GPs
Dr Michael Sandberg
Medical Director
Michael is the Medical Director of 90 Sloane Street.
He has had specialist training in internal medicine, cardiology, echocardiography and cancer medicine and an interest in bringing forward the new treatments in dementia.
Michael is keen that the cancer care at 90 Sloane Street is of the highest level and has attended the American Society of Clinical Oncology five-day meeting in Chicago for 5 years since 2016.
He developed the cardiology and ultrasound programme at 90 Sloane Street.
Co-founder and medical director of The London Genetics Centre, part of 90 Sloane Street.
Rose Island Laboratory at 90 was set up by Michael together with Andrew Baldwin, Bella Sadeghi and Ana Gonzaga.
Other Interests: Family medicine, psychiatry and children’s healthcare.
Outside of work Michael’s passions are sailing an old wooden boat, tennis, singing and opera.
Qualified in 1983. GMC registration number: 2846093
Email: [email protected]
Dr Tim Lyons
GP
Tim completed his post-graduate specialist training in general medicine, acute medicine, oncology, haematology, elderly care, obstetrics and gynaecology. Tim has worked as a GP Trainer and medical education since 2005 and he has been in charge of our out-of-hours rota for many years.
Interests:
Paediatrics, general medicine, elderly care.
Dr Tim Lyons is married with three children and lives in the local area.
Qualified in 1995.
GMC registration number: 4209810
Dr Sara Kayat
GP and Author
Dr. Sara Kayat is a highly experienced GP with a passion for sexual and reproductive health, women’s health, and lifestyle medicine, providing holistic care to her patients. Known for her approachable style, Sara enjoys advising on everyday health topics—from diet and exercise to managing stress and sleep issues.
As a media medic, Sara is the resident doctor on ITV’s This Morning and contributes to regular health columns, sharing insights on the latest research and headlines. She is also the author of How to Have a Baby, published by HarperCollins—an unbiased guide to pregnancy, birth, and the first year of parenthood. Drawing on her medical expertise and personal experience as a mother of two young children, the book offers practical, balanced advice for new and expecting parents.
A strong advocate for mental health, Sara incorporates mindfulness and yoga into her daily life. She is passionate about preventative medicine, promoting both mental and physical wellness through evidence-based lifestyle choices.
Sara’s adventurous side shines through her love of extreme sports, including scuba diving, skiing, and bouldering, as well as her enthusiasm for travel. She even participated as the resident doctor on Channel 4’s Bear Grylls’ Celebrity Island.
Interests:
Sexual and reproductive health, Lifestyle medicine, Women’s health
Qualifications:
MBBS, BSc, MRCGP, DFFP
Qualified in 2009 from King’s College London
Dr Simrat Marwah
GP
Simi completed her medical training in Manchester and has since been living and working in Chelsea.
Her post graduate training included, general medicine and surgery, elderly medicine, orthopaedics, Emergency medicine and paediatrics.
She has done a lot of work for the NHS 111 service especially during the pandemic.
She has a vast international medical network which has been very helpful in caring for the individuals and families she looks after.
Interests: Preventative medicine/screening, lifestyle medicine, mental health.
Simi is an avid tennis player and is often found travelling on a weekend to get in a city break or watch the tennis, cricket and Formula 1.
Dr Maryam Behnam
GP
Maryam finished her GP training in Kent in 2014 and then became a member of The Royal College of General Practitioners.
Her passion for preventative and longevity medicine led her to obtain post- graduate diplomas in lifestyle medicine and intravenous nutrient therapy.
She also holds a Post-Graduate Diploma in Clinical Dermatology from Queen Mary University of London and has got extensive experience in regenerative aesthetic medicine.
Interests: Longevity / preventative medicine, Health screenings , Regenerative Aesthetics
Hobbies: Travelling, Yoga , Swimming
