Dr Allan Harkness

Consultant Cardiologist for Essex and Suffolk


I see private patients at The Oaks Hospital, Colchester and Nash Basildon at the Essex Cardiothoracic Centre, Basildon.

My Oaks clinic runs on Monday and Thursday afternoon and evening but other times can usually be arranged if necessary.

For private appointments, please contact Claire Osborne, my secretary at The Oaks:

Claire Osborne
Tel 07384 460 730
Fax 01206 852701

Claire usually works Monday to Wednesday 8am-4pm.

You can also book or amend an appointment with me by choosing the outpatient booking department option when you ring the Oaks main switchboard on 01206 752121

They are open 8am to 8pm, Monday to Friday.

The outpatient department can also arrange urgent appointments at short notice.

The Oaks Hospital (Ramsay Healthcare)

120 Mile End Rd, Colchester, Essex, CO4 5XR
Tel: 01206 752121   Fax: 01206 852701

The Nash Basildon Private Patient Unit

Essex Cardiothoracic Centre, Nethermayne, Basildon, SS16 5NL
Tel: 01268 394217 Ward: 01268 394218


It is standard practice to see patients with a referral letter from their GP. If the problem is urgent, a letter is not always necessary. However, please be aware that most insurers will insist on this — please consult with your insurer beforehand and obtain any pre-authorisation necessary for a clinic visit. You will usually have an ECG during your initial consultation. Self-pay patients are also welcome — please contact Claire to discuss.

If you are an inpatient at Colchester Hospital and wish to discuss “going private”, please ask the doctor looking after you to contact me directly.

If you have recently been an inpatient at Colchester General Hospital, have had tests there, or had blood tests by your GP, please let my secretary know — I can often retrieve this information from the General prior to your consultation.


For NHS appointments, these must be arranged through your GP — although your GP may request an appointment with me, this cannot be guaranteed within the NHS system.

If you need to rearrange an appointment, please call the number on your appointment card.

For other NHS queries, please contact my NHS Secretary on 01206 742626