Sefton Labour Councillors and Labour Action Team members together with NHS campaigners submitted a 1,600-name petition calling on Sefton's new Clinical Commissioning Groups to vow to protect the NHS from privatisation.
The new CCGs will officially begin work on April 1. They are made up of local GPs who will take control of the commissioning of health services from the soon-to-be defunct Primary Care Trusts.
Online campaign group, 38 Degrees, compiled the petition.
Sefton Labour Councillors, Harington Ward's Cllr Nina Killen, Blundellsands' Cllr Veronica Bennett, Derby Ward's Cllr Dave Robinson and Maghull Town Councillor Maurice Byrne, and Crosby & Blundellsands Labour Action Team's Ben Murphy joined other members of 38 Degrees to hand the petition to the CCGs.
North Sefton CCG chairman Niall Leonard and South Sefton CCG chairman Clive Shaw were on hand to meet the campaigners.
Cllr Killen said: "A fantastic number of people signed the petition both in the north and south of the borough. A total of 1,600 people signed the petition calling on the Clinical Commissioning Group to protect the NHS from privatisation.
"We also had an excellent turn out of people from throughout Sefton, including Southport, Formby, Crosby, Bootle and Maghull, who travelled to Bootle to hand the petition over to the North and South Sefton CCG leads.
"We are all very concerned about the Tory-Lib Dem NHS reforms, which is nothing short of privatisation by the back door.
"One of the biggest fears for 38 Degrees members, my fellow Labour colleagues and me is that the Tories and Lib Dems are prioritising profit over care - which goes against the principles upon which the post-war Labour Government set up the NHS.
"My biggest fear is that when private providers win NHS contracts it means the corresponding NHS service is deprived of money - this could lead to NHS departments being shut down and our local hospitals struggling due to lack of funds."
Cllr Killen said the meeting with the CCGs had been positive.
Cllr Killen said: "I'd like to thank all of the people who came along to hand the petition in and also Dr Niall Leonard and Dr Clive Shaw and their colleagues for taking the time out to speak to us.
"They clearly understand the concerns which we all have about the NHS changes and they are willing to listen to those concerns.
"Niall also offered to arrange a follow-up public meeting to discuss the issues in further detail - and it was another good turn-out at that meeting the following evening. We hope it will be the start of a continued dialogue between members of the public and CCGs.
"The NHS is a valued British institution. We cannot allow it to be broken up and privatised to the highest bidder. That is what we are fighting to prevent."