards.