TPAN stands for Training Programme Approval Number. Approval of specialty training programs and posts rests with the General Medical Council (GMC). The GMC allocates a Training Programme Approval Number to a training programme. TPANs are a required field on a trainee's ARCP Outcome Form.
If you do not know your TPAN, contact your deanery.
Trainees can edit portfolio details including their TPAN on the portfolio page of their FOM PortfolioBuilder account.