View the list of services and departments


About the Service / Department

The Pathology Service is able to provide a range of services and information to Wards, Departments and GP Practices. If you wish to discuss any service developments or require information relating to or derived from the Pathology Service, please see the table of contacts below.

The Pathology Laboratory provides a comprehensive diagnostic testing and Consultant Advisory service for the scientific disciplines of Histopathology, Chemical Pathology, Haematology and Blood Transfusion, Immunology, Microbiology and Cytology. Phlebotomy for GP and Hospital patients, Clinical Haematology, Clinical Immunology and anticoagulation services are also provided.

The department also acts as a point of contact for Specialist Laboratory services, e.g. genetics.

St Albans provides phlebotomy for GP and Hospital patients, anticoagulant clinics and a limited Laboratory service in support of on-site clinical services.

The Clinical Director, Dr Justin Harrison, is supported by the Pathology Services Manager (Pamela McColgan), and the Consultant Heads of Disciplines.

View the blood clinic opening times

Blood Clinic Opening Times
Site Day Times
Hemel Hempstead Hospital
01442 287803
Temporary changes due to COVID-19
Monday 08.30am to 16.30 pm
Tuesday, Wednesday, Thursday and Friday 12.00 pm to 16.30 pm.
Monday 08.30 - 16.30
Tuesday, Wednesday, Thursday and Friday 12.00 - 16.30
St Albans City Hospital
01727 897375/6
Mon, Thurs Fri 08.30 - 16.00
Tues, Wed* 12.00 - 16.00
Watford General Hospital
01923 244366
Monday and Wednesday 09.00 - 16.00
Tuesday, Thursday and Friday* 12.00 - 16.00
* Warfarin clinics are held on these days between 09.00 and 12.00 for Warfarin patients only. Please do not attend during this time.

Blood can be taken from children 5yrs + on all three sites, Watford is walk-in but Hemel Hempstead and St Albans are by appointment only

Service / Department Contacts

If you wish to discuss any service developments or require information relating to or derived from the Pathology Service then please contact the relevant department.

General Enquiries Internal External / Direct Dial
Hemel Hempstead / St Albans City / Watford 2671 Tel: 01442 287671
Hemel Hempstead / St Albans / Watford 2829 Tel: 01442 287829
Name Internal Site External / Direct Dial
Clinical Director     
Dr Justin Harrison Ext. 2805 / Ext 7630 Cross Site 01442 287805 / 01923 217630
Secretary 7592 Cross Site 01923 217592
Pathology Services Manager   
Pamela McColgan 7124 Watford 01923 217124
Secretary 7952  Cross Site 01923 217592

Contacting the Trust

Please contact the relevant Trust switchboard if you require further information or assistance:

Watford General Hospital switchboard: 01923 244366
Hemel Hempstead Hospital switchboard: 01442 213141
St Albans City Hospital switchboard: 01727 866122

Our hospital sites