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Northwell Labs at Lake Success

Patient Service Center

1991 Marcus Avenue, Suite M113

Lake Success, NY 11042

(516) 442-2838

There are no visit times available for online scheduling right now. If this message appears during normal office hours, you can still come to the facility and you'll be seen based on the order of arrival.

Welcome to the online scheduling for Northwell Health Labs at 1991 Marcus Ave.

Please provide your information below and we’ll reserve your time slot until your estimated arrival time. Appointments take priority, but walk ins are welcome.

Please note, Glucose Tolerance Tests need to be scheduled as it may take up to three hours to complete the testing. There is limited appointment availability.

For your convenience, you will receive updates and reminder text messages about your lab visit once your time slot is confirmed.

Thank you for choosing Northwell Health Labs.

Click here for hours of operation & additional information!

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