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Contacting ONVZ

ONVZ is always ready and willing to assist you - by telephone, via the contact form or through a visit.

Important telephone numbers

General questions: +31 (0)30 639 62 22

For general questions about your health insurance policy, please call our Service Centre.

Health-care mediation:+31 (0)800 022 14 50

If you have any questions about waiting list mediation, or would like advice and information on health, illnesses and prevention, please contact our ZorgConsulent team.

Personal support with health-care issues: +31 (0)800 668 96 60

If you would like information about possible treatment methods, hospital operations, a second opinion or a health check, please contact our ZorgConsulent team.

Maternity care: +31 (0)79 343 04 64

If you are pregnant and would like to request maternity care, please contact the ONVZ Kraamzorg Service.

Emergency medical assistance abroad: +31 (0)88 668 97 67

In the event of emergency hospitalisation abroad, you can contact the ONVZ Zorgassistance 24-hour service. You can also find this telephone number on your health insurance card.

If you live in the USA or Canada, you can contact ONVZ Zorgassistance for local health-care (both planned and unforeseen) at:

ONVZ Zorgassistance Canada
c/o World Access
4273 King St East
Kitchener, ON
N2P 2E9 Canada
T: +1-866-6730492
F: +1-519-7428720

Visitors’ address

ONVZ Zorgverzekeraar
De Molen 66
3995 AX  Houten

Postal address:

ONVZ Zorgverzekeraar
Postbus 392
3990 GD  Houten
T: +31 (0)30 639 62 22
F: +31 (0)30 635 12 75


Tel +31 (0)30 639 62 22

Mon-Fri 08:30 - 21:00

Sat 09.00 - 13:00

Full contact details
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