Senior Team And Directors

Dr William Cotter, Managing Director And General Practitioner

Dr Bill Cotter has worked in South East London for 28 years and has been Lead GP at Bellegrove Surgery for over 22 years. As well as working as a GP appraiser for more than 12 years, Dr Cotter served on the Board of Bexley CCG and its predecessor Bexley PCT as Practice based Commissioning Lead from 2007. He has led on various initiatives including setting up the Urgent Care Centre at Queen Mary’s Hospital, delegated prescribing and Bexley Kitemark quality schemes as well as a clinical lead on prescribing, cancer, diabetes, GP access, Urgent care and joint commissioning across Bexley, Bromley and Greenwich (BBG).


In 2013, Dr Cotter moved focus from commissioning to provision of services in Bexley by becoming board member of BHL (Bexley Health Limited) and has an ongoing role as Director of Clocktower Healthcare Ltd. He and fellow Directors of BHL set up BHNC CIC in 2015 as a not for profit organisation to act as a vehicle for Bexley GP Practices to join in provision of Supra Practice contracts and link to educational initiatives. Successes include; provision of a platform for Bexley Training Hub and VTS; winning a bid for 1st Wave Practice Clinical Pharmacist Pilot in 2015; and setting up Bexley 8 to 8 GP access services via agreement with the CCG in 2016 currently from 2 bases in Queen Mary’s Sidcup and Erith Hospitals.

Dr Prem Anand, Director And General Practitioner

Dr Anand has been a GP for over 25 years and is keen to secure a future for GPs and the NHS. Dr Anand is a senior partner at The Lakeside Medical Practice, a trainer, an appraiser, an LMC representative, chairman of North Bexley locality and is a board member of BHL.

Dr Richard Money, Director And General Practitioner

(Biography being updated)

Dr Surjeet Kailey, Director And General Practitioner

(Biography being updated)

Darren Blake, Chief Operating Officer

Darren’s NHS working career is now well over 30 years after joining up when he was 17 year old! For most of that time Darren directly worked collaboratively with patients, providers, commissioners and especially General Practice through roles in Hospitals, Primary Care Trusts/Clinical Commissioning Groups, Commissioning Support Units and Health Authorities (now Strategic Transformation Partnerships - STPs).

Darren joined the GP Federation in Bexley in December 2018 and has worked locally in Bexley and Greenwich on and off for over 20 years. Darren is a qualified accountant by background and has been Head of Finance in different organisations resulting in a very holistic view of healthcare. Darren believes it is essential we all work together to make the most of the money and resources we have to benefit patients, families and carers in terms of health and wellbeing. Darren’s most satisfying roles have been where he has been able to work with clinical colleagues and patients within teams, to develop new services and make existing ones better. Over the years Darren has been part of teams creating more joined up integrated services in Bexley where teams were set to bridge the hospitals and community divide; roving GPs with Ambulance services; Care Navigators, Community Services for Dermatology, Cardiology, Diabetes etc.

The GP Federation team’s role and purpose is to not compete with General Practice but blend, support and drive the provision of services, education and training and support to General Practice and the wider Community. Darren and his team are working hard to ensure the new Primary Care Networks develop and succeed in providing local services with high quality that are valued by all Bexley residents.


Sue Robinson, Head of Clinical Operations

(Biography being updated)


Andrea Davis, Head of Quality and Governance

Andrea has over 20 years NHS experience and joined BHNC as the Head of Quality and Governance at the end February 2019.  Andrea’s experience within Quality and Governance began within Bexley where she worked for a number of years managing clinical negligence claims, before moving onto NEL Commissioning Support Unit as Quality and Clinical Governance Manager, managing Serious Incidents and PALS and Complaints for a number of London based CCGs. 

Prior to joining BHNC, Andrea worked at Croydon CCG as the Head of Quality, whilst studying towards a MSc in Healthcare Leadership and Management at Westminster University.  Prior to her career in quality and governance, Andrea spent a number of years working as a Primary Care Management Accountant within Bexley CCG, where she gained a thorough understanding of GP contracts and disbursements.

