About Maria Leik – NP Review Course Instructor & Author

Maria Codina Leik – Helping NPs Pass Their Certification Exams with Confidence

Portrait of Maria Leik, board-certified Nurse Practitioner and expert in NP certification review courses for FNP and AGNP exams

Hi, I’m Maria Codina Leik, your NP review course instructor and a Nurse Practitioner dedicated to helping future colleagues succeed. For more than 25 years, I’ve guided aspiring NPs like you to feel prepared, confident, and supported as you take one of the most important steps in your career.

My journey in nursing and education has been incredibly rewarding. I’ve taught thousands of Nurse Practitioner students across the U.S. and Canada through live review courses, study guides, and strategies that make complex topics clear. Nothing brings me more joy than hearing, “I passed!” and knowing I helped make that possible.

I’m board-certified by both the ANCC and AANPCB, and I’ve served as adjunct faculty at Florida International University in the FNP program while also practicing as a clinical NP. These experiences shaped how and why I teach.

I’m also the author of two best-selling certification review books — Family Nurse Practitioner Certification Intensive Review and Adult Nurse Practitioner Certification Intensive Review (Springer Publishing, NY) — and have contributed to other leading textbooks.

Beyond credentials, what matters most is your success. Whether you’re starting your studies or preparing for exam day, I’m here to guide you with clarity, structure, and encouragement. You’ve got this — and I’ve got you.

The Gold Standard in NP Certification Prep 20+ Years of Proven Success

Maria Leik Nurse Practitioner
Intensive Review Course

Are you ready to pass your boards with confidence? You’re in the right place.

For over 25 years, Maria Codina Leik has been a trusted guide for thousands of Nurse Practitioner (NP) students preparing for their certification exams. Through her intensive, high-yield review courses, proven study strategies, and best-selling books, Maria has helped future NPs across the U.S. and Canada achieve success — and start their careers strong.

Whether you’re preparing for the AANP or ANCC exam, our Family Nurse Practitioner (FNP) and Adult-Gerontology Nurse Practitioner (AGNP) courses break down complex topics into easy-to-understand concepts — giving you the clarity, confidence, and tools you need to pass.

Led by Maria herself — founder, president, and lead lecturer of National ARNP Services, INC. — our program is known as “The Gold Standard in NP Certification Prep.” This is more than just a review course. It’s a proven path to success, built on decades of real-world clinical experience and a passion for helping NPs thrive.

Why Choose Us?

  • Trusted by thousands of NP students nationwide
  • Taught by a nationally recognized nurse educator
  • Includes comprehensive study materials and test-taking strategies
  • Designed to help you pass on your first try

Ready to Get Started?

Join the thousands of Nurse Practitioners who’ve launched their careers with confidence.
Register now and take the first step toward becoming a certified NP.

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