David Thomas

Partner, Medical Negligence Lawyer

News Advisory: High Court Ruled that Family can Claim against the MoD

I cannot fault Simpson Millar's team of David and Chantelle. My clinical negligence case has been handled excellently with an outcome even better than anyone expected.

David and Chantelle have kept me updated with all the important details, and always got back to me fast with anything I needed to know.

David took the time to get to know me and was always careful in his communications about the case to not put more strain on me and to reassure me. I thoroughly recommend Simpson Millar's services.L.J.F
David Thomas is a gifted and committed lawyer who achieves excellent results for his clients.

David is based in London and heads his own team of medical negligence specialists who represent private clients and membership organisations. David has a particular expertise in Birth Injury claims and Cerebral and Erb's Palsy claims. He can often act for clients under Legal Aid or No Win, No Fee funding.

Case Studies

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Professional Memberships & Accreditations

David is a Fellow of the Chartered Institute of Legal Executives, and a Senior Litigator of the Association of Personal Injury Lawyers (APIL). He is also a Legal Aid approved supervisor, member of the Law Society and AvMA Clinical Negligence Accreditation Panels, and an Accredited Mediator.

David is recommended in the 2021 editions of The Legal 500 & Chambers Directory. 

The Legal 500 2021 edition comments:

"David is a gifted and committed lawyer who achieves excellent results for his clients."

The Chambers Directory 2021 edition comments:

"David is very experienced and does a fantastic job for the client."


"He has always been extremely reassuring about the mechanisms and various processes that have to be gone through to get the best result."


Legal 500, Law Society Clinical Accredited, APIL and Action against Medical Accidents logo




David is active in the legal press and has had articles published in the Solicitors Journal and Chartered Legal Executive Journal.  He has also appeared in the news and live radio on subjects such as Sepsis and other life-threatening conditions.


David joined Simpson Millar in 1997, and has extensive experience in Clinical and Medical Negligence claims.

Interests outside of work

David enjoys mountain walking, football, cricket and rugby. He is also a dedicated fundraiser for the Teenage Cancer Trust (TCT) and one of his proudest achievements is climbing the Tibet side of Mount Everest and raising over £6,000 for the TCT.

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