General hospital · Zaandam

Zaans Medisch Centrum

Wait times over the norm47%

42 of 90 over the norm

Result−€940,470

2025, margin -0.4%

Solvency17%

sector average 36% (2024)

Parking per hour€3.40

Zaandam

Locations

Stichting Zaans Medisch CentrumKoningin Julianaplein, 1502DV Zaandam

Wait times

Latest report: 27 October 2026. Over the norm first. The colour measures a wait against the Treeknorm, the position against the other hospitals: position 1 is the shortest.

Over the norm, every fortnight

Zaans Medisch CentrumAll hospitals

Waits against the norm, by kind

within the Treeknormover it, up to one and a half timesmore than one and a half timesnot reported

Treatments

For	Wait	Position	Median in the Netherlands25th–75th percentile
Meniscus or knee ligament surgerySurgery / Orthopaedics	361 days	55 of 55	50 days33–75 days
Breast reconstructionPlastic surgery	186 days	38 of 42	79 days52–130 days
Septoplasty (nasal septum surgery)ENT	160 days	50 of 61	81 days57–146 days
Peripheral nerve release (incl. carpal tunnel)Neurosurgery	121 days	19 of 19	46 days32–64 days
Varicose vein surgerySurgery	99 days	21 of 26	53 days31–87 days
Total knee replacementOrthopaedics	96 days	37 of 60	84 days45–117 days
Endovenous varicose vein treatmentDermatology	91 days	31 of 37	57 days42–78 days
CircumcisionUrology / Surgery	91 days	30 of 35	50 days31–74 days
Total hip replacementOrthopaedics	88 days	44 of 61	64 days42–90 days
VasectomySurgery / Urology	87 days	24 of 29	43 days28–63 days
Female sterilisationGynaecology	73 days	18 of 26	48 days35–89 days
Incontinence or prolapse surgery (women)Gynaecology	72 days	32 of 61	71 days48–117 days
Enlarged prostate surgeryUrology	68 days	31 of 57	61 days43–99 days
HysterectomyGynaecology	67 days	32 of 58	64 days42–89 days
Tonsil or adenoid removalENT	65 days	36 of 63	60 days42–82 days
Incontinence or bladder prolapse surgery (men)Urology	65 days	12 of 17	49 days32–68 days
Slipped disc or spinal stenosis surgeryNeurosurgery / Orthopaedics	65 days	32 of 44	55 days42–71 days
Carpal tunnel surgerySurgery / Plastic surgery / Orthopaedics	62 days	30 of 37	44 days21–59 days
Knee arthroscopyOrthopaedics	59 days	31 of 46	42 days27–63 days
Kidney stone removal through the skin (PCNL)Urology	53 days	14 of 25	49 days29–63 days
Surgery for benign anal conditionsSurgery / Dermatology	43 days	21 of 55	49 days33–80 days
Groin hernia repairSurgery	39 days	23 of 65	49 days28–91 days
Grommets (ear tubes)ENT	38 days	32 of 61	37 days29–51 days
Umbilical hernia repair in adultsSurgery	34 days	13 of 50	53 days34–97 days
Gallbladder removalSurgery	31 days	19 of 63	43 days30–64 days
Dupuytren's contracture surgeryPlastic surgery	28 days	5 of 45	66 days42–96 days
Cardiac catheterisationCardiology	27 days	28 of 42	21 days15–28 days
Trigger finger releasePlastic surgery	24 days	10 of 35	32 days23–51 days
Prostate cancer surgeryUrology	21 days	1 of 29	35 days25–50 days
Sleep apnoea treatmentENT / Respiratory medicine	18 days	3 of 17	42 days28–89 days
Kidney stone lithotripsyUrology	8 days	4 of 22	27 days14–37 days
IUI (intrauterine insemination)Gynaecology	2 days	5 of 28	9 days2–36 days
Stroke rehabilitationRehabilitation medicine	1 days	1 of 13	14 days10–35 days
Pulmonary rehabilitationRehabilitation medicine	1 days	1 of 9	12 days7–28 days

