This website and its content is copyright of Outcomes Based Healthcare 2018. All rights reserved.

OBH Clinical Associates Network

The OBH Clinical Associates Network is dedicated to growing the value-based community in the UK and globally. We bring a variety of perspectives to the challenge, and deep specialist knowledge that underpins our robust methodologies and we want to build a network of people who care about outcomes as much as we do.

Why join us? You will be granted direct access to our team and the network via our Slack channel and a range of other benefits such as:
  • Resources to learn about outcomes based commissioning
  • Quarterly invite-only sharing events with the OBH team to learn about value, outcome measurement and outcomes based approaches
  • Opportunities to provide paid advisory support directly to OBH, and internships when available
  • Invites to join us at OBH parties and socials!
We are currently looking for Clinical Associates to join our network.

Clinical Associates


 Dr Toby Colegate-Stone

Toby is a Trauma and Orthopaedic surgeon. Following his basic surgical training, he spent a year researching shoulder surgery and the analysis of outcomes, before gaining his FRCS. Toby is an enthusiastic believer in evidence based healthcare and is widely published in internationally peer reviewed journals and speciality meetings.

Dr Imogen Staveley

Imogen is the Clinical Lead for Warwickshire North CCG and the Healthy London Partnership at NHSE and is a GP by background. She holds an MBA with distinction from Warwick Business School. Having completed her MRCP and MRCGP, Imogen also holds diplomas in family planning, obstetrics and gynaecology, and dermatology. 


Dr Sophie Vergnaud

Sophie is a Specialist Registrar in Respiratory and General Internal Medicine in London. She is currently working in health technology. She is passionate about: the integration of community and hospital care, self-management of chronic conditions, good end-of-life care, physician health and burn-out, education and mentoring.

Dr Rachna Chowla

Rachna is a GP and holds an MBA from INSEAD. She has Big Pharma experience and a unique background that allows her to bridge the gap between entrepreneurial innovation and commercial translation, into solutions that make a real difference. Rachna was one of the early team members at OBH from 2013-2015.

Dr Sophia Cashman

Sophia is a urology surgical registrar, currently at Addenbrookes. Having completed her medical degree with honours from University of Manchester and core surgical training with the London Deanery, her interest lies in female, functional, and neuro urology. She is also the Female, Neurological and Urodynamic Urology (FNUU) representative for SURG UK urology trainee association.

Dr Partha Das

Partha is a renal physician completing his nephrology training in 2015. He holds a first class degree in Neuroscience and a MSc in Health Policy, Planning and Financing from LSHTM and LSE. He is a Harkness Fellow in Health Care Policy and Practice at the Harvard TH Chan School of Public Health.

Dr Stephanie Kuku

Stephanie is a Senior Surgical Fellow. During training in Obstetrics & Gynaecology, she completed MRCOG and obtained a Doctorate (MD) in Clinical Research from UCL. She served as council member and trainee representative for the British Gynaecological Cancer Society. Stephanie is passionate about improving outcomes in women’s health.


Dr Aseem Ghaghda

Aseem works as an FY2 doctor on the Academic Foundation Programme in Oxford – undertaking research in radiology. Aseem has worked on healthcare strategy in the past during his internship at McKinsey & Company. He attended the 2017 Harvard Business School Value-Based Healthcare Delivery Seminar.


Dr Cosima Gretton

Cosima is a medical doctor, health tech consultant and founder of AXNS Collective, a science communication company funded by the Wellcome Trust and the Arts Council. She is an alumnus of the Singularity University Graduate Studies Programme and currently an Academic Foundation trainee at St Thomas’s Hospital. 


Dr Harry Barber

Harry is a junior doctor at University College London Hospital. He received a 1st class Bachelor’s in Psychology and Medical Degree from University College London and has completed post-graduate fellowships at Yale University and Osaka University (Japan). He was selected for the Value-Based Healthcare Delivery course at Harvard Business School.


Ivan Beckley

Ivan is a UCL medical student, founder of a non-profit organisation named Limitless Generation CIC, founder of a healthcare mobile application named SUVERA and a student ambassador for Doctorpreneurs. Ivan hopes to drive positive change within healthcare via entrepreneurial thinking and a design focus. 

Dr Piyush Mahapatra

Piyush is a Specialist Registrar in Trauma and Orthopaedics having completed his undergraduate training at University of Cambridge and University College London. He is passionate about the implementation of digital technologies within musculoskeletal care and is product manager for the eTrauma patient pathway management system.

Dr Simon Munk

Originally trained in medicine, Simon has worked principally in emergency medicine, anaesthetics and intensive care. He has subsequently been developing a career leading the transformation of health services through translation of research findings into widespread practice. He has focused over the last five years on transforming mental health services for children and young people.

Dr Kayur Patel

Kayur is an Anaesthetic registrar in Surrey. He completed the National Medical Director’s Clinical Fellow Scheme and recently undertook the Harvard Business School Value-Based Healthcare Delivery Seminar. Kayur has a keen interest in quality improvement and how good medical leadership can facilitate this.

Dr Chris Lovejoy

Chris is a Junior Doctor working in London, who graduated from Cambridge University in 2017. He wants to help use data to improve healthcare, with a particular interest in Machine Learning. He has worked as a Digital Health Consultant and researched outcomes in public health and in surgery.