Phil Detlefs
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    Amanda Johnson-Hamilton
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    Gary Johnson
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    Don Leese
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    Bill King
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    GBS Detlefs Johnson 

    Detlefs Johnson, a Division of Gallagher Benefit Services, Inc. (GBS - Detlefs Johnson), believes that every client is unique, with their own individual challenges. GBS - Detlefs Johnson offers a large spectrum of resources needed for administering employee benefits. We demonstrate an extraordinary level of expertise, while delivering the highest level of service to all our clients.

    GBS - Detlefs Johnson combines unique problem-solving methods with our client's business goals. We partner with our clients to achieve strategic and tactical goals, while providing superior service. This approach ensures we deliver a tailored solution, providing clients with answers to their most important and complex benefit issues.

    We offer a unique value proposition to employers including:

    Backgrounds of the partners and associates who serve our customers


    The concept of involving multiple partners on all cases


    The complete analytical and creative approach we utilize on all aspects of benefit management through the application of industry leading tools and expertise


    The strengths provided by GBS - Detlefs Johnson as part of one of the largest insurance companies in the world

    Client Commitment
    We provide superior, cost-effective risk management products and services that meet the ever-changing needs of our current and prospective clients, while continuing to strive for the highest professional excellence in the delivery of those products and services.

    We will also adhere to rigid moral and ethical standards in all of our dealings as we look to the challenges of the future with confidence in our ability to create and maintain a Gallagher Team that is the very best at what we do.

    Our Promise
    We show evidence of what you are paying for:

    We ensure complete disclosure and transparency on all sources of income


    We provide “Proposals of Insurance” which include a detailed marketing review


    We develop written service plans that detail who will perform designated services and when they will be completed


    We are committed to providing the resources to help clients accurately manage your employee benefits


    We offer expertise and guidance in every area of benefits planning, delivery, and administration


    We’ve developed the expertise to help identify problems, define goals, and tailor solutions for these business issues

    Your Dedicated Service Team
    All of our clients are assigned a dedicated team of professionals to ensure they will receive optimum benefit cost savings and superior customer service.

    We can't make things happen without each other. We are a team….The Gallagher Way.


    Street Address
    18153 E. Petroleum Drive
    Baton Rouge, LA 70809

    Detlefs Phone: 225.292.3515
    Johnson Phone: 225.752.4165

    Detlefs Fax: 225.663.3210
    Johnson Fax: 225.752.5747


    HR One Source, a Division of Gallagher Benefit Services, Inc.
    18153 E. Petroleum Drive
    Baton Rouge, LA   70809