The Minister for Health has admitted that Rehab cannot be forced to abide by public pay policy.
But James Reilly says the government expects organisations receiving major public funding to pay staff at similar rates to public servants.
The Dáil Public Accounts Committee (PAC) has agreed to hold a hearing with Rehab "in the next fortnight" to discuss pay and funding issues.
Meanwhile, the Rehab board of directors is meeting next Monday to decide whether to reveal the salary package of its chief executive, Angela Kerins.
The Chairman of the Group, Brian Kerr, said last month that the remuneration of the CEO is a matter for the Rehab Group board - and since the last voluntary disclosure of her salary in April 2011, there has been no formal request from any relevant authority to do so again.
In a statement on January 23rd, Mr. Kerr said some of the pressure that has been placed on Ms. Kerins and her family has been entirely unfair and very personal.
Minister Reilly says the government will not stop until it has full transparency in bodies that receive State funding.
But he is ruling out an independent inquiry.
