TPA Self Help

Welcome to MedPartners Administrative Services. MedPartners Administrative Services (MPAS) is managed by MedPartners, a 50/50 joint venture between Lutheran Hospital and Three Rivers Medical Associates, an Independent Physician Association. MPAS began operations on January 1, 2008 administering the medical benefit plan for the Community Health System (CHS) employees in Northeast Indiana, approximately 4,800 employees. Since January 1, 2008 we have grown to servicing more than 17,000 employees in more than 6 states. 

MPAS is currently serving the following employers: CHS Group Health Plan, Falcon International Bank, DeKalb Health, Cameron Memorial Hospital and Galesburg Cottage Hospital.

Members click here to login

Employers click here to login

Providers click here to login


Important forms:

Accident Questionnaire

Coordination Of Benefits Questionnaire

CMS 1500 Form

Consent Form

Pre-certification Request Form

Pre-Determination Request Form


For provider network inquiries, please visit one of the sites below. Please refer to your medical ID card for the correct logo.

Lutheran Preferred  

Mary Black Health Systems
PHCS Premier Care Northwest
Verity Health Net

First Choice Health Plan

First Health

Three Rivers Preferred