
Dr Asif Malik Humayun
A highly experienced consultant physician providing specialist, evidence-based care for diabetes, hormonal disorders and medical weight management across London, Milton Keynes, Northampton and Hatfield.

About Dr Asif Malik Humayun
Dr Asif Malik Humayun is a Consultant Physician in Diabetes, Endocrinology and General Internal Medicine with a strong record in clinical leadership, service redesign, private practice, education and research. His current work spans complex diabetes, endocrine disorders, diabetes technology, obesity and metabolic medicine, and multidisciplinary service development across NHS and independent sector settings.
As Clinical Lead for Diabetes and Endocrinology at Milton Keynes University Hospital NHS Foundation Trust and Clinical Lead for the Milton Keynes Integrated Diabetes Service, Dr Humayun has led service transformation for a large population with diabetes, strengthened MDT governance, improved access to specialist care, and supported primary care clinicians through education, joint clinics and virtual advice models.
He has a particular interest in obesity and metabolic medicine, diabetes technology, thyroid disease, reproductive endocrinology and male hypogonadism. His academic activity includes peer-reviewed publications, invited national and international lectures, and principal investigator roles in clinical trials including SIRONA, ACTIVATE, UK-EDI, DRoPLeT and Start Right.
Dr Humayun sees patients at several leading private hospitals including Cromwell Hospital in Kensington, London, the Saxon Clinic in Milton Keynes, Three Shires Hospital in Northampton, One Hatfield Hospital, and Mayo Clinic London. He also offers secure video consultations for patients across the UK and internationally.
44+
Publications
Peer-reviewed journals
11,441+
Reads
On ResearchGate
451+
Citations
Google Scholar
Key Clinical & Strategic Strengths
Current Appointments
Consultant Physician in Diabetes & Endocrinology
Milton Keynes University Hospital NHS Foundation Trust
Clinical Lead for Diabetes & Endocrinology; Clinical Lead for Integrated Diabetes Service; complex diabetes/endocrine clinics; insulin pump and diabetes technology services; educational supervision; clinical research and service development.
Consultant Physician, Endocrinologist & Diabetologist
Circle Health Group, Cromwell Hospital London & AKESSA Group
Endocrine, diabetes and medical obesity clinics; complex metabolic medicine; collaboration with urologists and andrologists for male sexual dysfunction; patient education and shared decision-making.
Regional Advisor
Royal College of Physicians London – Oxford and Thames Valley
Strategic leadership in education and training; regional meetings and initiatives; representation at RCP meetings; review of consultant job descriptions; AAC panel participation; support to local institutions and clinicians.
Clinical Lead for Milton Keynes Integrated Diabetes Service
Milton Keynes University Hospital NHS Foundation Trust
Managing a large diabetes specialist nursing team; supporting improved outcomes for more than 17,000 people with diabetes.
Leadership, Management & Service Development
- Lead for the Department of Diabetes, Endocrinology and Metabolic Diseases at Milton Keynes University Hospital.
- Lead for Milton Keynes Integrated Diabetes Service, managing a large diabetes specialist nursing team supporting more than 17,000 people with diabetes.
- Reduced secondary care waiting times from more than nine months to less than two months through service redesign.
- Established monthly business meetings, MDTs and weekly management meetings to strengthen departmental governance.
- Developed primary-care-facing education, joint clinics, district nurse support and nursing home advice models.
- Set up Endocrine and Diabetes MDTs for complex multi-system endocrine and metabolic cases.
- Addressed pressure on endocrine services through weekly virtual clinics, enabling prompt specialist advice and reducing clinic burden.
Qualifications & Education
FRCP London
Fellow of the Royal College of Physicians
MRCP (UK)
Member of the Royal College of Physicians
SCE Diabetes, Endocrinology & Metabolic Diseases
Joint Royal Colleges of Physicians Training Board
FCPS General Internal Medicine
College of Physicians & Surgeons Pakistan
MCPS General Internal Medicine
College of Physicians & Surgeons Pakistan
CCT General Internal Medicine, Diabetes, Endocrinology & Metabolic Diseases
United Kingdom
PG Certificate in Medical Education
University of Cambridge
MBBS
University of Health Sciences, Pakistan
Education Timeline
PG Certificate in Medical Education
University of Cambridge
SCE Diabetes, Endocrinology & Metabolic Diseases
JRCPTB, United Kingdom
MRCP (London)
Royal College of Physicians, London
FCPS (General Internal Medicine)
CPSP, Pakistan
MCPS (General Internal Medicine)
CPSP, Pakistan
MBBS
University of Health Sciences, Pakistan
Honours & Awards
Clinical Research & Trials
Dr Humayun's research is directly relevant to NHS care delivery and informs effective, scalable and patient-centred models of treatment. He has served as Chief Investigator / Principal Investigator or site investigator in the following studies:
SIRONA
Proof-of-concept trial to evaluate the efficacy of Sirona hydrogel in maintaining weight loss after GLP-1 therapy.