Outpatient clinic: first appointment

For	Wait	Position	Median in the Netherlands25th–75th percentile
Hearing loss and deafnessENT	110 days	45 of 47	25 days14–43 days
Gastroenterology (general)Gastroenterology	84 days	28 of 66	98 days50–148 days
Gynaecology (general)Gynaecology	84 days	38 of 68	72 days45–114 days
Urology (general)Urology	80 days	55 of 66	32 days20–60 days
Fertility problemsGynaecology	70 days	37 of 55	60 days38–80 days
ENT (general)ENT	65 days	63 of 66	21 days12–30 days
Rheumatology (general)Rheumatology	59 days	36 of 60	47 days29–90 days
EndocrinologyInternal medicine	52 days	28 of 49	48 days29–67 days
Pain managementAnaesthesiology	48 days	31 of 65	58 days23–90 days
Plastic surgery for cancerPlastic surgery	45 days	29 of 32	11 days7–21 days
AllergyInternal medicine	45 days	9 of 23	72 days34–143 days
Sleep centreOther	45 days	8 of 24	70 days43–125 days
Neurology (general)Neurology	42 days	14 of 67	64 days48–90 days
Slipped disc in the neckNeurology	42 days	3 of 34	59 days48–94 days
Neurosurgery (general)Neurosurgery	42 days	20 of 41	42 days22–63 days
Slipped disc in the backNeurology	42 days	4 of 37	57 days46–92 days
Slipped disc in the backNeurosurgery	42 days	8 of 22	46 days23–62 days
Slipped disc in the neckNeurosurgery	42 days	6 of 19	46 days39–67 days
Dermatology (general)Dermatology	39 days	35 of 66	35 days28–70 days
RehabilitationRehabilitation	35 days	19 of 40	36 days21–43 days
Internal medicine (general)Internal medicine	28 days	20 of 68	42 days24–61 days
Plastic surgery (general)Plastic surgery	25 days	34 of 63	24 days10–42 days
Geriatric medicineGeriatric medicine	25 days	28 of 63	28 days16–45 days
Paediatrics (general)Paediatrics	21 days	15 of 65	35 days21–57 days
Surgery (general)Surgery	19 days	44 of 66	14 days7–27 days
Vascular surgerySurgery	17 days	29 of 62	18 days10–30 days
Groin herniaSurgery	16 days	26 of 52	17 days7–28 days
Cardiology (general)Cardiology	15 days	16 of 68	28 days16–45 days
Incontinence in womenGynaecology	14 days	2 of 44	67 days49–91 days
Respiratory medicine (general)Respiratory medicine	13 days	17 of 68	28 days13–42 days
Oral and maxillofacial surgeryOral and maxillofacial surgery	11 days	12 of 57	31 days15–59 days
Paediatric neurologyPaediatrics	10 days	2 of 35	37 days22–47 days
NephrologyInternal medicine	8 days	4 of 51	33 days19–50 days
Back problemsOrthopaedics	7 days	5 of 42	24 days13–42 days
Foot and ankle problemsOrthopaedics	7 days	6 of 49	21 days11–50 days
ProctologySurgery	7 days	3 of 47	25 days13–48 days
Breast clinicSurgery	3 days	30 of 59	3 days2–5 days
Hip problemsOrthopaedics	1 days	1 of 51	14 days7–24 days
Suspicious skin lesionDermatology	1 days	1 of 48	13 days7–38 days
Knee problemsOrthopaedics	1 days	1 of 51	14 days7–31 days
Shoulder problemsOrthopaedics	1 days	1 of 48	20 days14–29 days

