If you are visiting one of our hospitals because your GP has recommended you see a specialist, you will be given an outpatients appointment. This means you will visit an outpatient clinic for a few hours and then return home again, you will not stay in the hospital overnight.

Please double-check your letter to make sure that you arrive on the right date for your appointment. Your GP will normally have explained any special instructions about eating or drinking before your appointment but check your letter. 

When you arrive at the outpatients department, (the location will be stated on your appointment letter) you need to register your attendance at the outpatient’s reception desk before you take a seat. It is important that you do register otherwise the doctor will not know you are waiting and you will not be called for your appointment.

If you have to travel by car please allow extra time, as car parking can be very difficult at peak times.

Outpatient clinics are held for all different medical conditions. For more information on the department you are visiting, please go to the departmental page in the service A-Z.

For more information on visiting one of our hospitals please go to the patients and visitors section of the website.

Northwick Park and St Mark's Hospitals

Outpatient clinics for Northwick Park are located on levels 4 and 5 to the right of the main reception.
Please see your appointment letter for the outpatient clinic number and the level it is on.

Outpatient clinics for St Mark's are located on level 3. If you are arriving from the St Mark's entrance (car park 4) the outpatients' reception is along the corridor and through a set of double doors.

Map and directions


  • Patient first appointment line 
    020 8235 4200
  • Outpatients - Northwick Park 
    020 8869 3019/3022
  • Outpatients - St Marks Hospital 
    020 235 4051

Central Middlesex Hospital

Outpatient clinics are located throughout the hospital. Please refer to your appointment letter for a location.

Map and directions


  • Gastroenterology and Gastro-Intestinal Surgery centre 020 8453 2203
  • Cardiology and Respiratory Centre 020 8963 7134
  • Orthopaedics and Rheumatology 020 8453 2771
  • Neurology/Care of the Elderly/Dermatology 020 8453 2385
  • Haematology 020 8453 2292
  • Jeffrey Kelson Diabetics and Endocrinology 020 8453 2033
  • Urology 020 8963 8847/ 8986
  • Ear Nose and Throat 020 8453 2431
  • Ophthalmology (Eye Centre) 020 8963 7112 

Ealing Hospital

Outpatients is located next to the entrance to A&E

Map and directions

Patient service
Tel. 020 8967 5329

Cancelling or changing an appointment:

If you are unable to keep your appointment please let us know by calling:

  • Ealing Hospital -

  • Northwick Park and St Mark's Hosptials -

  • Central Middlesex Hospital 

so that we can arrange a different date. We can also give your appointment to someone else. This will help us to keep waiting times down.

Useful numbers:

Patient services department Ealing Hosptial
Tel. 020 8967 5329

Patient Advice and Liaison Service (PALS) Ealing Hospital
Tel. 0800 0641120

Patient Advice and Liaison Service (PALS) Northwick Park, St Mark's and Central Middlesex Hospitals Tel. 0800 783 4372