Private hospitals in the UK generally offer an excellent service to health insurance holders. Most health insurance companies provide a list of hospitals to insurance buyers. With some policies, you may have to pay additional charges to get access to some top London hospitals. It is important to check the hospital list provided by an insurance company to ensure the hospitals you require are on the list especially if you live in central London as usually you have to pay more in premium to have access to these top London hospitals.
You can also get treatment in some NHS hospitals as they have private rooms.