My Team

As a Wealth Management Advisor for  Northwestern Mutual, I am committed to helping my clients whether they are concerned for their own financial needs or those of their family or business. I don't do it alone. Here is a list of the people who help make it happen. Together, we stand committed to providing the best customer service possible. If you have a problem or need assistance at any time, please let us know.

Katherine Birkenstock

Katherine Birkenstock

Marketing and Client Relations Manager
Office 609-951-8700

Katherine joined Dave's team in January 2019 after a successful career in advertising (DDB), pharmaceutical marketing (Medco Health Solutions now ExpressScripts), and alumni relations (The Lawrenceville School). She and Dave met at Loyola University, Maryland where she earned her BA in Communications while minoring in French. Married since 2004, they are blessed with three children: Sarah, Emily and Drew. 


David A Birkenstock, MBA, CLU®, ChFC®, RICP®

Wealth Management Advisor

  • Mobile 561-351-6542
  • Office 609-750-3607


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