If you would like to book an appointment with Mr Ahmed at any of his clinics, please fill in the contact form below, or call us on 020 3633 8402. If you would like to book an appointment with Mr Ahmed at any of his clinics, please fill in the contact form below, or call us on 020 3633 8402. Make an Appointment Name Phone Email Message Send Us Your Message The Holly Hospital High Road, Buckhurst Hill,Essex, IG9 5HX. The Rivers Hospital High Wych Road,Sawbridgeworth,Hertfordshire, CM21 0HH. One Hatfield Hospital Hatfield Avenue,Hatfield Business Park,Hatfield, AL10 9UA. Cromwell Hospital 164-178 Cromwell Rd, Kensington, London SW5 0TU.