Tariana Turia wants Māori women to have key role in shaping new Māori Health Authority.
The DHB is working on opening one large town centre facility in Whanganui.
McDouall says council already looking into new sectors flagged as being the most pressing.
The Whanganui Lands Settlement Negotiations Trust wants formal agreement with council
"The health system with DHBs is almost 20 years old and change is needed."
The bill updates Māori land rating laws that have been largely untouched since 1924.
It's the first time iwi representatives will be formally appointed to a Horizons committee