EXHIBIT 1

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13D need be filed with respect to the ownership by each of the undersigned of shares of Option Care Health, Inc.

This agreement may be executed in any number of counterparts, each of which shall be deemed an original.

The execution and filing of this agreement shall not be construed as an admission that the below-named parties are a group or have acted as a group.

Dated as of August 7, 2019.

MADISON DEARBORN PARTNERS, LLC
By:	/s/ Annie S. Terry
	Name: Annie S. Terry Title: Managing Director
Madison dearborn partners vi-A&C, L.P.
By:	Madison Dearborn Partners, LLC
Its:	General Partner
By:	/s/ Annie S. Terry
	Name: Annie S. Terry Title: Managing Director
Madison Dearborn Capital Partners VI-A, L.P.
By:	Madison Dearborn Partners VI-A&C, L.P.
Its:	General Partner
By:	Madison Dearborn Partners, LLC
Its:	General Partner
By:	/s/ Annie S. Terry
	Name: Annie S. Terry Title: Managing Director
MDP HC Holdings, llc
By:	/s/ Timothy Sullivan
	Name: Timothy Sullivan Title: Managing Director

HC Group holdings i, llc
By:	/s/ Nicolas Sassali
	Name: Nicolas Sassali Title: Assistant Treasurer

/s/ Elizabeth Q. Betten

Elizabeth Q. Betten

/s/ Timothy Sullivan

Timothy Sullivan

/s/ Paul J. Finnegan

Paul J. Finnegan

/s/ Samuel M. Mencoff

Samuel M. Mencoff