(707) 588-9700

David J. Fisher, CPA, MST

CPA in Rohnert Park, CA

Firm History

The accounting firm of David J. Fisher, CPA has been in business in Rohnert Park since July of 1998.  Dave has over 30 years' experience in tax and accounting.   

Dave completed his Masters in Taxation degree in November 2012 at the Washington Institute for Graduate Studies graduating Summa Cum Laude.

Starting in 1984, Dave spent his first 3 1/2 years in accounting working at a CPA firm in St. Helena, whose clientele was primarily winery and vineyard businesses.  The following 4 years were spent working for a large West Coast regional CPA firm in their Santa Rosa office, focusing on businesses and wealthy individuals as well as business consulting and systems consulting matters. 

Dave worked the next 4 years with the accounting firm of James W. McGuire, CPA and the following 4 years as a partner at McGuire and Fisher CPAs, before opening his own business in 1998.

Dave was also a MAS 90/MAS 200 accounting software consultant from 1987 through 2008 and has done extensive consulting regarding accounting systems setup, training and configuration.

Prior to his accounting career, Dave taught high school business education classes in Arizona and Wisconsin.  Dave also  taught college accounting classes at the Napa Valley Junior College and business classes at Yavapai College in Prescott, Arizona.

Professional Associations and Memberships

American Institute of Certified Public Accountants - 30+ years, California Society of Certified Public Accountants - 30 years, Former Rohnert Park-Cotati Rotary Foundation Treasurer and Rotary Club member for 14 years, Former Rohnert Park Chamber of Commerce Treasurer (4 year appointment), and Redwood Empire Estate Planning Council Member since 2006 and Club Treasurer since 2016.


Olga A. Fansler, Masters Degree in Taxation (MST) & Enrolled Agent, Supervisor

Robert (Bobby) Andrews, Staff Accountant/CPA Candidate

Ron Piastrelli, Staff Accountant & IT

Linda M. Fisher, Firm Administrator & Bookkeeper

Erica Estrada, Administrative Assistant

Deysi Estrada, Administrative Assistant

Tax Season Staff - we also ordinarily have 2 to 3 additional accountants on staff during our busy season

Firm Service

Our firm provides outstanding service to our clients because of our dedication to the three underlying principles of professionalism, responsiveness and quality.


Our firm is one of the leading firms in the area. By combining our expertise, experience and the energy of our staff, each client receives close personal and professional attention.

Our high standards, service and specialized staff spell the difference between our outstanding performance, and other firms. We make sure that every client is served by the expertise of our whole firm.


Our firm is responsive. Companies who choose our firm rely on competent advice and fast, accurate personnel. We provide total financial services to individuals, large and small businesses and other agencies.

To see a listing of our services, please take a moment and look at our services page. Because we get new business from the people who know us best, client referrals have fueled our growth in the recent years.

Through hard work, we have earned the respect of the business and financial communities. This respect illustrates our diverse talents, dedication and ability to respond quickly.


An accounting firm is known for the quality of its service. Our firm's reputation reflects the high standards we demand of ourselves.

Our primary goal as a trusted advisor is to be available to provide insightful advice to enable our clients to make informed financial decisions. We do not accept anything less from ourselves and this is what we deliver to you.

We feel it is extremely important to continually professionally educate ourselves to improve our technical expertise, financial knowledge and service to our clients.

Our high service quality and "Client Reviews" are the result of our commitment to excellence.

We will answer your questions, as they impact both your tax and financial situations. We welcome you to contact us anytime.