Effective instructional strategies have been highlighted in teaching Quantum physics (QP) since this topic is theoretically complex and different from classical physics. In addressing this issue, a needs analysis (NA) was carried out to identify the anticipated challenges in QP learning and facilitation (L&F) and the integration of STEM education in a physics classroom. This research is a qualitative study where a semi-structured interview was conducted with two experts in physics education and two physics teachers selected under a purposive sampling approach. The interview was one-on-one through online platforms, held during the Covid-19 pandemic’s mobility control order (MCO). The data from the semi-structured interview was analysed using thematic analysis, and the findings were presented as thematic maps. Two major themes emerged from the thematic analysis: 1) the expectation in QP L&F based on experts’ and teachers’ views and 2) the discrepancies in SSQP-STEM L&F gathered from the teachers’ opinions and perspectives. The first theme denotes 1.1) teachers’ professional development, 1.2) pedagogical content knowledge, 1.3) instructional strategy, and 1.4) QP L&F resources. The second theme describes the discrepancies of SSQP-STEM L&F in terms of 2.1) QP nature, 2.2) insufficiency of resources in QP L&F, and 2.3) teachers’ perceptions of students’ characteristics in the physics classroom, and 2.4) the teachers’ competencies issues in teaching QP. Overall, the finding shows that a practical instructional module needs to be developed to cater to the physics teachers' demands.