Ms Oluyemi Femi-Ayeni
Clinical Nurse Specialist GI Physiology
About Oluyemi Femi-Ayeni
Miss Oluyemi Femi-Ayeni is an AGIP/BSG-accredited Independent Healthcare Practitioner specialising in GI Physiology. She currently serves as a Clinical Nurse Specialist in GI Physiology at Welbeck and is also the Lead Nurse for GI Physiology at Barking, Havering and Redbridge University Hospitals NHS Trust.
Miss Femi-Ayeni performs a wide range of upper and lower gastrointestinal diagnostic tests, including oesophageal manometry, 24-hour pH-impedance monitoring, hydrogen and methane breath testing, as well as other lower GI physiology assessments.
She is a UK-registered adult nurse and has been on the NMC register since 2003. Over the years, she has worked in various NHS hospitals across the country. In 2009, she began her career in GI Physiology as a Trainee Nurse Practitioner at the Royal Free Hospital, where she received on-the-job training. During this period, she also completed academic modules in both upper and lower GI testing at De Montfort University over a span of two to three years.
In 2014, Miss Femi-Ayeni successfully completed all required theoretical and practical assessments and obtained her accreditation from the Association of GI Physiologists (AGIP/BSG) as an Accredited Independent Healthcare Practitioner in GI Physiology. She has maintained this accreditation since 2014, renewing it every two years.
Prior to her current role, she worked as a GI Physiology Practitioner at the Royal Free Hospital until March 2024. She now serves as the sole GI Physiologist within her current NHS Trust.
Clinical posts:
Clinical Nurse Specialist GI Physiology at Welbeck
Lead Nurse GI physiology, BHRUT; CDC Barking
Expertise
- Oesophageal Manometry
- 24-hour pH-impedance Monitoring
- Hydrogen and Methane Breath Testing and Other Upper and Lower Gastrointestinal Assessments
Overview
- Age of patients seen
- 18+
- Qualifications
- Professional memberships
Association of Gastrointestinal Physiologists
The British Society Of Gastroenterology
The Nursing and Midwifery Council
Royal College of Nursing (covered by indemnity insurance up to £3 million)
Consultations and services
Insurers covered
Locations
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Frequently asked questions
Yes, but only for certain services. Some consultations, assessments, and treatments can be booked directly, while others require a GP or specialist referral. Please check the relevant service page for guidance, and contact the centre if you’re unsure.
We aim to offer appointments as quickly as possible, and many services have same-day or next-day availability. Waiting times vary depending on the appointment type, specialty, and consultant availability, but our team will always offer the earliest suitable appointment.
Yes. You can arrange an appointment for a family member, or someone you care for, just let us know when you get in touch. We’ll need their details and consent to complete the booking, unless you're their legal guardian or have power of attorney.
Your first consultation includes a detailed discussion of your symptoms, medical history, and lifestyle factors, followed by a thorough examination. It’s helpful if you can bring the results of any previous investigations with you, as well as a list of your current medications. Come with a comfortably full bladder so you can provide a urine sample if requested.