Single session therapy (SST) and interventions have been used around the world for many years in the form of walk-in clinics to help offer mental health services when there are long wait times for a standard course of therapy. If you work in integrated care, you know the value of starting the work immediately at the exact moment the patient is asking for help and making a discernable impact that day. A "one at a time" mindset offers a specific combination of skills and interventions to keep the parameters of the discussion narrow and to allow a clinician to move quickly. A single session can make quite a difference in the patient's disposition, particularly when they leave with an action plan and a way to rely on existing support and assistance. This delivery format can fit into just about any model of integrated care in either face to face or virtual settings (and you can bill for it!).

Cannistra, F. & Hoyt, M.F. (2025). Single Sessions Therapies: Why and how one at a time mindsets are effective. Routledge.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10012621/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9805912/
https://www.apa.org/monitor/2022/04/feature-growth-patients
Dryden, W. (2024). How to think and intervene like a single session therapist. Routledge.