• MD, Trinity College Dublin (1987)
• Registered Vascular Technologist (RVT) (1987)
• Diploma in Medical Management for Doctors, Institute of Public Administration (1993)
• Master of Business Administration (MBA), Smurfit Business School (1997)
• Registered Physician in Vascular Interpretation (RPVI) (2017)
• Awarded European Fellowship of Excellence (EFE-VAS) (2019)
• Vascular fellowship completed in Southern Illinois University School of Medicine (SIU), Springfield Illinois, USA, under Prof. David S. Sumner
• Appointed lecturer in vascular disease, Trinity College Dublin (1992)
• Appointed senior lecturer in vascular disease, Trinity College Dublin (2002)
• Appointed associate professor in vascular disease, Trinity College Dublin (2010)

Dr Colgan is involved in wound care and ultrasound teaching courses in Trinity College Dublin, University College Dublin and The Royal College of Surgeons in Ireland. She undertakes student teaching for Trinity College Dublin in addition to GP trainee teaching.

• MD, RVT, RPVI, MBA, EFE-VAS

• Founding member, Vascular Medicine Ireland
• Board Member, VAS - European Independent Foundation in Angiology/ Vascular Medicine
• Irish representative on the board of The European Union of Medical Specialists (UEMS) Division of Vascular Medicine/Angiology
• Chair of the UEMS Committee for accreditation of vascular medicine training centres in Europe.
• Committee member of The National Lymphoedema Framework Ireland (NLFI)
• Member of the HSE Working Group on a model of care for lymphoedema/ lipoedema

Irish Healthcare Award for Best Outpatient Initiative 2014

• Venous ulceration
• New techniques in ulcer management
• Lymphoedema

Dr Colgan has over 100 publications in national and international journals as well as twenty one book chapters.