
Psychotherapist
Jessica Waller-Wilshaw, MSc
Jessica Waller-Wilshaw is an experienced therapist with a Master of Science in Counselling & Psychotherapy and five years of dedicated work in the addiction recovery sector. Her career has taken her across the UK, Europe, and now Thailand, where she has supported individuals of all ages navigating addiction and a wide range of mental health challenges. Her background spans multiple rehabilitation environments, giving her a vast understanding of the diverse needs of clients in treatment.
Jessica has been a core part of The Diamond Rehab Thailand for over a year, where she leads the day-to-day operations of the clinical programme. She integrates a variety of evidence-based therapeutic approaches into her work, including CBT, DBT, Schema Therapy, and her recently completed training in EMDR.
Guided by a strong belief in individualised care, Jessica shares:
“I believe in personalised care—every person is unique and deserves to be treated in a way that suits them as an individual. I provide a safe space for clients to feel and express their emotions free of judgment and shame. Long-lasting recovery is what we pride ourselves on here at The Diamond, and I hope to help everyone who walks through our doors achieve this.”
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