Gentiva Health Services (GTIV) 10-K 2007 FY Annual report

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Gentiva Health Services, Inc. (the “Company”) on Form 10-K for the period ended December 30, 2007 as filed with the Securities and Exchange Commission (the “Report”), I, John R. Potapchuk, Executive Vice President, Chief Financial Officer and Treasurer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 13, 2008

/s/    John R. Potapchuk

John R. Potapchuk

Executive Vice President,

Chief Financial Officer and Treasurer