Dr. Fermín Mearín Manrique, MD, PhD, is a leading gastroenterologist and Director of the Digestive System Service at Centro Médico Teknon in Barcelona, Spain. With more than 45 years of clinical and academic experience, he specializes in functional digestive disorders, motility, and digestive oncology.
Full Name: Dr. Fermín Mearín Manrique, MD, PhD
Years of Experience: Over 45 years
Main Specialty: Gastroenterology—functional motility disorders, reflux disease, IBS, chronic constipation
Educational Background
Dr. Mearín’s academic journey includes both national and international training:
Degree in Medicine & Surgery: Autonomous University of Madrid, Spain—graduated with honors
Specialization in Digestive System: Hospital de la Princesa, Madrid
Advanced Fellowship: Mayo Clinic, Rochester, Minnesota, USA
Training: Gastroenterology department, Leiden University Medical Center, Netherlands
Doctorate: Cum laude, Universidad Autónoma de Madrid
He has built a distinguished career in both clinical practice and leadership in gastroenterology:
Current Role: Director of the Digestive System Service, Centro Médico Teknon (since 2001)
Prior Roles: Assistant Physician, Gastroenterology at Hospital Vall d’Hebron (1986–2001); founded and directed digestive motility units at Clínica Corachan and Clínica Teknon (1991–1998)
Clinical Focus: Functional digestive disorders, reflux and Barrett’s esophagus, Helicobacter pylori, dyspepsia, IBS, chronic diarrhea and constipation
Leadership: Founded Teknon Institute for Constipation & Incontinence; coordinator of Teknon Obesity Unit
Academic Contributions
Former President of the Spanish Gastroenterology Association (AEG, 2008–2012)
Chairman, World Gastroenterology Organization’s Functional Bowel Disorders committee
Director of the AEG Annual Residents Course
Collaborator at the Faculty of Medicine, Autonomous University of Barcelona (1986–2001)
Speaker and instructor at national and international conferences on motility and functional disorders
Areas of Expertise
He offers excellence in a wide range of digestive conditions:
Gastroesophageal reflux disease and Barrett’s esophagus
Dyspepsia, gastritis, and Helicobacter pylori eradication
Digestive oncology and second opinion services
Management of iron-deficiency anemia in IBD patients
Publications and Research
Dr. Mearín is a prolific researcher with over 400 scientific publications. He has authored clinical guidelines on constipation management and contributed to influential studies on IBS subtypes and iron therapy in IBD. He also published “Irritable Bowel Syndrome: Pain in Spain” in the American Journal of Gastroenterology.
Patient Care Philosophy
Dr. Mearín combines scientific rigor with compassionate patient care:
Communicates complex information in understandable terms
Emphasizes evidence-based treatments rooted in scientific data
Welcomes national and international patients through Teknon’s global programs
Utilizes scientific evidence to dispel myths and inform patient choices through his blog “El Blog del Doctor Mearin”
Highly praised for his patience, clarity, and supportive demeanor by numerous patients
Professional Affiliations
Member, American Gastroenterological Association
Member, Spanish Society of Digestive Pathology
Member, European Society of Neurogastroenterology & Motility
Member, World Gastroenterology Organization
Honorary member of Chilean, Uruguayan, and Japanese Gastroenterology societies
Editorial reviewer for Gastroenterology and Neurogastroenterology journals
FAQs
Is Dr. Fermín Mearín Manrique board-certified?
Yes. He is a certified specialist in Gastroenterology with over four decades of practice.
What types of procedures does he perform?
He performs diagnostic endoscopies, motility studies, and offers second opinions on reflux, IBS, and digestive oncology.
Does he treat international patients?
Yes. He is part of Teknon’s international program and sees patients from around the world.
How long is a typical hospital stay?
Most diagnostic and therapeutic procedures are outpatient. Complex cases are managed through coordinated care.
What languages does he speak?
He is fluent in Spanish and English.
Can he help with chronic constipation?
Yes. He founded Teknon’s Institute for Constipation & Incontinence and leads evidence-based protocols.
Does he publish clinical guidelines?
Yes. He co-authored the European guidelines on constipation management in adults.
Certification & Accreditation
The American Gastroenterological Association
The Spanish Society of Digestive Pathology
European Society of Neurogastroenterology and Motility
The World Gastroenterology Organisation
Patient reviews
4.8
Good
16 reviews
Detailed information
5 stars
94%
4 stars
0%
3 stars
0%
2 stars
0%
1 star
6%
Patient reviews
Spain,
Jun 10, 2025
Anonym
Un profesional maravilloso, paciente y atento a todo lo que le explicaba durante la visita, me explico todo sobre lo que padecia, me dio muchisima tranquilidad y seguridad. Lo recomiendo sin duda.
Spain,
Jun 02, 2025
Anonym
muy satisfecha con la visita y las explicaciones sobre el funcionamiento del colon irritable, y además el tratamiento funciona!!
Spain,
May 05, 2025
Anonym
Sin palabras… un digestólogo de la cabeza a los pies. Un profesional experto, amable, empático y que te genera confianza. Si buscas un digestólogo, no dudes en visitarle.
Spain,
Mar 04, 2025
Anonym
Excelente atención, profesionalidad y cercanía. Muy agradecida por el trato recibido.
Spain,
Feb 12, 2025
Anonym
Ha sido el único doctor que después de visitar más de 10 ha dado con mi enfermedad y me la ha controlado.
Excelente profesional. Le estoy agradecida infinitamente
Spain,
Jan 11, 2025
Anonym
Excelente doctor. Llevaba un año y medio con problemas de estómago con mucho dolor y había pasado por unos cuantos médicos sin éxito. Acertó en diagnóstico y tratamiento. Agradable y empatico al 100%.
Spain,
Jan 01, 2025
Anonym
Estoy encantada! Pocas veces encuentras un profesional de la cabeza a los pies. Es un digestólogo experto en su campo, amable, empático y que te genera confianza al 100%. Pocos médicos hay ya como él.
Spain,
Oct 16, 2024
Anonym
El doctor Fermín desprende calor humano. Mi caso no era grave y aún así me contó todo sobre este mismo.
Spain,
Jun 18, 2015
Anonym
Lo mejor:
Buen trato, gran profesional, y muy simpático con mi hija que era la que se visitaba.
Spain,
Mar 28, 2015
Anonym
Lo mejor:
Atento y cercano al paciente. Podría mejorar:
Opino que nada
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