Under the previous health service structure, primary care trusts would alert all practices in the local area if there was an individual visiting multiple practices to request specific drugs.
MPs have said that the highlighting of so-called 'doctor shopping' now needs to be "formalised" in order for it to continue with the structural changes in healthcare in UK.
A report recommended that NHS England should issue guidance to local clinical commissioning groups (CCGs), so they take on the gathering of data on patients visiting multiple practices to request specific drugs.
There are currently 1.5 million people addicted to prescription drugs in the UK. The abuse of these types of substances is taking place in the shadows and its extent is still unquantified.
Local GPs need to report their suspicions and collate information to illuminate this problem.
– Keith Vaz MP, Committee chair
Lack of action would lead to "catastrophic consequences", Mr Vaz said.
The committee cited work by the All Party Parliamentary Group for Involuntary Tranquilliser Addiction which estimates that 1.5 million people are addicted to these type of drugs, far higher than those who are in treatment for addiction to illegal drugs.
Around 6% of public tip-offs about illegal immigration lead to an investigation and only 1.5% results in a person being removed from the country, according to a Home Affairs Select Committee report.
The report also said the now-defunct UK Border Agency (UKBA) had a backlog of 432,029 immigration and asylum cases when it was scrapped at the end of March, which at current levels will take five years to clear.
The Metropolitan Police had full access to all material relating to the Serious Organised Crime Agency's (Soca's) investigation into blagging of private details, which led to the jailing of four private investigators, the agency said.
A spokesman for the Met confirmed detectives received all of Soca's information from Operation Millipede between May and December 2011, but said:
This was essentially huge quantities of electronic data, the hard drives of which were supplied to the MPS.
This material was only put into list format for the Home Affairs Select Committee, and the MPS only provided with the information in that format on July 30.
The statement from the Met added:
In common with Soca, the MPS is not alleging that the individuals or companies on the list have, or even may have, committed a criminal offence.
The MPS is checking the list against its open investigations and will inform the committee when this is complete.
House of Commons Home Affairs Committee chairman Keith Vaz has said it is "very surprising" that the list of firms linked to rogue private investigators was not shared with the Met given the investigations into alleged hacking.
Detectives are carrying out inquiries codenamed Weeting, Elvedon and Tuleta into allegations of phone-hacking, illicit payments to public officials and computer-hacking by journalists, some linked to private investigators.
The Serious Organised Crime Agency (Soca) provided Mr Vaz's committee with the list - containing 102 firms and individuals, including blue chip companies, law firms and financial services groups - on condition that the names are not revealed.
But following the shock resignation of Soca chairman Sir Ian Andrews, Mr Vaz has said he will ask his successor to review the decision. He today said that Soca should act with "urgency", arguing that further delay would be unfair to those on the list who want the affair cleared up.