Our Medical Team
Specialist practitioners leading the UK in medical cannabis care
Dr. Sunny Nayee
Lead Clinician & Medical Director | Chronic Pain Specialist
Education
Cambridge University Medical School
Current NHS Role
Imperial College Healthcare NHS Trust
Awards
SHA Dragon's Den Top Prize Winner
Professional Memberships
BMA, BPS, WIP, EFIC
Dr Sunny Nayee trained at Cambridge University Medical School. He completed
training rotations in Addenbrooke’s Hospital in Cambridge, the Royal Brompton
Hospital in South Kensington and Imperial College Healthcare NHS Trust in West
London where he currently works.
Dr Nayee has a prize-winning career having been awarded the top prize from the
Strategic Health Authority’s Dragon’s Den competition which was covered
extensively in the national press. Dr Nayee regularly presents at national and
international meetings. He regularly attends cadaveric workshops in the United
Kingdom and across the world to learn and implement cutting-edge techniques. He
is a member of multiple professional bodies including the British Medical Association,
Association of Anaesthetists of Great Britain and Ireland, British Pain Society, Spinal
Interventional Society, World Institute of Pain, European Pain Federation and the
Association of Obstetric Anaesthetists.
Dr Nayee is experienced in the medical and multidisciplinary management of a wide
range of chronic pain conditions. He regularly presents his work at national and
international meetings and regularly attends cadaveric workshops in the United
Kingdom and across the world to learn and implement cutting edge techniques.
Dr Nayee is the Medical Director at Integro Medical Clinics, one of the foremost
cannabis prescribing clinics in the UK.
Dr. Niraj Singh
Lead Psychiatric Consultant | Neurodevelopmental Specialist
Qualifications
MBChB FRCPsych MBA PGDL PGDC
Specialties
ADHD, Autism-related mental illness
Contributions
Cannabis Health News columnist
Leadership
UKMCCS Executive Committee
Dr. Niraj Singh is a Consultant Psychiatrist and specializes in Neurodevelopmental
Psychiatry. He has extensive experience in treating adults with ADHD, mental illness
associated with Autism, intellectual disabilities as well as other mental illnesses.
Dr. Singh is a University of Leicester medical school graduate and completed his
core training in Leicestershire as well as his higher training in Nottinghamshire. He
currently works as a community NHS Consultant since 2009 and also in private
practice. He has extensive experience of treating people with medical cannabis. He
has a Postgraduate diploma in Mental Health Law as well as in Personal coaching
and mentoring. He attained a Masters in Business Administration degree in 2013
and has been involved in the set up of healthcare sector services as well as making
service improvements.
He is a Fellow of the Royal College of Psychiatrists, an executive member of the
Royal College of Psychiatrists with both regional and national roles, and an
executive committee member for the UK Medical Cannabis Clinicians Society. He
regularly conducts teaching on medical cannabis and contributes to Cannabis Health
News magazine.
Dr. Tahzid Ahsan
Consultant Psychiatrist | Rehabilitation Specialist
Specialization
General Adult Psychiatry & Rehabilitation
Publications
"The Doctor's Perspective" series author
Education Role
GMC-registered Clinical Supervisor
Digital Leadership
Medical Director of MedBud.Wiki
Dr. Tahzid Ahsan is a Consultant Psychiatrist with a dynamic journey that began at
Leicester Medical School, where he graduated in 2004. Initially setting his sights on
General Practice, he found his true calling in psychiatry in 2011. His training took him
across the Southwest and Manchester, culminating in his Consultant Psychiatry
qualification in 2019.
Dr. Ahsan is not just a specialist; he’s a leader in General Adult Psychiatry and
Rehabilitation. His expertise is in the acute care of patients grappling with severe
conditions like psychosis, mania, and severe depression, often necessitating NHS
hospital admission. Beyond his clinical expertise, Dr. Ahsan is a respected
Educational and Clinical Supervisor on the GMC register, passionately nurturing the
next generation of medical professionals within the NHS framework.
In 2020, he ventured into the evolving landscape of medical cannabis, swiftly
becoming one of the UK’s leading prescribers in psychiatry. A fervent advocate, he
penned the groundbreaking series, “The Doctor’s Perspective,” for Cannabis Health
News, demystifying the benefits of medical cannabis for peers, patients, and the
broader community. Dr. Ahsan also holds the mantle of Medical Director for
MedBud.Wiki, the UK’s premier trusted resource for medical cannabis information,
underscoring his commitment to advancing patient care and education in this
emerging field.
Marco Serafim
Specialist Nurse | Integro Medical Clinic - Review Team
Trained as a nurse in Portugal over 20 years ago, he has built a diverse career across a range of acute clinical settings. Currently working as an Advanced Clinical Practitioner in a busy emergency department, he brings extensive experience, clinical independence, and a calm, compassionate approach to patient care.
For the past two years, he has also worked in the field of medical cannabis, combining innovation with a strong commitment to evidence-based practice. Known for his empathy, critical thinking, and adaptability, he consistently delivers patient-centered care in high-pressure environments.
Outside of work, he’s a keen runner and a devoted dog owner, finding balance and energy in the outdoors.
James Gunn
Specialist Nurse | Integro Medical Clinic - Review Team
James is a highly experienced specialist nurse with over 17 years in healthcare and a leading voice in the field of medical cannabis in the UK. He brings extensive expertise in chronic pain, mental health, and complex care, having worked across both the NHS and private sectors. At our clinic, James plays a key role in assessing patients, creating personalised treatment plans, and providing ongoing support throughout their cannabis journey.
Passionate about patient education and advocacy, James is committed to ensuring safe, ethical, and effective use of cannabis-based therapies, guided by the latest clinical evidence and regulatory standards.
Patients value his compassionate, down-to-earth approach and deep understanding of how cannabis can transform quality of life.