Skip to content

About us

We are a private, multidisciplinary team of dedicated mental health professionals committed to providing high-quality psychological assessment, therapeutic intervention, and support for children, young people, and adults. Our mission is to create a safe, supportive, and confidential space where you can feel understood and empowered to thrive.

Our management team

Our Management team is responsible for the day-to-day running of Abercorn Clinic. Each and every member of the team has a wealth of experience in the delivery of exceptional psychological care.

Patricia Sheridan

Founder & Managing Director
Patricia Sheridan is the Managing Director at Abercorn Clinic. With four decades of experience founding and managing organisations, she is a dedicated advocate for delivering excellence in care and treatment, guided by her personal mantra: “Determined to Deliver Excellence”.

Dr Stephen Drysdale

Clinical Director
Dr Stephen Drysdale is the Clinical Director and Chief Executive Officer at Abercorn Clinic. With over two decades of experience in therapeutic care and education, Stephen is a passionate advocate for fostering secure attachments and resilience.

Stephanie McQuillan

Head of Clinical Operations
Stephanie brings a wealth of experience to Abercorn Clinic, having been a part of the Moore House Group since 2013. Her diverse background, spanning both education and social care, has provided her with a strong and comprehensive foundation for her work.

Alison Daly

Practice Manager
Alison is the Practice Manager at Abercorn Clinic, bringing over 10 years of experience in delivering administrative support and exceptional customer service within the private healthcare sector.
+

Patricia Sheridan

Founder & Managing Director

Patricia Sheridan is the Managing Director at Abercorn Clinic. With four decades of experience founding and managing organisations, she is a dedicated advocate for delivering excellence in care and treatment, guided by her personal mantra: “Determined to Deliver Excellence”.

A registered nurse (RGN, RMN) and qualified social worker, Patricia has a deep, hands-on understanding of the sector. Her academic background is further strengthened by an MA in Education and an MSc in Forensic Psychology. Her work is further strengthened by her specialisation in neurodiversity and trauma.

Patricia’s leadership style is rooted in fostering trusting relationships and creating positive outcomes. She believes that every team member plays a crucial part in the wellbeing and progress of clients, and she is committed to ensuring that her passion for high-quality services is shared throughout the organisation.
+

Dr Stephen Drysdale

Clinical Director

Dr Stephen Drysdale is the Clinical Director and Chief Executive Officer at Abercorn Clinic. With over two decades of experience in therapeutic care and education, Stephen is a passionate advocate for fostering secure attachments and resilience.

Holding a Doctorate in Forensic Psychology from the University of Nottingham, Stephen’s academic and clinical work is deeply informed by his doctoral thesis on the impact of childhood trauma. He earned his undergraduate degree in Psychology from the University of St Andrews and his MSc in Forensic Psychology from Glasgow Caledonian University. Stephen is also trained in Eye Movement Desensitization and Reprocessing (EMDR) and Dyadic Developmental Psychotherapy (DDP). His vision is rooted in the belief that shared positive experiences and a stable, nurturing environment are fundamental to successful therapeutic outcomes.

Beyond his leadership at Abercorn Clinic, Stephen is dedicated to advancing the sector as a whole. He serves as a Trustee for Scottish Attachment in Action and on the Management Committee for Educating through Care Scotland, roles that allow him to champion the needs of children and young people with additional support needs. Stephen is also an honorary lecturer at Glasgow Caledonian University, where he shares his expertise with the next generation of psychology and social care professionals.
+

Stephanie McQuillan

Head of Clinical Operations

Stephanie brings a wealth of experience to Abercorn Clinic, having been a part of the Moore House Group since 2013. Her diverse background, spanning both education and social care, has provided her with a strong and comprehensive foundation for her work. This extensive experience has allowed her to effectively engage with and support individuals from a wide range of backgrounds and professional disciplines, preparing her exceptionally well for her integral role at the clinic.

Academically, Stephanie possesses a robust Psychology background, which is complemented by a professional certificate in Leadership and Management. Further enhancing her foundational knowledge, she holds a qualification in social care. Demonstrating a commitment to specialized expertise, Stephanie further pursued and attained postgraduate qualifications in both Counselling and Psychotherapy, deepening her therapeutic understanding and capabilities.