Tumsilla Sethi, Head of Transformation

Tumsilla’s health career spans over 15 years delivering health projects as part of the community voluntary sector, the local PCT and Local Authority.  Moving into transformation and large scale change within the NHS, Tumsilla's roles were local and regional across the UK.  Tumsilla has board level experience with the NHS. 


Tumsilla’s roles have included service re-design, PFI capital builds, large scale programme management and transformation of health services (including independently supporting PCTs and CCGs as part of recommendations made by the NHS National Support Team via Government Office North West). In the last 10 years, Tumsilla has dedicated her career to working at scale within Primary Care across the UK, including working for UCLP (Academic Health Science Network).


Tumsilla’s role alongside the senior team and clinical leads will ensure Bexley Federation remains a forerunner to support the new reforms and help transform health services for Bexley’s four Primary Care Networks and to also support national Primary Care Networks individually and/or through their local federations.

Dr Cheryl Leung, General Practitioner

(Biography being updated)


Dr Lesley Bull, General Practitioner

Dr Bull is a GP first and foremost, but combines her clinical work at Westwood Surgery with palliative medicine at Greenwich & Bexley Community Hospice along with roles as clinical advisor and clinical lead for BHNC and Bexley CCG. Dr Bull took a somewhat convoluted route into medicine and into primary care, doing a graduate entry course at St George's in Tooting after a biology degree at the University of St Andrews and then taking time out of training to explore options in palliative care before qualifying as a GP in Bexley in 2017. Dr Bull considers herself very lucky at the moment to be able to combine all the things that interest her into an ever-evolving working week!

Marina Ayad, Primary Care Network Pharmacist

Marina is a Clinical Pharmacist with an Independent Prescribing qualification and she is currently working towards her Postgraduate Clinical Pharmacy Diploma.  As well as Primary Care, Marina has experience working within the hospital and community sectors.  Marina is very passionate about her work as a pharmacist and ensuring medication safety.  Marina is based at Lyndhurst Road Medical Centre and The Bursted Wood Surgery.

Emily Stephenson, Care Homes Pharmacist

Emily graduated from Cardiff University with an MPharm degree in 2010 and after completing her training year Emily qualified as a pharmacist in 2011. Emily practiced as a community pharmacist before moving to become a care homes pharmacist. She now works in 11 care homes across Bexley and Greenwich, her work includes conducting medication optimisation reviews for residents within the care homes and assisting the care homes to ensure medicines management is safe and effective.

Yvonne Roye, Business Manager

After studying Business and Communications in the 1980’s; Yvonne worked as a Marketing Assistant for Terence Conran’s Design Group in London whilst studying for her Marketing degree.  Yvonne later worked for The Evening Standard Newspaper as a communications officer and then travelled to Canada for a job working for MJJ Productions, as an international marketing manager.  After a successful career in the private sector Yvonne returned to the UK to raise her family and also worked for AgeUK.  In 2016 Yvonne joined BHNC to support the running of the Federation.

Debbie Carver, Practice Manager Bursted Wood Surgery

Debbie has worked in various roles in GP Practices in Bexley since 2000 until she moved away in 2014.  Debbie came back to work in Bexley in 2015 and since then has worked for Lakeside Medical Practice, Bexley CCG and Bexley Training Hub (formerly CEPN).  Debbie has now taken on the role of Practice Manager at Bursted Wood Surgery.

Training Hub

Liz Nicholls, Primary Care Tutor Bexley Training Hub, RN. NP(Dip) BSc(Hons) PGcertEd

Liz has been a qualified nurse for over 40 years after completing her training in the Queen Alexandra Royal Army Nursing Corp from 1975-1978. She came into general practice in 1991 employed as a health promotion nurse in Greenwich.  She soon expanded her role, being one of the first nationally to undertake Nurse Practitioner training, qualifying in 1995.  Liz has always had a keen interest in supporting nurses in training as well as the wider primary care workforce. In 2005 she completed her adult education course in order to further extend her role as a primary care tutor.

