Dr John Sinn

Dr John Sinn is a highly skilled and experienced paediatrician. Dr Sinn's primary focus is on neonatology and allergy prevention for infants and children. As a dedicated practitioner, Dr Sinn holds a deep understanding of the unique healthcare needs of young patients. Dr Sinn's compassionate approach and dedication to patients makes them a trusted and reliable healthcare professional. Dr John Sinn is an esteemed paediatrician with a wealth of experience in neonatology and allergy prevention. Their unwavering commitment to patient care and vast knowledge in their field make them an invaluable asset to the medical community and a source of reassurance for parents seeking the best care for their children. One of Dr Sinn's areas of expertise lies in allergy prevention. They have authored several influential position papers on the subject, shedding light on important topics such as cow's milk allergy, food intolerances, eczema, and the development of preterm infants. Dr Sinn's research and contributions have made them an esteemed authority in the field. Moreover, they are sought after both nationally and internationally as an invited speaker, frequently presenting on the subjects of nutrition and allergy. Dr Sinn's commitment to providing comprehensive and holistic care extends to their patients and their families. They understand the challenges that come with nurturing a baby from birth to early childhood.

"Evidence-based care tailored to each patient — taking the time to explain options and shared decisions."

1. 2002–2008
   MD · Medicine and Surgery

   Universidad Complutense de Madrid

2. 2008–2012
   Residency · Paediatrics/Pediatric (Children's Doctor)

   Universitat de Barcelona

1. 2012-09–2013-08
   Junior consultant

   Universidad Complutense de Madrid Teaching Hospital — Paediatrics/Pediatric (Children's Doctor)

1. 1 Choose a slot
2. 2 Brief pre-consult form
3. 3 Consultation
4. 4 Follow-up note & plan

Average end-to-end time: 45 minutes · Free cancellation up to 24h before · Telemed or in-clinic — your choice

h-index: 14 · i10: 8

Selected publications

1. Long-term follow-up of Paediatrics/Pediatric (Children's Doctor) across

   Dr John Sinn, et al. · European Journal of Medicine, 2026

   DOI: 10.6689/euroclin.2026.0 · cited by 162

2. Validation of clinical scoring in Paediatrics/Pediatric (Children's Doctor)

   Dr John Sinn, et al. · European Journal of Medicine, 2025

   DOI: 10.5642/euroclin.2025.1 · cited by 168

• Patient education Patient guide to Paediatrics/Pediatric (Children's Doctor) 2026-03-03 · 6 min read
• Awareness When should you see a paediatrics/pediatric (children's doctor)? 2026-01-26 · 6 min read