Meet Our Team

Rick De Hamer

Rick has over 30 years of public accounting experience and started the practice in 1988. The practice has specialized in working with all small businesses including assistance in business start-ups of all sizes. He can assist with any of your tax needs for businesses or for individuals.

Professional Credentials

  • Licensed Public Accountant
  • Accredited Business Accountant
  • Enrolled Agent - Enrolled to represent taxpayers before the Internal Revenue Service, this is the highest credential awarded by the IRS.
  • Accredited Tax Advisor

Professional Memberships

  • Accountants Association of Iowa
  • National Society of Accountants
  • National Association of Enrolled Agents
  • Iowa Society of Public Accountants
  • National Society of Tax Professionals
  • Minnesota Association of Public Accountants


Ricky De Hamer

Ricky has over 14 years of public and private accounting experince. This knowledge will help your business find process improvements, provide consulting, and assist in any accounting work you may need. He has served as president and vice president for the Accountants Association of Iowa and is currently on the board of directors of AAI. He earned his BA in accounting at Central College in Pella, IA.

Professional Credentials

  • Licensed Public Accountant
  • Accredited Business Accountant
  • Enrolled Agent - Enrolled to represent taxpayers before the Internal Revenue Service, this is the highest credential awarded by the IRS.

Professional Memberships

  • Accountants Association of Iowa - Board of Directors
  • National Society of Accountants

Randy Cook - Creston Office Manager

Randy has over 30 years of public accounting experience. He is a Creston High School graduate, Southwestern Community College graduate, and earned his BS in accounting at Northwest Missouri University. Randy is married to his wife Joni and they have three sons Ryan (wife Stephanie), Kaleb, and Jacob.

Professional Credentials

  • Certified Public Accountant

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David Ayers - Staff Accountant

David has over 7 years of public accounting experience. He is a Creston High School graduate, Southwestern Community College graduate, and earned his BA in accounting and business administration at Buena Vista University in Storm Lake, IA. David is married to his wife Christy and they have a daughter Penelope.

Diana McKim - Staff Accountant

Diana has over 30 years of public accounting experience. She earned her BA in accounting at Iowa State University. Diana is married to her husband Don and they have two children Ryan (fiance Brittany) and Katie - plus two granddogs Lena and Scout. 

Kristi Frederick - Staff Accountant

Joyce Clark - Office Assistant

Joyce has over 40 years of public accounting experience, which 40+ years of working for Draper, Snodgrass, Mikkelsen & Co. She has held various responsibilities in her time within the firm. Joyce is married to her husband Jack (for 56+ years!!) and they have two children Travis and Tiffany, 6 grandchildren, and 4 great grandchildren. They are avid golfers, travelers, and anything related to their grandchildren.

Evonne Lents - Office Assistant

Evonne has over 40 years of public accounting experience, which 40+ years of working for Draper, Snodgrass, Mikkelsen & Co. She attended the Spencer School of Business. Evonne is married to her husband Dale, they have two children Brad (wife Lori) and Ryan (wife Brooke) and four grandchildren Nolan, Addison, Garrett, and Mason.

Cindy Wilson - Office Assistant

Cindy has over 10 years of public accounting experience, which was has been working with DeHamer Accounting Services and Michael Brentnall CPA. She also had worked at the Creston Medical Clinic in their office for 22 years. Cindy is married to her husband Steve, they have two children Jeremy and Jarrad, and have three grandsons Sam, Drake, and Hayden.

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DeHamer Accounting Services, LLP, 2400 86th St. Ste 19, Urbandale, IA 50322
Phone: (515) 270-0314 | Fax: (515) 270-1535 | Email: ricky@dehameraccounting.com
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