Her exceptional management and leadership skills have been undeniably instrumental in the development of both the team and the service provided by Abercorn Clinic, profoundly shaping it into the institution  it is today. Stephanie excels at cultivating a collaborative and genuinely inclusive environment, where every team member feels valued and empowered. She expertly guides a multidisciplinary team, adeptly leveraging their diverse skills, perspectives, and areas of expertise to achieve the best possible client outcomes. Crucially, her therapeutic qualifications profoundly inform her leadership style, enabling her to not only manage but also to genuinely support and nurture the unique potential and professional growth of each individual team member, fostering a truly holistic and effective approach to leadership.
+

Alison Daly

Practice Manager

Alison is the Practice Manager at Abercorn Clinic, bringing over 10 years of experience in delivering administrative support and exceptional customer service within the private healthcare sector. Her dedication to high-quality client care drives her approach, ensuring that every patient experience is seamless and supportive. Alison is committed to maintaining the highest standards of service and care at Abercorn Clinic

Our clinicians and support team

We have a selection of Clinicians all of whom specialise in different fields.

Adam McDiarmid (He/Him)

Clinical Support Manager
With a background in social care and inequality reduction, Adam joined the team in 2016 and became the Senior in 2019 before taking over the role of Manager in 2024.

Robert Davidson

Assistant Psychologist
Robert graduated with an Honours degree in Applied Psychology and achieved a professional background in commercial psychology and business development.

Jo Tamburrini (She/Her)

Assistant Psychologist
Jo graduated with a BSc (Hons) degree in Applied Psychology in 2020 and progressed to completing a MSc degree in Clinical Health Psychology in 2021.

Natalie Ellis

Assistant Psychologist
Natalie holds an honors degree in Psychology and a Master’s in Applied Forensic Psychology.

Sophie Campbell

Assistant Psychologist
Sophie graduated with a BSc (Hons) in Applied Psychology (Forensic Division), achieving First Class Honours in 2024, and completed an MSc in Forensic Psychology in 2025.

Aleksandra Tomalka

Assistant Psychologist
Aleksandra has a strong background in Psychology and social care. Graduating with a BSc (hons) in Applied psychology and having experience working with and supporting individuals with a diverse range of mental health and social care needs.

Zara Al-Nayazi

Assistant Psychologist
Zara has experience working across a range of clinical and community settings, supporting individuals with diverse mental health needs, neurodevelopmental conditions, and emotional difficulties.

Tracey Horsburgh

Administrative Assistant
As Admin Assistant, Tracey plays a multifaceted role in supporting the Assistant Psychologists daily. Her responsibilities include providing vital administrative support for various team activities and initiatives
+

Adam McDiarmid (He/Him)

Clinical Support Manager

With a background in social care and inequality reduction, Adam joined the team in 2016 and became a Senior in 2019 before taking over the role of Manager in 2024. Adam is trained to Level 2 in Dyadic Developmental Psychotherapy, Level 1 in Theraplay and has completed the COCSA Certificate in Counselling Skills Levels 1-4. Adam has attended several training courses on topics from Child Exploitation to Sleep, and is an accredited Seasons for Growth Companion and CEOP Education Ambassador. Adam holds an Honours degree in Psychology and Sociology and an MSc in Child Development. He has also completed his SCQF Levels 7 and 9 in Social Care. Adam strives to help young people feel seen and heard, creating a therapeutic environment while making fond memories. Adam has continuously aimed to improve his understanding of adversities imposed on babies, children and young people, and their families, so he can better contribute to positive change through inclusive practice.
+

Robert Davidson

Assistant Psychologist

Robert studied Applied Psychology where he initially began to apply his knowledge within sales and marketing and later business development. During this time he volunteered with a local youth club where he found a passion to support and understand young people in their development with a keen focus on their mental health and resilience. Robert gained valuable experience working and supporting young people, administering assessments and guiding their growth and development by working and training with those supporting them. Working closely within an education and residential setting tailored to individuals with neurodivergence, Robert has trained in Dyadic Developmental Psychotherapy/Practice Level 2, Seasons for Growth for Adults and administering a number of assessments including ADOS-2 and ADI-R for young people and adults.
+

Jo Tamburrini (She/Her)

Assistant Psychologist

Jo graduated with a BSc (Hons) in Applied Psychology in 2020 and went on to complete an MSc in Clinical Health Psychology in 2021. She has a strong background in social care and psychology services, supporting individuals with a wide range of needs.

