Contact Us

NNAS Corporate Office 

Our corporate office, located in Toronto, Canada, is conveniently located on University Avenue, amidst Toronto's major research and teaching hospitals. Please note, we cannot help you with application or account queries at this telephone number or email address - please call the support numbers below for help with this. 

Our Mailing Address:

National Nursing Assessment Service
439 University Avenue
5th Floor, Suite 546
M5G 1Y8

Note: Internationally Educated Nurses (IENs) please do not send your documentation to this corporate office. (Only send them to the National Nursing Assessment Service's centre seen below).


Internationally Educated Nurses (IENs) Contact Number / Email for inquiries and support

  • Phone Toll Free: (855) 977-1898
  • If the toll free number is not available in your area please call: +1 (215) 349-9370
  • Email:

Mailing Address for IEN Documentation / Correspondence

Our Mailing Address:

National Nursing Assessment Service 
Post Office Box 8658 
Philadelphia, PA 19101-8658, USA

Our Courier Address:    

National Nursing Assessment Service 
3600 Market Street, Suite 400
Philadelphia, PA 19104-2651, USA

Hours of Operation

  • Monday through Friday 8 a.m. to 4 p.m. Eastern Time