Background: Many Veterans lack local access to specialized cancer services. When timely VA care is not accessible, the VA covers the cost of care provided in a Veteran’s community. This benefit disrupts integrated care delivery within VA and may be less applicable for Veterans in areas where specialized cancer services may also not be available locally. The National TeleOncology (NTO) service was established to provide remotely delivered cancer services and increase access for Veterans to specialized cancer care. We sought to understand early implementation experiences as part of an ongoing evaluation of the VA National TeleOncology (NTO) service. Methods: Informed by the Consolidated Framework for Implementation Research (CFIR), we conducted a qualitative descriptive study using virtual individual interviews with Veterans (results not reported) and focus groups with clinicians. To identify and describe implementation barriers and facilitators, oncologists, nurse practitioners (NPs), and registered nurses (RNs) who provide care via teleoncology were asked about the need for NTO, its advantages/disadvantages compared to alternatives, and how to operationalize and measure NTO’s success. Additionally, Veterans who have participated in the teleoncology program were asked about their experiences; the analysis of this data is ongoing. We employed a team-based, rapid qualitative analysis using structured forms for notetaking. Theme matrix techniques facilitated data analysis and presentation. Findings were mapped to CFIR domains and constructs. Results: Guided by information power, we conducted 15 individual interviews with Veterans and three focus groups, separated by clinician type. The individual interviews lasted approximately 36 minutes, and focus groups lasted approximately 30 minutes. Most Veteran participants were male (87%), white (60%), and had prostate cancer (47%). Results from our analysis suggest that clinicians feel there are key challenges/barriers to engaging NTO: 1) can delay care; 2) perception that NTO may not be as personable as in-person care; 3) technology access/use can be difficult for some Veterans. They also reported key advantages/facilitators: 1) provides Veterans nationwide with accessibility to cancer specialists; 2) keeps patients in VA system to support better care coordination and team-based care that expedites needed follow-up services. Conclusions: Those involved in implementing NTO feel supported and that it works well overall, especially to provide better coordinated cancer care for Veterans. These data will support an ongoing NTO evaluation. Separate data collection efforts are underway to understand the quality of care delivered to inform the widespread scale-out and delivery of NTO.