Customer Service

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Customer Service, also known as CSU, is your source of support for members of Chicago Health System.  We strive to provide excellent customer service in an efficient, professional, and friendly manner.   Your well-being is important to us.  CSU is there for you for the following services:

  • Assistance on the process of selecting your PCP
  • PCP changes
  • Checking eligibility for your services
  • Explanation of Benefits
  • Questions about your claims
  • Co-payment questions
  • Checking on Appeals and Grievances
  • Questions about prior authorizations
  • Other questions


Call your Chicago Health System Customer Service Department by dialing our main line at (708) 783-7100 and following the prompts.   Our hours of operations are Monday-Friday between the hours of 8:30am and 5:00pm CST.   Spanish speaking translators are available upon request.

Find a CHS Provider

Physician Roster (PCP)

Physician Roster (SPC)

Physician Roster (Behavioral Health)