She is experienced in conducting assessments to understand social, emotional, and developmental needs, and in delivering tailored interventions that promote growth and wellbeing. Jo also provides training and guidance for parents, carers, and professionals, equipping them with strategies and support to deliver effective care.

Her academic training, combined with hands-on professional experience, has given Jo a well-rounded understanding of how developmental, psychological, and social factors interact to shape wellbeing. She is particularly passionate about supporting neurodiverse individuals and is committed to neuroaffirming approaches that celebrate individuality, recognise strengths, and create environments where people feel understood, supported, and empowered.
+

Natalie Ellis

Assistant Psychologist

Natalie is an Assistant Psychologist driven by a deep passion for helping people thrive. With a strong background in Psychology and Applied Forensic Psychology and social care, she is dedicated to creating positive, supportive environments where individuals can build the confidence and skills they need to succeed. Since joining Moore House Group, Natalie has become trained in Dyadic Developmental Psychotherapy/Practice (DDP) to level 2, an approach that allows her to build strong, trusting connections with the individuals she works with. She is dedicated to promoting positive change and ensuring that every individual feels heard, understood, and optimistic about their future.
+

Sophie Campbell

Assistant Psychologist

Sophie graduated with a BSc (Hons) in Applied Psychology (Forensic Division), achieving First Class Honours in 2024, and completed an MSc in Forensic Psychology in 2025. She has experience working within psychological services across social care and residential settings, where she supports individuals with diverse needs. Grounding her practice in Dyadic Developmental Psychotherapy (DDP), Sophie is skilled in conducting assessments and delivering evidence-based, strengths-focused interventions that foster resilience, promote wellbeing, and support positive change. Through both her academic training and professional experience, she has developed a strong understanding of how developmental, psychological, and social factors interact, and is passionate about improving the lives of others.
+

Aleksandra Tomalka

Assistant Psychologist

Aleksandra has a strong background in Psychology and social care. Graduating with a BSc (hons) in Applied psychology and having experience working with and supporting individuals with a diverse range of mental health and social care needs. Aleksandra is dedicated to creating a safe and caring environment to which individuals can get the support they need to thrive. Making sure that all interventions and assessments are completed in a person- centred way. Aleksandra is experienced in working with children, young people and families as she equips them with the skills and knowledge they require to grow and develop, utilising a strengths-based approach in order to promote positive change.  Aleksandra is also bilingual in both Polish and English and can provide support in both languages.
+

Zara Al-Nayazi

Assistant Psychologist

Zara holds a BSc (Hons) in Psychology (2019) and a MSc Mental Health in Children & Young People: Psychological Approaches (2021).

She has experience working across a range of clinical and community settings, supporting individuals with diverse mental health needs, neurodevelopmental conditions, and emotional difficulties. Her work has included neurodiversity assessments, supporting individuals with autism and learning difficulties, and providing emotional and practical support to people in distress.

Zara is passionate about delivering compassionate, evidence-based care and supporting people with their mental health. She has a particular interest in autism and ADHD assessments.
+

Tracey Horsburgh

Administrative Assistant

As Admin Assistant, Tracey plays a multifaceted role in supporting the Assistant Psychologists daily. Her responsibilities include providing vital administrative support for various team activities and initiatives. Specifically, she ensures the seamless execution of Moore House Group care planning meetings by managing all necessary documentation and logistical arrangements. Tracey also offers comprehensive administrative assistance for assessment processes, streamlining the workflow for the psychology team, and supports training and interventions offered by the team.

Tracey has thoroughly enjoyed immersing herself in the team dynamic and has diligently worked to gain a deep understanding of their operations. This dedication has allowed her to significantly develop and refine her role, making her an increasingly valuable asset to the clinic. She particularly appreciates the collaborative environment of the Psychology team and the satisfaction of knowing her administrative support directly contributes to client well-being. Tracey also values the continuous learning opportunities her position offers, as she constantly expands her knowledge of psychology and administrative best practices.