$3,600,000 Revolving Note dated August 19, 2016, issued by Northstar Healthcare Acquisitions, L.L.C. in favor of LegacyTexas Bank

Exhibit 10.4

REVOLVING NOTE

FOR VALUE RECEIVED, the undersigned, NORTHSTAR HEALTHCARE ACQUISITIONS, L.L.C., a Delaware limited liability company (the “Borrower”), hereby promises to pay to the Lender set forth above (the “Lender”) the Principal Amount set forth above, or, if less, the aggregate unpaid principal amount of all Revolving Loans (as defined in the Credit Agreement referred to below) of the Lender to the Borrower, payable at such times and in such amounts as are specified in the Credit Agreement.

The Borrower promises to pay interest on the unpaid principal amount of the Revolving Loans from the date made until such principal amount is paid in full, payable at such times and at such interest rates as are specified in the Credit Agreement. Demand, diligence, presentment, protest and notice of non-payment and protest are hereby waived by the Borrower.

Both principal and interest are payable in Dollars to Healthcare Financial Solutions, LLC (as the successor in interest to General Electric Capital Corporation), as Agent, at the address set forth in the Credit Agreement, in immediately available funds.

This Revolving Note is one of the Notes referred to in, and is entitled to the benefits of, the Credit Agreement, dated as of March 31, 2015 (as the same may be amended, restated, supplemented or otherwise modified from time to time, the “Credit Agreement”), among the Borrower, the other Credit Parties party thereto, the Lenders party thereto and Healthcare Financial Solutions, LLC (as the successor in interest to General Electric Capital Corporation), as administrative agent for the Lenders. Capitalized terms used herein without definition are used as defined in the Credit Agreement.

The Credit Agreement, among other things, (a) provides for the making of Revolving Loans by the Lender to the Borrower in an aggregate amount not to exceed at any time outstanding the Principal Amount set forth above, the indebtedness of the Borrower resulting from such Revolving Loans being evidenced by this Revolving Note and (b) contains provisions for acceleration of the maturity of the unpaid principal amount of this Revolving Note upon the happening of certain stated events and also for prepayments on account of the principal hereof prior to the maturity hereof upon the terms and conditions specified therein.

This Revolving Note is a Loan Document, is entitled to the benefits of the Loan Documents and is subject to certain provisions of the Credit Agreement, including Sections 9.18(b) (Submission to Jurisdiction), 9.19 (Waiver of Jury Trial), 9.23 (Joint and Several) and 11.2 (Other Interpretive Provisions) thereof.

This Revolving Note is a registered obligation, transferable only upon notation in the Register, and no assignment hereof shall be effective until recorded therein.

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This Revolving Note shall be governed by, and construed and interpreted in accordance with, the law of the State of New York.

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IN WITNESS WHEREOF, the Borrower has caused this Revolving Note to be executed and delivered by its duly authorized officer as of the day and year and at the place set forth above.