Ray Cooper, who lives in Llantrisant and has Parkinson's, has to travel to Cardiff to see a Parkinson's Disease nurse specialist, because there is not one locally.
Carol Smith, campaigns officer for the PDS in Wales said: "We are clear that there is a very real need to provide a Parkinson's Disease nurse specialist in the Cwm Taf area to ensure there is the support available for people with Parkinson's.
The survey also revealed an urgent need for more Parkinson's Disease Nurse Specialists (PDNSs) in Wales.
There are currently 10 Parkinson's Disease Nurse Specialists working in Wales and one more post is "currently in development.
But in many parts of South Wales there is no-one employed as a Parkinson's disease nurse specialist
and many people miss out.
Janet Ryder,Plaid Cymru National Assembly Member for North Wales,met the only Parkinson's Disease nurse specialist in North Wales last week.
Parkinson's Disease nurse specialist Sally Roberts is based at Ysbyty Glan Clwyd and covers Denbighshire and Conwy.
JANE DAVIDSON has called for Parkinson's disease nurse specialists
to be employed in parts of South Wales.