Results for the UK general election on 7 May 2015 England - Elections contested by National Health Action Party
| Constituency | Candidate | Electorate | Turnout | Votes | Vote share | Vote change | Position |
| South West Surrey | IRVINE, Louise | 77,548 | 73.7% | 4,851 | 8.5% | - | 4th |
| Stafford | HOWELL, Karen | 68,705 | 71.0% | 1,701 | 3.5% | - | 4th |
| East Worthing and Shoreham | WALKER, Carl | 74,775 | 66.7% | 1,243 | 2.5% | - | 6th |
| Old Bexley and Sidcup | GILL, Bob | 66,035 | 70.8% | 1,216 | 2.6% | - | 6th |
| Banbury | EDWARDS, Roseanne | 86,420 | 67.1% | 729 | 1.3% | - | 6th |
| Oxford West and Abingdon | SALISBURY, Helen | 76,174 | 75.2% | 723 | 1.3% | - | 6th |
| Witney | PEEDELL, Clive | 79,767 | 73.3% | 616 | 1.1% | - | 6th |
| Maidstone and The Weald | HOBDAY, Paul | 73,181 | 68.3% | 583 | 1.2% | - | 6th |
| Truro and Falmouth | EVANS, Rik | 73,601 | 70.0% | 526 | 1.0% | - | 8th |
| Camberwell and Peckham | FOX, Rebecca | 82,746 | 62.3% | 466 | 0.9% | - | 7th |
| Sutton and Cheam | ASH, Dave | 69,228 | 72.1% | 345 | 0.7% | - | 6th |
Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.