At this time, the only online program by HeartMath that offers Continuing Education Units (CEU's) is the HeartMath Clinical Certification for Stress, Anxiety and Self-Regulation. These units are for the APA, not the AMA.
However, you can apply for CME credits through the AMA PRA Category 2 Credit™ – https://www.ama-assn.org/education/ama-pra-credit-system/what-know-about-other-kind-cme-credit