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NNCO Practice Tests & Test Prep by Exam Edge

At we take great pride in our practice tests and their ability to help you pass your National Nephrology Certification Organization certification exam. We are confident in our ability to help you pass your NNCO exam and look forward to helping you achieve your goals.

We offer 5 different exams utilizing 500 unique questions specifically designed to help you pass your NNCO certification exam. Our practice tests simulate the actual testing experiences by covering the required competencies and incorporating content and the application of skills necessary for you to be ready for opportunities requiring certification by the NNCO .

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Who is National Nephrology Certification Organization ?

The NNCO, or National Nephrology Certification Organization, is a professional body that offers certification exams for healthcare professionals specializing in nephrology, the study of kidney function and treatment of kidney diseases. Their certification exams validate the knowledge and skills of professionals in this field and are recognized as a mark of excellence.

Step 1: Eligibility and Application

To be eligible for NNCO certification exams, you must have a certain level of education and professional experience related to nephrology. Detailed eligibility requirements for each specific certification exam can be found on the NNCO's official website. Once you've determined your eligibility, you can complete the application process online through the website. This typically involves filling out a form with your personal and professional details, and paying an application fee.

Step 2: Scheduling the Exam

Once your application is approved, you will receive an Authorization to Test (ATT) via email. This allows you to schedule your exam at a PSI testing center, which are located across the United States. You can find a convenient location and choose a suitable date and time for your exam through the scheduling portal on the PSI website.

Step 3: Taking the Exam

The exam will be taken at your chosen PSI testing center. Make sure to arrive early and bring the necessary identification. The exam format and content will depend on the specific certification you're seeking, but all exams are designed to test your knowledge and skills in nephrology. You will receive your results immediately after completing the exam.

For more detailed information on the NNCO and its certification exams, you can visit their official website at