All applications shall be remitted by May 16, 2025.
The MCA passed away on Tuesday this week.
Murkomen also said chiefs and officers in Rongo will be held to account over the incident.
There were earlier reports that fees would be hiked effective July 1, 2025.
In the past few weeks, Duale has been issuing a series of directives to healthcare regulatory bodies in quick succession.
The Senators warning comes amid a fallout between President Ruto and some ODM officials.
Malala also hit out at Ruto over his comments on the Butere Girls High School drama.
The case has been in the Kenyan courts for close to a decade.
The officer had appealed his sacking to the Public Service Commission.
The majority of those left out have, in the past, decried long processes in follow-ups.