CHAA Certification Application and Exam. Share | Take the first step toward earning the Certified Healthcare Access Associate (CHAA) credential. NAHAM established the CHAA certification to promote the highest standards of Patient Access services through the credentialing of those working as healthcare access associate.Click to see full answer. Regarding this, what is a Chaa certification?CHAA Certification Application and Exam. Share | Take the first step toward earning the Certified Healthcare Access Associate (CHAA) credential. NAHAM established the CHAA certification to promote the highest standards of Patient Access services through the credentialing of those working as healthcare access associate.Also Know, what does Naham stand for? National Association of Healthcare Access Management In this regard, how do you become a certified patient access representative? Be a Patient Service Representative Step 1: Attain a Certificate or Associate’s Degree. Patient service representatives should have a high school diploma, but depending on the type of position, additional training may be necessary. Step 2: Get Certified. Step 3: Advance by Specializing. What is National Association of Healthcare Access Management?NAHAM is a renowned Association in Healthcare. The exam is a good benchmark for you to know where you are and what your knowledge base is within your role as a leader in order to improve and hone your skills.