Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the 2014 Employee Stock Purchase Plan of Magellan Health, Inc., as amended and restated May 24, 2018, of our reports dated March 1, 2018, with respect to the consolidated financial statements and schedule of Magellan Health, Inc. and the effectiveness of internal control over financial reporting of Magellan Health, Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2017, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Baltimore, Maryland

June 12, 2018