CM4 GP catchment: which practices serve the CM4 postcode district
12,001 people living in the CM4 postcode district are registered with a GP (July 2026), 95% of them at 10 practices. The practice with the most is The New Folly Surgery in Ingatestone, with 7,039 (59%). The 3 largest together hold 89% of the district's registrations.
Latest data: July 2026. Registered patients by neighbourhood July 2026; GP Patient Survey 2026.
These are the practices people living in CM4 are actually registered with, from NHS England's count of registered patients by neighbourhood; a practice's own catchment boundary can be wider or narrower. The district is mostly in Brentwood and Chelmsford.
| Practice | Town | Residents registered | Share | Overall experience good | CQC rating |
|---|---|---|---|---|---|
| The New Folly Surgery | Ingatestone | 7,039 | 59% | 66% | Good |
| Stock Surgery | Ingatestone | 2,340 | 19% | 91% | Good |
| Deal Tree Health Centre | Brentwood | 1,253 | 10% | 88% | Good |
| Dr S Neill and Partners | Brentwood | 167 | 1% | 83% | Good |
| Ongar War Memorial Medical Centre | Ongar | 142 | 1% | 72% | Good |
Across the 5 practices serving CM4 with survey results, the share of patients describing their overall experience as good ranges from 66% at The New Folly Surgery to 91% at Stock Surgery, with a median of 83% (England: 77%). 2 are above England and 1 below by more than the survey's margin of error. Stock Surgery has the highest share finding it easy to get through by phone (85%, England 57%).
Which GP practices serve CM4?
The New Folly Surgery, Stock Surgery, Deal Tree Health Centre, Dr S Neill and Partners and Ongar War Memorial Medical Centre have the most registered patients living in CM4.
How many people in CM4 are registered with a GP?
12,001, 95% of them at 10 practices.
Which GP near CM4 do patients rate highest?
Among the practices serving the district, Stock Surgery: 91% of its patients rated their overall experience good in the 2026 GP Patient Survey.