Markham Stouffville Hospital
Oak Valley Health
381 Church Street, PO Box 1800, Markham, L3P 7P3
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Emergency department
2 hr 35 minLive, updated 8 min ago
Predicted wait to see a doctor, from the hospital’s own wait time page. The hospital's own computer forecast, rounded to the half hour.
Last month’s averages, August 2026. All ER waits
| Measure | This hospital | Ontario average |
|---|---|---|
| To see a doctorAverage from triage or registration to a doctor. | 1 hr 30 min | 2 hr 6 min |
| In the ER, low urgency, sent homeTarget 4 hours. | 2 hr 24 min | 3 hr 12 min |
| In the ER, high urgency, sent homeTarget 8 hours. | 3 hr 48 min | 4 hr 48 min |
| In the ER before admissionTarget 8 hours. | 18 hr 42 min | 18 hr 30 min |
Common surgeries
| Surgery | Days to see surgeon | Days to surgery | Total days | Ontario average | Last 12 months |
|---|---|---|---|---|---|
| Hip replacement | 43 | 111 | 154 | 189 | ↓ 52 |
| Knee replacement | 68 | 149 | 217 | 213 | ↑ 1 |
| Gallbladder removal | 30 | 60 | 90 | 111 | ↓ 29 |
| Groin hernia repair | 62 | 80 | 142 | 149 | ↓ 14 |
| Thyroid surgeryApr to Jun 2026 | 23 | 31 | 54 | 173 | No 12-month trend |
| Kidney stone removalApr to Jun 2026 and Aug 2026 | 32 | 19 | 51 | 79 | No 12-month trend |
- Hip replacementSee surgeon 43 · Surgery 111 · Ontario 189154 days52 days shorter than in Sep 2025
- Knee replacementSee surgeon 68 · Surgery 149 · Ontario 213217 days1 day longer than in Sep 2025
- Gallbladder removalSee surgeon 30 · Surgery 60 · Ontario 11190 days29 days shorter than in Sep 2025
- Groin hernia repairSee surgeon 62 · Surgery 80 · Ontario 149142 days14 days shorter than in Sep 2025
- Thyroid surgeryApr to Jun 2026See surgeon 23 · Surgery 31 · Ontario 17354 days
- Kidney stone removalApr to Jun 2026 and Aug 2026See surgeon 32 · Surgery 19 · Ontario 7951 days
Scans
Other surgeries
| Surgery | Days to see surgeon | Days to surgery | Total days | Ontario average | Last 12 months |
|---|---|---|---|---|---|
| Anorectal proceduresApr to Jun 2026 | 126 | 51 | 177 | 167 | No 12-month trend |
| AppendixApr 2025 to Mar 2026 | 33 | 59 | 92 | 89 | No 12-month trend |
| Digestive systems (all types) | 30 | 63 | 93 | 116 | ↓ 19 |
| Head and neck reconstructiveApr 2025 to Mar 2026 and Oct 2025 to Mar 2026 | 5 | 21 | 26 | 102 | No 12-month trend |
| Hernia (abdominal wall, not in groin) | 86 | 83 | 169 | 160 | ↓ 11 |
| Hernia (all types) | 70 | 81 | 151 | 154 | ↓ 18 |
| Hip (all types) | 43 | 111 | 154 | 192 | ↓ 52 |
| Kidney/renal pelvis/ureter (all types) | 35 | 19 | 54 | 77 | ↑ 4 |
| Knee (all types) | 73 | 133 | 206 | 193 | ↓ 10 |
| Knee arthroscopy | 90 | 79 | 169 | 138 | ↓ 49 |
| Lumbar disc surgery (lower back, orthopaedic)Apr to Jun 2026 | 163 | 89 | 252 | 154 | No 12-month trend |
| Nose and sinusApr to Jun 2026 | 62 | 100 | 162 | 207 | No 12-month trend |
| Oral cavity (benign)Apr 2025 to Mar 2026 | 36 | 60 | 96 | 207 | No 12-month trend |
| Ovarian (benign)Apr to Jun 2026 | 103 | 57 | 160 | 203 | No 12-month trend |
| Palmar fascia excision for Dupuytren’s diseaseOct 2025 to Mar 2026 | 30 | 58 | 88 | 176 | No 12-month trend |
| PenileApr to Jun 2026 | 94 | 39 | 133 | 182 | No 12-month trend |
| Sino-nasal (all types) | 107 | 102 | 209 | 312 | ↑ 28 |
| Upper extremity reconstructiveApr to Jun 2026 and Aug 2026 | 30 | 63 | 93 | 173 | No 12-month trend |
| Uterine (benign) excluding prolapse (all types) | 90 | 76 | 166 | 194 | ↓ 6 |
- Anorectal proceduresApr to Jun 2026See surgeon 126 · Surgery 51 · Ontario 167177 days
- AppendixApr 2025 to Mar 2026See surgeon 33 · Surgery 59 · Ontario 8992 days
- Digestive systems (all types)See surgeon 30 · Surgery 63 · Ontario 11693 days19 days shorter than in Sep 2025
- Head and neck reconstructiveApr 2025 to Mar 2026 and Oct 2025 to Mar 2026See surgeon 5 · Surgery 21 · Ontario 10226 days
- Hernia (abdominal wall, not in groin)See surgeon 86 · Surgery 83 · Ontario 160169 days11 days shorter than in Nov 2025
- Hernia (all types)See surgeon 70 · Surgery 81 · Ontario 154151 days18 days shorter than in Sep 2025
- Hip (all types)See surgeon 43 · Surgery 111 · Ontario 192154 days52 days shorter than in Sep 2025
- Kidney/renal pelvis/ureter (all types)See surgeon 35 · Surgery 19 · Ontario 7754 days4 days longer than in Oct 2025
- Knee (all types)See surgeon 73 · Surgery 133 · Ontario 193206 days10 days shorter than in Sep 2025
- Knee arthroscopySee surgeon 90 · Surgery 79 · Ontario 138169 days49 days shorter than in Sep 2025
- Lumbar disc surgery (lower back, orthopaedic)Apr to Jun 2026See surgeon 163 · Surgery 89 · Ontario 154252 days
- Nose and sinusApr to Jun 2026See surgeon 62 · Surgery 100 · Ontario 207162 days
- Oral cavity (benign)Apr 2025 to Mar 2026See surgeon 36 · Surgery 60 · Ontario 20796 days
- Ovarian (benign)Apr to Jun 2026See surgeon 103 · Surgery 57 · Ontario 203160 days
- Palmar fascia excision for Dupuytren’s diseaseOct 2025 to Mar 2026See surgeon 30 · Surgery 58 · Ontario 17688 days
- PenileApr to Jun 2026See surgeon 94 · Surgery 39 · Ontario 182133 days
- Sino-nasal (all types)See surgeon 107 · Surgery 102 · Ontario 312209 days28 days longer than in Sep 2025
- Upper extremity reconstructiveApr to Jun 2026 and Aug 2026See surgeon 30 · Surgery 63 · Ontario 17393 days
- Uterine (benign) excluding prolapse (all types)See surgeon 90 · Surgery 76 · Ontario 194166 days6 days shorter than in Sep 2025