Tests

For	Wait	Position	Median in the Netherlands25th–75th percentile
ColonoscopyGastroenterology	37 days	43 of 61	28 days17–42 days
Sleep apnoea testingENT / Respiratory medicine / Neurology	29 days	13 of 40	45 days25–70 days
GastroscopyGastroenterology	28 days	33 of 61	26 days15–40 days
Sleep study (polysomnography)ENT / Respiratory medicine / Neurology	23 days	8 of 32	46 days25–68 days
CT scanRadiology	21 days	46 of 63	14 days9–22 days
Shoulder or arm MRIRadiology	14 days	17 of 59	20 days13–34 days
Abnormal cervical smearGynaecology	14 days	10 of 46	17 days14–30 days
Brain MRIRadiology	10 days	11 of 61	21 days11–35 days
Ultrasound scanRadiology	8 days	15 of 66	13 days8–17 days
Hip or leg MRIRadiology	7 days	8 of 64	20 days10–33 days
Back MRIRadiology	7 days	8 of 62	20 days13–33 days
Neck MRIRadiology	7 days	7 of 60	22 days13–33 days
Bone density scan (DEXA)Radiology	5 days	5 of 60	18 days12–38 days
MammogramRadiology	3 days	20 of 62	5 days2–10 days
X-rayRadiology	2 days	55 of 61	1 days0–1 days

Quality per treatment

Report year 2025, as the hospital reported it, beside the median of all hospitals.

Tonsil or adenoid removal

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Re-operation for bleeding within 14 days (tonsils)lower is better	4.3%	2.6%
Re-operation for bleeding within 14 days (adenoids)lower is better	0.0%	0.0%

Abdominal aortic aneurysm

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Aortic aneurysm or dissection repairsnumber per year	13	69
Died within 30 days after repair of a ruptured aneurysmlower is better	—	24.2%
Died within 30 days after repair of an intact aneurysmlower is better	1.8%	1.5%
Uncomplicated recovery after planned repair (textbook outcome)higher is better	80.0%	76.0%

Stroke

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Stroke patientsnumber per year	146	570
Median minutes from arrival to clot-busting treatmentlower is better	—	29

Breast implants

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Removed or replaced for a complication within 60 days (reconstruction)lower is better	0.0%	2.6%
Removed or replaced for a complication within 60 days (cosmetic)lower is better	0.0%	0.0%
Removed or replaced for a complication, day 61 to 365 (reconstruction)lower is better	4.3%	3.3%
Removed or replaced for a complication, day 61 to 365 (cosmetic)lower is better	0.0%	0.0%

Breast cancer

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Breast cancer patients operated onnumber per year	157	216
Surgical oncologists treating breast cancernumber of specialists	3	4
Plastic surgeons treating breast cancer patientsnumber of specialists	2	3
Median days from diagnosis to start of treatmentlower is better	30	32

Chronic kidney disease and dialysis

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Started dialysis with a working fistula or PD catheterhigher is better	60.0%	64.2%

Bowel cancer

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Colon cancer resectionsnumber per year	44	78
Rectal cancer resectionsnumber per year	—	30
Died within 90 days of rectal surgerylower is better	—	0.0%
Complicated recovery after colon surgerylower is better	15.4%	11.6%
Complicated recovery after rectal surgerylower is better	—	20.2%
Died within 90 days of colon surgerylower is better	1.7%	2.2%
Median days from diagnosis to treatment (colon)lower is better	33	36.8

Diabetes

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Diabetes patients treated by the paediatriciannumber per year	—	99
Diabetes patients treated by the internistnumber per year	994	1,350
Paediatrician: blood sugar on target (HbA1c below 58)higher is better	—	47.8%
Internist: blood sugar on target (HbA1c below 58)higher is better	38.4%	42.3%
Paediatrician: blood sugar far too high (HbA1c above 86)lower is better	—	5.9%
Internist: blood sugar far too high (HbA1c above 86)lower is better	5.4%	5.3%

Peripheral arterial disease

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Certified vascular surgeonsnumber of specialists	3	4
Vascular interventional radiologistsnumber of specialists	2	4

Gallbladder removal (gallstones)

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Readmitted for a complication within 30 days of surgerylower is better	1.0%	2.8%

Hip fracture

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Hip fractures treatednumber per year	193	293
Mobility score after 3 months, fully mobile before (1 = best)lower is better	2.6	2.6
ADL help needed after 3 months, independent before (0 = none)lower is better	1.1	1.3

