Dr Sinnadurai Thillainathan, London: patient reviews and CQC rating
Dr Sinnadurai Thillainathan is a GP practice in London with 7,906 registered patients (September 2026). In the 2026 GP Patient Survey, 72% of its patients described their overall experience as good, against 77% across England (West and North London: 75%). The Care Quality Commission rates it Requires Improvement overall, in a report published in December 2023. It has 5.1 full-time-equivalent qualified GPs, or 1,552 patients per GP.
Latest data: September 2026. Patient survey 2026; registered patients September 2026; appointments to August 2026.
What patients say about Dr Sinnadurai Thillainathan
Its result closest to England is the share who said their needs were met at their last appointment: 89%, against 90% across England. Its weakest is the share who found it easy to contact the practice through its website: 40%, below the England figure of 58%. Of the 11 results in the table, 0 are above England and 5 below by more than the survey's margin of error, and 6 within it.
On overall experience it is 460th of the 648 practices in London with 50 or more responses. 52% found it easy to get through by phone (England: 57%). The overall experience result is 13 points higher than in 2025 (59%). 98 patients answered the survey (response rate 13%).
| Survey question | Dr Sinnadurai Thillainathan | West and North London | England |
|---|---|---|---|
| Overall experience good | 72% | 75% | 77% |
| Easy to contact by phone | 52% | 62% | 57% |
| Easy to contact via the website | 40% | 57% | 58% |
| Easy to contact via the NHS App | 43% | 54% | 54% |
| Reception team helpful | 74% | 83% | 85% |
| Last contact good | 67% | 73% | 73% |
| Wait for appointment about right | 63% | 68% | 69% |
| Listened to well | 76% | 86% | 87% |
| Treated with care and concern | 74% | 84% | 86% |
| Confidence and trust in the clinician | 85% | 92% | 93% |
| Needs met | 89% | 89% | 90% |
CQC's overall rating for Dr Sinnadurai Thillainathan is Requires Improvement, published in December 2023. 3 key questions are rated differently: Well-led Good, Caring Good and Effective Good. Its previous overall rating was Good (December 2016).
| Key question | Rating |
|---|---|
| Safe | Requires Improvement |
| Well-led | Good |
| Caring | Good |
| Responsive | Requires Improvement |
| Effective | Good |
7,906 patients were registered at Dr Sinnadurai Thillainathan in September 2026, down 2.8% on a year earlier (England: down 1.1%).
9% of its patients are aged 65 or over, against 19% across England. With 5.1 full-time-equivalent qualified GPs, there are 1,552 patients per GP, fewer than the England figure of 2,171 and West and North London's 2,497. The practice also has 0.5 nurses and 0.3 other clinical staff such as pharmacists and physiotherapists (full-time equivalent).
| Year | Qualified GPs (FTE) | All GPs incl. trainees (FTE) |
|---|---|---|
| August 2023 | 4.9 | 4.9 |
| August 2024 | 4.9 | 4.9 |
| August 2025 | 4.9 | 4.9 |
| August 2026 | 5.1 | 5.1 |
From June 2026 to August 2026 the practice recorded 2,865 appointments a month, or 362 per 1,000 registered patients (England: 510). 55% were face to face (England: 63%). 38% took place on the day they were booked and 0% more than 28 days after booking (England: 45% and 5%).
50% were with a GP rather than another member of the practice team. 10% of booked patients did not attend.
| Measure | Dr Sinnadurai Thillainathan | West and North London | England |
|---|---|---|---|
| Appointments per 1,000 patients a month | 362 | 469 | 510 |
| Face to face | 55% | 60% | 63% |
| Same day as booked | 38% | 48% | 45% |
| More than 28 days after booking | 0% | 2% | 5% |
| Did not attend | 10% | 5% | 4% |
Compared with England, the practice has a higher share of patients on its registers for serious mental illness (1.8% against 1.0%). It has a lower share for palliative or supportive care needs (0.1% against 0.6%), atrial fibrillation (0.6% against 2.2%) and COPD (0.6% against 1.9%). The practice's patients live in areas with an average deprivation score of 23.9 (England: 21.8; higher is more deprived).
