Our Staff




Dr Hammill graduated from Newcastle University in 2007, having previously completed a degree in Biomedical Sciences. She joined the practice in 2011 as a Registrar, and stayed with us as a Partner following completion of her GP Training. Dr Hammill works part time alongside Dr Jones. Her particular interests are child health and family planning. In her spare time Dr Hammill loves spending time with her family and 2 crazy dogs!



Dr Palmer graduated from Manchester University in 2005 after completing the St Andrew’s-Manchester medical degree. He worked in various posts in North Tees and Hartlepool before moving to New Zealand in 2007 and qualified as a GP. Following his return to the UK in 2009 Dr Palmer commenced the UK GP training programme, completing this in 2012. Dr Palmer is also a GP trainer. His particular interest is in sports medicine, doing some work with local football clubs. In his spare time he enjoys keeping fit and has a busy family life with his 2 young children.


Graduated from Newcastle University in 2012 before then going on to work in various GP and hospital posts in the North East. Joined Denmark Street surgery as a registrar in 2019 where I completed my GP training and then joined as a partner in 2021. In my spare time I enjoy being with my family including my children and dogs. I like being outdoors and being active and particularly enjoy family trips to the coast.


MB ChB (Aberdeen)

He represents the Practice on the Darlington Commissioning Cluster Group and in his spare time is taken up with his family, the occasional game of squash and watching Middlesbrough Football Club. Graduated from Aberdeen University in 2000 and has worked in various posts in Inverness , Middlesbrough and Stockton before completing his GP training. His interests include minor surgery and is a GP Trainer.



Dr Jewitt graduated from Newcastle University in 1993. He has worked as a GP in County Durham since 1997 before joining Denmark Street Practice in March 2002. He is also a GP Registrar trainer and a Training Programme Director for the Tees Valley Vocational Training Scheme. In his spare time, Dr Jewitt enjoys mountain biking, skiing and family life.



Dr Grayson graduated from Newcastle University in 2012. She worked in various posts in Stockton and Darlington before joining the practice as a registrar in 2016. Following completion of her GP training in she joined us as a partner. In her spare time Dr Grayson enjoys spending time with her family and friends, keeping fit, skiing, gardening and cooking.



Graduated from Dundee University in 1998, having also completed an degree in Forensic Medicine. After a year of working in Scotland, Dr Holterman worked in Australia for a further year and then 6 months in Chile as a volunteer medic with Raleigh International, before arriving to this area. Dr Holterman has an interest in Dermatology, and works at James Cook University Hospital one afternoon a week and is also a GP Trainer in the Practice.

GP Registrars

Dr Alvin Tan , Dr Nnamdi Obaji Dr Mohamed Ali, Dr Ayodeji Rosiji, Dr Rasheed Abdul-Raheem Dr Tun Iskander Tun Fizi Dr Sadia Islam

Nurse Practitioners

Nurse Practitioners Jane Pratt and Sorin Hotima are registered nurses who have acquired the formal education, extended knowledge base and clinical skills beyond the registered nurse level to practice in an advanced role. A Nurse Practitioner can examine a patient and establish a medical diagnosis by client history, physical examination, and prescribe treatment.

Practice Nurses

• Our current Practice Nursing team Karen, Denise, Lynett, Lynsey, Nadia, Nicola and Laura offer appointments for blood pressure checks and reviews, chronic disease management in diabetes, asthma, COPD, family planning advice, ear syringe, dressings and help our doctors in the provision of minor operations and contraceptive fittings.

Health Care Assistants

Debbie, Grace, Jeremy, Julie and Abi provide a daily phlebotomy service and also ECG's, stitch removal, and many other essential services to patients. We also provide a travel health advice service to patients travelling abroad.

Patient Liaison Assistant

• Our administration staff will arrange appointments either by phone or face to face, order repeat prescriptions and help with any queries.

Medical Secretaries

• The secretaries deal with all hospital communications, including hospital referrals, daily correspondence and any related queries.


Provided by Insight Counselling Services - the service offers an opportunity to share and explore problems, in confidence, with an understanding and trained Counsellor. The aim is to work towards helping you to find your own answers to your problems. Your GP can refer you to this service.

District Nurses

District Nurses are responsible for care in the home including care of the terminally ill and patients with chronic diseases, dressings, removal of sutures, ear syringing, catheter care and any other nursing duties. Visits can be arranged through your GP.

Health Visitors

All families with a child under five in Darlington have access to a Growing Healthy 0-5 Team consisting of health visitors, early years practitioners and infant feeding specialists. Health Visitors offer advice related to family health and promote health education. They carry out routine developmental checks and hearing tests for babies and young children and discuss with parents any aspect of growth, feeding, sleeping and behaviour in the young. They can be seen at one of the local Children's Centres and can be contacted via the Foundation Trust on 03000 263538. Please note the Health Visitors are no longer responsible for the immunisation of your baby/child. Please contact the surgery for further information on this.


A Midwife is available for routine checks at the surgery on Wednesday and Thursdays from 10.00pm - 5.00pm. Please telephone to arrange an appointment.