Gynaecological cancer

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Debulking operations for ovarian cancernumber per year	0	60
Operations for endometrial cancernumber per year	24	64
Tumour fully removed at primary debulking (ovary)higher is better	—	90.8%
Complicated recovery after ovarian debulking (adjusted)lower is better	—	6.9%
Complicated recovery after keyhole hysterectomy (adjusted)lower is better	4.6%	0.0%
Died within 30 days of ovarian debulking (adjusted)lower is better	—	0.0%
Median days from first visit to debulking surgerylower is better	—	35.2

Slipped disc or spinal stenosis

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Re-operation within 30 dayslower is better	0.0%	0.4%
Spinal fluid leak during surgerylower is better	0.0%	0.3%
Deep wound infectionlower is better	3.7%	0.0%
More muscle weakness right after surgerylower is better	1.2%	0.0%

Hip replacement

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Hip replacementsnumber per year	286	421
Orthopaedic surgeons performing hip revisionsnumber of specialists	4	4
Orthopaedic surgeons placing hip replacementsnumber of specialists	3	5
Deep wound infection within 90 dayslower is better	0.0%	0.7%
Average hip score gain (OHS) after 12 monthshigher is better	20.2	18.6
Average drop in pain when active after 12 monthshigher is better	6.0	5.8
Revision within 1 year (adjusted)lower is better	0.9%	0.9%

Incontinence or prolapse in women

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Much or very much better after surgeryhigher is better	100.0%	90.8%

Cancer care (general)

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Kidney cancer operationsnumber per year	—	54
Colon resectionsnumber per year	83	131
Rectal resectionsnumber per year	0	46
Resections of liver metastasesnumber per year	—	36
Thyroid cancer patients operated onnumber per year	6	18
Gynaecologic oncologists in FTEnumber of specialists	—	2.6

Knee replacement

Indicator	Zaans Medisch Centrum	Median in the Netherlands
Total knee replacementsnumber per year	333	310
Partial knee replacementsnumber per year	63	79
Orthopaedic surgeons performing knee revisionsnumber of specialists	2	3
Orthopaedic surgeons placing knee replacementsnumber of specialists	3	5
Deep wound infection within 90 dayslower is better	0.0%	0.4%
Average knee score gain (OKS) after 12 monthshigher is better	16.0	15.3
Average drop in pain when active after 12 monthshigher is better	5.1	4.9
Revision within 3 years (adjusted)lower is better	0.0%	1.3%

Annual accounts

Figures of Stichting Zaans Medisch Centrum, from its public annual accounts.

Year	Revenue	Costs	Result	Margin	Equity	Solvency	Cash
2025filed 28 May 2026	€236 m	€233 m	−€940,470	-0.4%	€33 m	17.0%	€3.4 m
2024filed 29 December 2025	€220 m	€216 m	−€809,639	-0.4%	€33 m	16.4%	€1.7 m
2023filed 30 May 2024	€204 m	€200 m	−€1.4 m	-0.7%	€34 m	17.2%	€1.3 m
Sector average, General hospital (2024)
2024	—	—	—	2%	—	36%	—

Staff

Year	Care staff	Sick leave	Long-open vacancies
2025	967	6.9%	11
2024	951	6.8%	5
2023	—	—	—

Care staff: the average number of people in care. Sick leave: the care staff's sickness absence. Long open: vacancies open for three months or more.

Board and supervision

As the register lists them with the annual accounts for 2025.

Board of directors

Anja BlonkBestuurder · since 1 November 2021
Margaretha Françoise Maria Shekary - MoonenBestuurder · since 1 February 2024

Supervisory board

Dirk de KruifVoorzitter Raad van Toezicht · since 1 January 2023
Adriana Dorothea Agatha van Beijnum - AkkermansLid Raad van Toezicht · since 1 January 2018
Alexander Bernard BaaijCommissaris · since 31 May 2021
Jacoba Adriana van WijngaardenLid van het toezichthoudend orgaan · since 31 May 2021
Lya Levert - BrandLid Raad van Toezicht · since 1 December 2022

Parking

Zaandam

€3.40 an hour. The first 30 minutes free. Daily maximum €7.50.

Interparking rate, linked from the hospital's site: 45 minutes €2.40, then €1.00 per 15 minutes.

Read on the hospital's website, 2 November 2026.