NGS Customer Service Phone Number

Phone Number of NGS is +1-586-779-7676, Fax: +1-586-416-3001 .
NGS Coresource is renowned as a third-party administrator, specialized in claims administration, and providing to self-funded employers. NGS CoreSource has been providing services since 1979. During 2006, CoreSource purchased NGS American. CoreSource is a subsidiary of Trustmark Insurance. As of 2014, the company is counted among of the US's largest third party administrators.

NGS CoreSource Plans and Services

NGS CoreSource has more than 950 group medical plans, providing through 312,000 employees in 50 states in the United States. There are a number of services which include Medical Claims Administration, Eligibility Administration, Managed Care Programs, HSA/HRA Administration, Self Service InfoCenter, Cobra Administration, Flexible Spending Account, Dental Administration , Disability Administration, Industry Trends, Plan Documentation, and Employee Communication Services.

For any kind of information and query, as well as Claim related questions, you can contact customer service representatives available Monday through Friday from 08:30 am to 04:30, EST at:

NGS Technical Helpdesk Number: +1-877-938-8875
NGS Sales Department Number: +1-877-647-0083

The mailing address of NGS is P.O. Box 2310, Mt. Clemens, Michigan 48046, United States.

You can also visit at the official website for more information, where you can know complete about NGS CoreSource Plans and Services.

NGS Address

The address of NGS is 19800, Hall Road, Clinton Township, Michigan 48038, United States.

NGS Website

The Website of NGS is

NGS Customer Support Service Phone Number

The customer support phone number of NGS is +1-586-779-7676, Fax: +1-586-416-3001 (Click phone number to call).


The postal and official address, email address and phone number (helpline) of NGS Service Center and NGS customer service phone number is given below. The helpline of NGS customer service phone number may or may not be toll free.

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