1. Short title This Act may be cited as the Patient Navigation Assistance Act of 2018 . 2. Medicaid coverage for patient navigator services (a) In general Section 1902(a) of the Social Security Act ( 42 U.S.C. 1396a(a) ) is amended— (1) in paragraph (82), by striking and at the end; (2) in paragraph (83), by striking at the end the period and inserting ; and ; and (3) by inserting after paragraph (83) the following new paragraph: (84) provide that the State shall reimburse an eligible entity (as defined in subsection (nn)(1)) for any patient navigator service (as defined in subsection (nn)(3)) that is provided— (A) to an individual who is eligible for medical assistance under the State plan; and (B) by a patient navigator (as defined in subsection (nn)(2)) through the eligible entity. ; and (4) by adding at the end the following new subsection: (nn) Patient navigator services definitions For purposes of this section: (1) Eligible entity The term eligible entity means an entity that— (A) is an eligible entity (as defined in subsection (l)(1) of section 340A of the Public Health Service Act)