David Robert Bonomi, CLU®, ChFC®, CAP®

Wealth Management Advisor

My Team

When you became my client, you placed your trust in me to help make your vision a reality. I honor that trust with the help of my expert support staff. Together, we make a strong commitment to customer service.

If at any time you have a question, concern or need, please let us know.


Kimyona Dietter

Investment Operations Assistant

Kimyona Dietter is the Assistant Investment Account Manager at the West Springfield Branch of Northwestern Mutual. She started her career with Northwestern Mutual in December 2018 after completing her MBA with a focus in Entrepreneurial Thinking and Innovative Practices from Bay Path University. She found an interest in investing after taking several courses in financial matters to include Macroeconomics, Investment Strategy and Management, and Financial Planning. She credits her diverse background in education and life experiences for her motivation in helping others obtain financial security. One of her personal philosophies is to help others to grow better than they were to benefit themselves and others. Her first experience with this was enlisting in the U.S. Army where she got to experience what helping and protecting others truly meant. Working in investments allows her to continue helping others in a different way; by assisting in their financial safeguarding of themselves and their loved ones. Kimyona is passionate about education and is determined to use it to give back to others. She plans on becoming a securities broker which will allow her to provide financial education to her community. Kimyona currently resides in Indian Orchard, MA with her husband Brian and their cat, Phatea, as well as their dog, a beagle named Abel.


Lisa Hartman

Office Manager

Lisa Hartman is the Office Manager in the West Springfield Branch. Previously, she has worked in Real Estate for the last 20 years specializing in Short Sales. She decided to come to Northwestern Mutual because she wanted a change and started in May 2019. Her goal in life is to visit Greece, and she enjoys cooking. She resides in Springfield with her daughter, Arianna, and her chihuahua Peanut, as well as three cats she rescued.


To learn more about Northwestern Mutual Investment Services, LLC and its financial representatives, visit: FINRA BrokerCheck