Scottsdale, AZ Accounting Firm | Meet Our Team Page | Cilliers, CPA
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Meet Our Team

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Cilliers, CPA PLLC is a full-service Certified Public Accounting firm licensed in Arizona.  Our team of skilled professionals are ready to help you succeed with yoru accounting and tax needs.

Meet Our Staff:


Traci J. Cilliers, CPA

Traci grew up in the mid-west and moved to Arizona in 1996.  She graduated with a BS in Accountancy and BSBA-Economics from the University of Missouri-Columbia. She went on to obtain her MBA from Arizona State University. She obtained her CPA license in the state of Missouri in 1993 and transferred her license to the state of Arizona in 2005.

Traci started her career with Price Waterhouse in financial and technology auditing. After leaving PW, she worked in auditing and technology for large companies. She has been a project manager and director responsible for technology control functions.

Traci is a member of the American Institute of CPA's and the Arizona Association of Accounting and Tax Professionals.   She is an Elite Member of the QuickBooks ProAdvisor Program.


Philip Cilliers, CPA

Philip grew up in South Africa. He  moved to the US at the age of 18 and graduated with a BS in Accountancy from the University of Nebraska-Lincoln. He went on to obtain his MBA from Arizona State University. He obtained his CPA license in the state of Arizona in 1998. To better serve our clients in the Financial Planning area, Philip has also obtained his Series 7 and AZ insurance licenses.   Philip is an Elite Member of the QuickBooks ProAdvisor Program.

Philip has experience in various accounting and finance roles in Fortune 500 companies. There he gained valuble experience in financial planning and analysis, cost accounting, balance sheet control, financial governance and controls and technology project management.

Philip is a member of the American Institute of CPA's, Arizona Society of CPA's and the Arizona Association of Accounting and Tax Professionals.   Philip volunteers as Trustee of the Cave Creek Unified Education Foundation.




Andrew Nomicos - Staff Accountant

I was born in Redding CA and moved back and forth between AZ and CA most of my life. I went to ASU and graduated with a Business Law degree. I have always loved numbers and math and that is what brought me to accounting.




Kristy Vanderloon -  Staff Accountant

Kristy graduated with a BS in Accountancy from the University of Illinois, Urbana-Champaign and has a Master’s in Teaching from National-Louis university.  She has worked in various roles in accounting and finance.  Originally from Chicago, Kristy has been living in North Phoenix since 2015.



Open Position -  Staff Accountant




John Prothero -  Staff Accountant

I was born in Bakersfield California. I moved to Colorado when I was a small boy and lived there for most of my life. In 2020 I moved to Phoenix to start my career in accounting. I am a musician in my off time that specializes in drums and percussion. I seek out opportunities to play as much as I can. I like numbers and data analysis which is what drew me to accounting.




Shannon Rothwell -  Office Manager

Shannon provides office support to the team and clients. She is a native Ohioan and has worked several years in the tax and accounting industry. She is new to the firm and is looking forward to meeting the clients, getting to know them and building relationships. She is a member of NATP; National Association of Tax Professionals.