Maria Knobel

Dr Maria Knobel is the Medical Director and founder of MedicalCert, a UK private medical certificate platform. She leads a team of GMC-registered doctors who review online consultations and issue signed medical certificates, including sick notes, fit-to-fly certificates, and mental health support letters, for patients across the United Kingdom.

Dr Knobel established MedicalCert to remove unnecessary barriers to medical documentation. The platform allows UK workers to obtain legitimate medical certificates without waiting weeks for a GP appointment. Every case is individually reviewed by a qualified doctor before any certificate is issued.

Under her clinical leadership, MedicalCert has issued thousands of medical certificates accepted by UK employers for workplace absence records and Statutory Sick Pay purposes. The service operates under Nobel Medical LLC with a full refund policy for any case where a certificate cannot be issued on clinical grounds.