Customer Service

Do you want to place an order, check status on an order or simply need a part number? If so, we’re here to help! Masimo is committed to providing the highest quality service in the industry. During non-business hours and on Masimo-observed holidays, you can expect a return call from a qualified customer service representative by the next business day. See below for availability and local contact numbers.

Region Availability How to Reach Us
United States 6:00AM to 5:00PM,
PST Mon-Fri (800) 326-4890 x1
Canada 8:30AM to 4:30PM,
EST Mon-Fri (888) 336 0043 x2
Japan 9:00AM to 6:00PM,
JST Mon-Fri +81 47 328 5401
Europe, Middle East & Africa 8:00AM to 5:00PM,
CET Mon-Fri +41 32 720 1188
Asia-Pacific 9:00AM to 5:00PM,
SGT Mon-Fri +65 6521 6700