In 2007 she became self-employed as this better supported her desire to work as a lecturer practitioner delivering academic courses at University of Greenwich as well as maintaining her clinical competencies as a nurse practitioner. Liz has worked as the primary care tutor for Bexley Training Hub (previously Bexley Community Education Provider Network) for five years, supporting the existing workforce as well as developing the future workforce. Her passion continues to be supporting the workforce in their capacity to deliver quality services for the population of Bexley.

Catherine Simms, RGN BSc (Hons) NMP

Cathie works with Liz Nicholls at the Bexley Training Hub as the Mentor Lead.  Her role is to keep the Bexley Nurse Mentor Register as required by the NMC.  Cathie Supports the nurse mentors by ensuring that audits and agreements are in place and arranging mandatory updates. We encourage nurses to become Assessors and Supervisors.  We aim to increase placements for student nurses in General Practice, with an overall aim of increasing the future workforce.

Natasha Collett BA (Hons), PgDip

Natasha has worked within the NHS since graduating from University in 2010 with a BA Hons in Education and is currently undertaking an MSc in Diabetes having completed the post graduate diploma in 2018.

Natasha's first role within the NHS was as part of the Diabetes re-design team at Bexley Primary Care Trust, who were working to create and develop the new diabetes education programme for both patients and health care professionals.  Throughout her 9 years in Bexley Natasha has developed important relationships with all key stake holders in diabetes, from the consultants in secondary care to the GP’s in primary care, as well as with the commissioners and the patients.  Natasha begun as a project coordinator to the team to ensure that the requirements of the service were met.  Natasha has since progressed throughout the roles and reached the role Diabetes Education Lead for Bexley back in 2014.  This role has allowed Natasha to expand the diabetes education service to include a menu of diabetes education options for patients and for the service to be recognised nationally as an example of best practice.

Natasha, herself has type 1 diabetes and since attending the DAFNE programme at 19, has realised the importance of providing patients with the education they need to successfully manage their own condition. This passion for empowering patients is what has helped her excel within the diabetes education sector, forging great relationships with all key stakeholders both nationally and locally.

Carla Williams Dip3 Health and social care, PgDip Diabetes

Carla has worked within the NHS since 1996.  Carla started her career in dementia care where she delivered person centred care to individuals for 12 years. During this time Carla gained her NVQ2 in health and social care. In 2008, Carla joined general practice to work as a healthcare assistant; Carla soon found that she had a keen interest in wounds, respiratory and diabetes. This interest in diabetes was recognised by the Bexley diabetes lead in 2011 and Carla was asked to join the team, as an auditor for practices to ensure best practice was being met and became diabetes trainer.


Carla worked alongside the diabetes specialist nurse and learned how to deliver training sessions to GPs, nurses and healthcare assistants for delivering up to date and current care to their diabetes patients. Carla’s role soon extended when she qualified to be a diabetes educator for patients with type 2 diabetes. During this time Carla has remained at her surgery sharing her working time between there and the diabetes team at BHNC.


Carla has gained her Dip3 in health and social care, where she focussed on wound care for her main module. Carla covers a range of duties at her surgery, she is the lead for wound care and diabetes, she works in clinic for all chronic diseases and assists with her lead GP for minor surgery.  More recently Carla has passed her post graduate diploma in diabetes with a distinction and will be moving onto her masters next year.

Caroline Healy, Administration Support

Caroline has worked in an administrative role for the Federation since its' inception in 2015 supporting the Directors, Bexley's VTS Training programme directors, Bexley Training Hub (formally CEPN) and managing the day to day functions of the office including HR and payroll.  Caroline currently works part time as administration support for Bexley Training Hub.