Rilzabrutinib in Graves’ Disease
Open-label Phase 2 study of efficacy and safety of rilzabrutinib in adult participants with Graves’ disease.
OCEAN(a)-PreEvent
Phase 3, double-blind, randomised, placebo-controlled multicentre study assessing olpasiran to prevent first major cardiovascular events in participants with elevated lipoprotein(a).
SIRONA First-in-Human
Safety, feasibility and tolerability of an expanding hydrogel tablet designed to promote weight loss in adults with BMI 30–40.
ACTIVATE Trial
Digital health and financial incentive intervention to promote physical activity in patients living with type 2 diabetes.
Start Right Study
Accurate classification of diabetes and identification of the best treatment early on.
UK-EDI Study
Early detection of pancreatic cancer in patients with recently diagnosed diabetes.
DRoPLeT Study
Detection of pancreatic beta-cell function in adults with a recent diagnosis of type 1 diabetes.
Publications in Peer-Reviewed Journals
Selected peer-reviewed publications and manuscripts in press.
Editorial, Peer Review & Professional Contribution
Associate Editor: Journal of Pakistan Society of Internal Medicine (2019 to date)
Reviewer for: BMJ Case Reports; British Journal of Diabetes & Vascular Diseases; Walailak Journal of Science and Technology; The Clinics; Rawal Medical Journal; Journal of Cardiovascular Medicine; JPSIM; Diabetic Medicine.
Conference Papers & Invited Lectures
Dr Humayun has presented at local, regional, national and international meetings.
Teaching & Medical Education
- Postgraduate Certificate in Medical Education from the University of Cambridge (2022).
- Trained Educational Supervisor; supervises specialist registrars, GPSTs and locally employed doctors.
- Local tutor for locally employed doctors in medicine; established pastoral, onboarding and development support.
- Regular teaching for medical students, foundation doctors, core medical trainees, registrars, GPs and nurses.
- Regular education delivery at Milton Keynes Diabetes Annual Conference and regional CME events.
- Trained GMC appraiser, appraising NHS colleagues annually.
- Teaching on insulin safety and inpatient diabetes management through Think Glucose training.
- Delivered thyroid education sessions for Thyroid MK and local GP practices.
- Previously facilitated Basic and Advanced Cardiac Life Support courses through the American Heart Association.
- Served as focal person for Dengue fever in Punjab, Pakistan during 2006 and 2008 outbreaks.
Clinical Governance, Audit & Quality Improvement
Local guidelines: Author of several trust guidelines and policies; involved in multiple service-development and QI projects locally and at ICS level.
Work & Training History
Locum Consultant, Diabetes & Endocrinology
University Hospital Southampton
Specialist Registrar, Diabetes & Endocrinology
University Hospital Southampton
Specialist Registrar, Diabetes & Endocrinology / GIM
Royal Bournemouth Hospital
Specialist Registrar, Diabetes & Endocrinology / GIM
Poole Hospital NHS Trust
Specialist Registrar, Diabetes
Queen Alexandra Hospital, Portsmouth
Specialist Registrar, Diabetes
Royal Hampshire County Hospital
Specialist Registrar, Diabetes
West Suffolk Hospital, Bury St Edmunds
Trust Specialty Doctor / SPR, Diabetes, Endocrinology & GIM
Royal Bournemouth Hospital
Senior Registrar
Mayo Hospital, Lahore
Postgraduate Resident
Jinnah Hospital, Lahore
Postgraduate Resident
Mayo Hospital, Lahore
Languages
English
Proficient (C2)
Urdu
Proficient (C2)
Punjabi
Proficient (C2)
