Dozens of jobs are on the line because of a shake-up of NHS services.

About 60 people working in the NHS Primary Care Support team in Lancing have been sent letters warning they are at risk of being made redundant.

Their office, based in Lancing Business Park, is due to close at the end of June as part of a national restructure of the services they provide.

Unions have criticised the move, saying staff need to be given support to find possible jobs with other NHS organisations in the area.

The team runs a range of services which support GPs, dentists, pharmacists and opticians.

These include processing patient registrations with GP practices, managing medical records, inviting patients for breast or cervical screenings, processing payments and acting as distributors for clinical supplies.

The service was formed in April 2013 as part of the national reorganisation of the NHS and offices around the country are managed overall by NHS England.

Lancing is the only Sussex-based team.

Unison south east representative Caroline Fife said: “This is obviously a difficult time for the people involved and the threat of this has been hanging over them for a while.

“The fact these services are being changed less than two years after they were formed makes you question the effectiveness of the whole NHS reorganisation.

“There is also potential public health issue with the confusion caused by the loss of the centre and the changes to the service.

“For example, there is the risk of letters inviting people for screenings not being sent out.

“There could also be problems with supplies and payments as well.”

A spokesman for NHS England said: “Like all publicly funded NHS organisations, we need to make significant savings in order to protect delivery of front-line services.

“As part of a programme to reduce costs, a number of Primary Care Support services will be consolidated onto fewer sites.

“Lancing is one of the sites that is proposed to close, and inevitably this will mean that some staff will be made redundant.

“NHS England is committed to supporting staff through this process and to find new employment opportunities within the NHS.

“During this period of change all services will continue to be provided to the primary care contractors in West Sussex.”