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Certification Verification System

Welcome to the Oncology Nursing Certification Corporation Online Credential Verification System.

This free service is provided by ONCC to assist individuals and organizations requiring verification of a nurse's individual ONCC Certification status. Names of nurses currently certified by ONCC are available to the public. The only information that will be provided via this service is the name of the certified nurse, home city/state, and certification status. Confidential information that will not be released includes names of candidates registered to take a certification examination, names of nurses who fail the examination, and individual test scores of candidates.

ONCC can provide primary source verification for OCN®, AOCN®, AOCNP®, AOCNS®, CPON®, CPHON®, CBCN® and BMTCN® certification status. ONCC cannot provide primary source verification for the educational preparation or professional experience of a specific individual.

Third party requests for credential verifications that require completion of a verification form or verification on official letterhead, must request the verification in writing, include a $15 fee, and include the nurse's full name and home address. Please send requests for written verification to:

Oncology Nursing Certification Corporation
125 Enterprise Drive
Pittsburgh, PA 15275
Phone: 877-769-6622 (toll free); 412-859-6104
Fax: 412-859-6168

Note: Chemotherapy/Biotherapy Provider Status
The Chemotherapy/Biotherapy Provider Program is administered by the Oncology Nursing Society (ONS). Verification of Chemotherapy/Biotherapy provider status cannot be completed using this online system. For requests to verify the status of a Chemotherapy/Biotherapy provider, please contact the ONS Education Team at or 866-257-4667 ext 8326.