Our consultants are world-class experts who have helped to create some of the profession’s best practices in their areas of focus. While they pride themselves on being industry leaders, they’re most satisfied when they develop innovative solutions that meet a client’s unique needs—and when they communicate that knowledge and insight in ways customers can understand and appreciate.

Management

Photo Shawna Ackerman FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 415-692-0937
shawnaa@pinnacleactuaries.com
Photo LeRoy Boison FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 516-746-7149
lboison@pinnacleactuaries.com
Photo Barbara T. Henderson Executive Director



Biography
Office Phone: 309-807-2303
bhenderson@pinnacleactuaries.com
Photo Joseph A. Herbers ACAS, MAAA Managing Principal



Biography
Office Phone: 309-807-2310
jherbers@pinnacleactuaries.com
Photo Steven G. Lehmann FCAS, FSA, FCIA, MAAA Principal and Consulting Actuary



Biography
Office Phone: 309-807-2302
slehmann@pinnacleactuaries.com
Photo Roosevelt C. Mosley, Jr. FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 309-807-2330
rmosley@pinnacleactuaries.com
Photo Robert J. Walling, III FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 309-807-2320
rwalling@pinnacleactuaries.com

Consultants

Photo Shawna Ackerman FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 415-692-0937
shawnaa@pinnacleactuaries.com
Photo LeRoy Boison FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 516-746-7149
lboison@pinnacleactuaries.com
Photo Erich A. Brandt FCAS, MAAA Consulting Actuary



Biography
Office Phone: 309-807-2311
ebrandt@pinnacleactuaries.com
Photo Christopher S. Carlson FCAS, MAAA Consulting Actuary



Biography
Office Phone: 614-602-6594
ccarlson@pinnacleactuaries.com
Photo Nikklaus J. Frank ARM, ARM-P Risk Management Consultant



Biography
Office Phone: 309-807-2315
nfrank@pinnacleactuaries.com
Photo Derek W. Freihaut FCAS, MAAA Consulting Actuary



Biography
Office Phone: 309-807-2313
dfreihaut@pinnacleactuaries.com
Photo Joseph A. Herbers ACAS, MAAA Managing Principal



Biography
Office Phone: 309-807-2310
jherbers@pinnacleactuaries.com
Photo Bryan Isbell Information Technology Manager



Biography
Office Phone: 309-807-2350
bisbell@pinnacleactuaries.com
Photo Steven G. Lehmann FCAS, FSA, FCIA, MAAA Principal and Consulting Actuary



Biography
Office Phone: 309-807-2302
slehmann@pinnacleactuaries.com
Photo Kevin M. Madigan PhD, ACAS, MAAA Consulting Actuary



Biography
Office Phone: 518-288-0139
kmadigan@pinnacleactuaries.com
Photo Laura A. Maxwell FCAS, MAAA Consulting Actuary



Biography
Office Phone: 415-692-0938
lmaxwell@pinnacleactuaries.com
Photo Roosevelt C. Mosley, Jr. FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 309-807-2330
rmosley@pinnacleactuaries.com
Photo Pete S. Rauner FCAS, MAAA Senior Consulting Actuary



Biography
Office Phone: 630-457-1296
prauner@pinnacleactuaries.com
Photo Sandra L. Ross FCAS, MAAA, CIC Consulting Actuary



Biography
Office Phone: 734-927-5103
sross@pinnacleactuaries.com
Photo Paul A. Vendetti FCAS, MAAA Senior Consulting Actuary



Biography
Office Phone: 309-807-2312
pvendetti@pinnacleactuaries.com
Photo John E. Wade ACAS, MAAA Senior Consulting Actuary



Biography
Office Phone: 317-889-5760
jwade@pinnacleactuaries.com
Photo Robert J. Walling, III FCAS, MAAA Principal and Consulting Actuary



Biography
Office Phone: 309-807-2320
rwalling@pinnacleactuaries.com
Photo Gary C. Wang FCAS, MAAA Consulting Actuary



Biography
Office Phone: 309-807-2331
gwang@pinnacleactuaries.com
Photo Steven G. Lehmann FCAS, FSA, FCIA, MAAA Principal and Consulting Actuary

Mr. Lehmann is a Principal and Consultant with Pinnacle Actuarial Resources, Inc., in the Bloomington, Illinois, office. He holds a Bachelor of Science Degree (Cum Laude) in actuarial science from the University of Illinois. He has over thirty years experience in the insurance industry.

Mr. Lehmann is a Fellow of the Casualty Actuarial Society (CAS), a Fellow of the Society of Actuaries, a member of the American Academy of Actuaries and a Fellow of the Canadian Institute of Actuaries. He is a former President of the CAS and a former Chairman of the CAS Board of Directors. He has also served as President of the American Academy of Actuaries, Chairman of the Academy Board of Directors and Chairman of its Casualty Practice Council.

Mr. Lehmann’s experience includes development of pricing strategies including coordination of underwriting and rating programs, credit score analysis, financial examinations, loss reserve opinions, rate filings, residual market studies, and rate of return analysis. He has testified before regulatory and legislative bodies on a variety of insurance matters including ratemaking, risk classification, and rate of return.

Mr. Lehmann has authored a CAS Forum paper entitled “Contingency Margins in Rate Calculations,” an article entitled “Auto Insurance Residual Market Mechanisms” and co-authored a CAS Forum paper entitled “Building a Public Access PC-Based DFA Model.” He has given numerous speeches and panel presentations in professional and public forums.

Biography
Office Phone: 309-807-2302
slehmann@pinnacleactuaries.com