João Miguel Rebola Costa
Introduction
João Miguel Rebola Costa is a dentist who was registered with the General Dental Council under number 217702. On 4 September 2026, at the conclusion of a substantive hearing that had opened on 1 September 2026, the GDC’s Professional Conduct Committee directed that his name be erased from the register — the sanction commonly described as being struck off. The decision followed his admission that he had provided two falsified employment references, conduct the Committee found to be serious misconduct and to have left his fitness to practise currently impaired on public-interest grounds. An immediate suspension was imposed while the erasure decision awaits the end of the appeal period or the disposal of any appeal.
Background Information
The published determination records little of Costa’s personal or professional history beyond his status as a dentist registered with the GDC under number 217702. The case placed before the Professional Conduct Committee had three strands: falsified employment references; allegations about employment-history disclosure; and allegations about the disclosure of NHS conditions. Costa admitted the core of the case at the outset — that he provided two false references and that in doing so his conduct was misleading, dishonest and lacking in integrity. The remaining allegations were disputed and fell to be determined on the evidence. The public record of the hearing does not set out his career history, qualifications or the positions to which the references related.
The Controversy or Incident That Led to Their Cancellation
Allegations vs. findings. The findings are regulatory findings by the GDC Professional Conduct Committee on the civil standard (the balance of probabilities). No criminal conviction is recorded in the determination.
The Committee found the false-reference allegations proved on admission and found that they amounted to serious misconduct. Costa admitted providing two employment references that were false, and admitted that providing them was misleading, dishonest and lacking in integrity; the findings rested on those admissions rather than on contested evidence.
The other strands of the case did not result in findings against him. The Committee found no case to answer on the charge concerning his employment history, and the allegations concerning notification of NHS conditions, together with a related allegation of breach, were not proved. Those dismissed and unproved items form part of the official outcome alongside the proved findings, and are recorded here because the record distinguishes between what was established and what was not.
In arriving at its decision, the Committee weighed mitigating factors against aggravating ones. In mitigation it noted Costa’s previous good character, his remorse and apology, some insight and remedial action, and personal circumstances at the relevant time, the private details of which were redacted from the public determination. In aggravation it identified premeditated and repeated dishonesty, conduct carried out with a view to personal financial gain, and an abuse of trust and professional position.
Public Reaction and Consequences
The regulatory consequences were contained in the Committee’s decision of 4 September 2026. The Committee directed erasure from the register and imposed an immediate suspension, so that the removal takes effect while the erasure decision awaits the end of the appeal period or the disposal of any appeal. It found that a lesser sanction would not maintain public confidence in the profession.
The Committee found Costa’s current fitness to practise impaired on public-interest grounds, and found that there was no evidence supporting impairment on public-protection grounds. The erasure therefore rests on the need to uphold professional standards and public confidence rather than on a finding of present clinical risk to patients. The determination records the regulator’s findings rather than press coverage or public commentary, and no public statements by Costa are recorded in it.
Current Status
As determined on 4 September 2026, João Miguel Rebola Costa is erased from the GDC register — struck off — with an immediate suspension in force while the erasure decision awaits the end of the appeal period or the disposal of an appeal. Erasure removes a practitioner from the register so that they are no longer permitted to practise the profession in the UK; the decision sets out when the direction takes effect and the appeal provisions that apply to it. Costa’s current registration status, as affected by any appeal since the determination, can be checked on the official GDC register.
Impact on Their Career/Life
The erasure ends Costa’s ability to practise dentistry in the United Kingdom. The Committee’s route to that outcome turned on the character of the dishonesty rather than on clinical failings: the dishonesty was found to be premeditated and repeated, carried out for personal financial gain, and an abuse of trust and professional position. Although the Committee accepted previous good character, remorse and apology, and some insight and remedial action, it concluded that a lesser sanction would not maintain public confidence — an assessment that placed the public-interest dimension of the case above the mitigation advanced on his behalf. The finding that there was no evidence supporting impairment on public-protection grounds means the record does not establish present clinical risk to patients; the basis of the impairment was the need to uphold standards and confidence in the profession. The allegations on which the case failed — the employment-history charge, on which there was no case to answer, and the NHS-conditions allegations, which were not proved — form no part of the basis for erasure.
Sources
- MedicWatch, “GDC directs João Miguel Rebola Costa’s erasure over false references”, 4 September 2026.source