Life expectancy for its patients' neighbourhoods is 85.9 years for women and 81.4 for men (England: 83.0 and 79.1).
| Condition register | Age group | Practice (2024/25) | England |
|---|---|---|---|
| Depression | 18+ yrs | 10.5% | 14.3% |
| High blood pressure | All ages | 8.9% | 15.2% |
| Diabetes | 17+ yrs | 6.3% | 7.9% |
| Asthma | 6+ yrs | 3.7% | 6.6% |
| Chronic kidney disease | 18+ yrs | 2.9% | 4.6% |
| Cancer | All ages | 2.1% | 3.8% |
| Serious mental illness | All ages | 1.8% | 1.0% |
| Coronary heart disease | All ages | 1.5% | 3.0% |
| Stroke and TIA | All ages | 0.8% | 1.9% |
| COPD | All ages | 0.6% | 1.9% |
| Atrial fibrillation | All ages | 0.6% | 2.2% |
| Osteoporosis | 50+ yrs | 0.5% | 1.2% |
| Learning disability | All ages | 0.5% | 0.6% |
| Heart failure | All ages | 0.4% | 1.1% |
| Epilepsy | 18+ yrs | 0.4% | 0.8% |
| Dementia | All ages | 0.3% | 0.8% |
| Peripheral arterial disease | All ages | 0.3% | 0.6% |
| Rheumatoid arthritis | 16+ yrs | 0.3% | 0.8% |
| Palliative care | All ages | 0.1% | 0.6% |
| Screening coverage | Period | Practice | England |
|---|---|---|---|
| Bowel cancer screening (aged 60 to 74) | 2024/25 | 53.2% | 72.9% |
| Breast cancer screening (women aged 53 to 70) | 2024/25 | 46.5% | 72.2% |
| Cervical screening (women aged 25 to 49) | 2023/24 | 52.4% | 67.5% |
| Cervical screening (women aged 50 to 64) | 2023/24 | 56.9% | 74.9% |
Dr Sinnadurai Thillainathan, 269 Bowes Road, Southgate, London, N11 1BD. Phone: 020 8368 4455. Website: www.arnosgrovemedicalcentre.nhs.uk.
| Nearby practice | Distance | Overall experience good |
|---|---|---|
| Bounds Green Group Practice | 1.0 km | 76% |
| Dr Howard Daitz | 1.2 km | 74% |
| Grovelands Medical Centre | 1.4 km | 73% |
| Cheshire Road Surgery | 1.4 km | 83% |
| Arcadian Gardens Surgery | 1.6 km | 72% |
- Bincote Surgery (82% overall experience good)
- Dr Howard Daitz (74% overall experience good)
- Dr Malarvili Theivacumar (74% overall experience good)
- Gillan House Surgery (81% overall experience good)
- The Woodberry Practice (87% overall experience good)
How do patients rate Dr Sinnadurai Thillainathan?
In the 2026 GP Patient Survey, 72% of patients described their overall experience of Dr Sinnadurai Thillainathan as good, against 77% across England. 52% found it easy to get through by phone.
How many patients are registered at Dr Sinnadurai Thillainathan?
7,906 patients were registered in September 2026, down 2.8% on a year earlier.
What is Dr Sinnadurai Thillainathan's CQC rating?
Requires Improvement overall, published in December 2023.
How many GPs does Dr Sinnadurai Thillainathan have?
5.1 full-time-equivalent qualified GPs (4 qualified GPs by headcount), which is 1,552 patients per GP against 2,171 across England.
Are appointments at Dr Sinnadurai Thillainathan face to face?
55% of appointments from June 2026 to August 2026 were face to face, against 63% across England.
What is Dr Sinnadurai Thillainathan's phone number?
020 8368 4455.