Professional background

I qualified from UCH in 1991. After medical posts I pursued a career in psychiatry.

I have worked at UCLH for two days a week as a consultant in liaison child and adolescent psychiatry since 2000. I am particularly interested in the interface between physical illness and its psychological sequelae.

I am also clinical lead and consultant psychiatrist at Simmons House adolescent psychiatric unit in North London.

Research interests

I am interested in the role of fathers in the care of infants and children. More recently I have published outcomes studies exploring the benefits of adolescent psychiatric inpatient treatment.


Predictors of change in global psychiatric functioning at an inpatient adolescent psychiatric unit: A decade of experience
Jane Kennedy, Philippa Hembry, Dan Green, David Skuse and Simon Lewis
Clinical Child Psychology & Psychiatry (2020) 25, 2, 471-482

Outcomes of inpatient psychiatric treatment for adolescents: A multiple perspectives evaluation
YingMin Lee, Peter Martin, Pippa Hembry and Simon Lewis
Clinical Child Psychology & Psychiatry (2018) 23, 3, 409-424

Vitamin D deficiency in adolescents in a tier 4 psychiatric unit
N Stewart & S Lewis
BJPsych Bulletin (2017) 41, 3, 133-136

The influence of mothers' and fathers' sensitivity in the first year of life on children's cognitive outcomes at 18 and 36 months
L-E Malmberg , S Lewis, A West, E Murray, K Sylva , A Stein
Child: care, health and development (2016) 42, 1, 1-7.

A comparison of father–infant interaction between primary and non-primary care giving fathers
S. N. Lewis, A. F. West, A. Stein, L.-E. Malmberg, K. Bethell, J. Barnes, K. Sylva, P. Leach
Child: care, health and development (2009) 35, 2, 199–207

Why do some fathers become primary caregivers for their infants? A qualitative study
A. F. West, S.N. Lewis, B. Ram,J. Barnes,P. Leach, K. Sylva, A. Stein
Child: care, health and development (2009) 35, 2, 208–216

Parent-infant interaction: a growth model approach.
Malmberg LE, Stein A, West A, Lewis S, Barnes J, Leach P, Sylva K; FCCC
Infant Behav Dev. (2007) 30: 615-30