The Care Quality Commission is due to begin a week-long inspection of Patients have been asked to share their views with inspectors about healthcare in Hounslow and Richmond.
The Care Quality Commission is due to begin a week-long inspection of Hounslow & Richmond Community Healthcare NHS Trust (HRCH).
The watchdog wants to hear from members of the public before then about their experience of the service provided.
Any public feedback will be used to help inspectors decide which areas to focus on when examining the trust.
Sir Mike Richards, the CQC's chief inspector of hospitals, said: "The inspections are designed to provide us with a clear picture of the quality of the services, exposing poor or mediocre care as well as highlighting those trusts providing good and excellent care...
"Of course we will be talking to doctors and nurses, managers and people who use services in hospitals and in the community.
"But it is vital that we also hear the views of the people who have had experience of the care provided by HRCH, or anyone who wants to share information with us, to help us plan our inspection, and so focus on those things that really matter to people who depend on this service.
"This is your opportunity to tell me and my team what you think, and to make a difference to the NHS services in this area."
HRCH delivers community healthcare, which encompasses most services provided outside hospitals or GP surgeries, for more than 515,000 living in the boroughs of Hounslow and Richmond.
It employs community nurses, health visitors and physiotherapists, among other professionals.
To share your views with the CQC, visit http://www.hrch.nhs.uk/our-services/clinics-health-centres , call 03000 61 61 61 or write to CQC, Citygate, Gallowgate, Newcastle upon Tyne, NE1 4PA.