About Us

Who We Are

Founded in 1982, Cornerstone Group and its staff are distinguished by a tradition of integrity, industry leadership and excellence in the areas of employee benefits and insurances, as well as financial and retirement services.

The agency’s high-technology offices maintain their files in electronic form, allowing for speedy, accurate and up-to-date communication with every client.

Cornerstone Group has assisted corporate clients for the last 29 years with the design and management of their benefit programs.  Our focus has been to provide creative solutions to complex benefit issues, which has earned us the trust of major corporations.

Cornerstone has consistently expanded the use of technology within the industry.  Today, Cornerstone is one of the nation’s most technologically advanced insurance firms, delivering solutions.

We are proud of these numbers

ACA 1095 Forms Processed

Years in Business

Cups of coffee

% Customer Satisfaction

Meet the Cornerstone Team

Frank Mayer


Pat Platt

Enrollment & Eligibility Specialist

Jeanne Marie Galloway

Account Manager

Carrie Miller

Senior Director

Mark Hosking


Jessica Rowland

Account Manager

Lisa Smith


Elaine Kenny

Account Manager

Lauren Hilfinger

Customer Service

Our Services

What We Do

ACA Reporting

We provide all the implementation support you need to get the information required to accurately report to the IRS Under Section 6055 and 6056.

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With a tightly integrated suite of internet driven solutions,Cornerstone Group can help you attract talented employees, and keep them informed, engaged, and connected while significantly streamlining the way you’re managing benefits.
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We provide educational material on a vast range of compliance topics, ask including COBRA, HIPAA, FMLA, ADA, Heath Care Reform, Medicare Part D, I-9 regulations and more. Plus, we offer notices,  forms, employee communication and other materials to support all your compliance needs.
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Benefits Administration

We provide all the implementation support you need to get your site up and running, click and promote it to your employees.  Plus, we help with ongoing support and employee education to ensure maximum benefits to your firm.

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Cost Containment

We know that rising benefit costs are a challenge your company is constantly working to meet head-on. What if there were a way to get better control over your health benefit budget and make costs more predictable?
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The Cornerstone Group

From the blog

Check our latest news

Affordability Percentages Will Increase For 2019

Affordability Percentages Will Increase For 2019

On May 21, 2018, the IRS issued Revenue Procedure 2018-34 to index the contribution percentages in 2019 for purposes of…

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IRS Issues New Tools for 2018 Tax Withholding

IRS Issues New Tools for 2018 Tax Withholding

HIGHLIGHTS The IRS has issued three new tools for 2018 tax withholding. The updates reflect changes made by a tax…

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IRS Reduces HSA Limit for Family Coverage for 2018

IRS Reduces HSA Limit for Family Coverage for 2018

HIGHLIGHTS The IRS reduced the HSA contribution limit for 2018 for individuals with family HDHP coverage by $50 to $6,850.…

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Contact the Cornerstone Group

Call Us

(248) 641-2731

Email Address


Working Hours

Monday – Friday 8:30 am – 4:30 pm

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