Our Firm
Team Members

Dianne E. Spires, CPA
REVIEW MANAGER, PARTNER
dspires@wise-cpa.com
(541) 882-6630
"Talented and smart about business and accounting" is a good description of Dianne Spires. She is one of the first female partners of a CPA firm in Klamath Falls. Our clients know Dianne as methodical, patient and precise, yet quick to laugh and reassure with quiet confidence. Dianne is a graduate of Klamath Union High School and the University of California at Berkeley.
Bryce Wilberger, CFE, CPA/ABV/CFF 
TAX MANAGER, PARTNER
bwilberger@wise-cpa.com
(541) 882-6630
Bryce is a graduate of Oregon State University. Bryce serves a diverse group of clients, with a focus on privately held businesses in the agricultural, healthcare, manufacturing, professional services, retail, and technology industries. In addition to accounting and business consulting services, Bryce also provides internal control evaluation, litigation support, financial reporting, financial analysis, business planning, and valuation consulting services. He is a Certified Public Accountant (CPA) Accredited in Business Valuation (ABV) and Certified in Financial Forensics (CFF). He is also a Certified Fraud Examiner (CFE) and has significant experience providing fraud prevention and detection services. Bryce takes an active role in promoting practice development within the firm. He works with clients to ensure they receive the appropriate attention and highest quality of service.
Pete Mongan, CPA
OKR MANAGER, PARTNER
pmongan@wise-cpa.com
(541) 882-6630
Pete worked in public accounting at WISE & CO., LLP's predecessor firm where he was responsible for multiple areas of the business where he prepared and reviewed Audited, Reviewed and Compiled Financial Statements; prepared and reviewed Corporate, Partnership, Trust, Estate, Individual, Retirement, Payroll and Informational Tax Returns; and supervised and trained staff. He enjoyed his time working with clients and staff. In 2012, Pete moved to Bangkok, Thailand to join a new business venture. In January 2014, Pete moved backed to the Klamath Falls.
A native of Wisconsin, Pete received a Bachelor of Science Degree in Chemistry from Beloit College, Beloit, Wisconsin in 1986. He parlayed his mathematical and analytical skills into accounting at the Oregon Institute of Technology and into a CPA License
Gerry Horowitz, CPA
MANAGING DIRECTOR
ghorowitz@wise-cpa.com
(541) 882-6630
Gerry Horowitz, CPA has been a CPA since 1984. He specializes in sophisticated tax planning and tax preparation. He has experience in business acquisitions, mergers and business sales. Gerry has been an active advocate for his clients before the IRS and has had many successful resolution of IRS problems. Gerry helps businesses and their owners with accounting, tax, management advisory services and business consulting.
Gerry graduated from ASU. Gerry loves to play racquetball, golf, play guitar, hike, and travel. His wife, Carol, has put up with him for 47 years. We have two children and one unruly puppy, Auggie Doggie.

Principal Frederic C. Johannsen
Principal Frederic C. Johannsen is a graduate of the University of Oregon with a Bachelor of Science degree in accountancy.
A Certified Public Accountant in Oregon and a member of both the Oregon Society of Certified Public Accountants and the American Institute of Certified Public Accountants, Mr. Johannsen became a partner in 1982 and has worked closely with clients in accounting and tax issues. Mr. Johannsen has had the privilege to hold many positions in the community during the past thirty years. Experience includes all areas of practice - attestation, tax, and consulting.
E-mail fjohannsen@wise-cpa.com
KATHY POPPE, CPA
ACCOUNTING AND AUDIT MANAGER
With 18 years cpa experience kathy is well qualified to lead our audit team.
e-mail: kpoppe@wise-cpa.com

VANESSA ESPINOZA, CPA CANDIDATE
SENIOR MANAGER
Vanessa has been with us since the beginning! She's a talented accountant!
JEFFERY DENNISTON, STAFF ACCOUNTANT
Jeffrey is a graduate of Southern Oregon University with a degree in accounting and formerly a manger with Dutch Brothers. Jeffery is working towards obtaining his CPA certificate.
jdenniston@wise-cpa.com
DIEGO DELGATO, STAFF ACCOUNTANT, CPA CANDIDATE
Diego is an accomplished accountant and tax preparer.
REBECCA STICKLES, CPA
Reebecca is an outstanding auditor and tax accountant!
REBECCA HOPPE, SENIOR STAFF ACCOUNTANT
LINDA PAHLER,, SENIOR STAFF ACCOUNTANT
Our terrific admin team!
Myra, Angel, Miranda and (not shown) Lorrie, Donna and Cindy.
Quick Contact
Wise & Co LLP CPAs
920 E. Jackson Street
Medford, OR 97504
Tel: 541-772-8666
Fax: 541-779-4442
422 S. 5th Street
Klamath Falls, OR 97601
Tel: 541-882-6630
Fax: 541-883-1919
17 S. G Street
Lakeview, OR 976301
Tel: 541-947-2312
Fax: 541-947-5063
Email: info@wise-cpa.com
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We are here to help with business consulting, business planning, tax matters and help with all your financial and business concerns.