EDUCATION & ACADEMIC DEGREES
- Specialty in Vascular Surgery, Vascular & Endovascular Surgery – Stony Brook University Hospital, New York, USA (2015–2020)
- Assistant Professor – Indiana University School of Medicine, IN, USA
- Certification in Vascular Ultrasound Interpretation (RPVI – Registered Physician in Vascular Interpretation) (2018)
PROFESSIONAL EXPERIENCE
- Director of the 5th Department of Vascular Surgery, Metropolitan General (2026–Present)
- Scientific Associate – Athens Medical Center, Marousi (2024–2025)
- Vascular Surgeon – Christie Clinic, Vein & Vascular Center, Champaign, Illinois, USA
- Vascular Surgeon – Indiana University Health Ball Memorial Hospital, Indiana, USA (2020–2023)
MEMBERSHIPS & EDITORIAL BOARDS
- Fellow of the American College of Surgeons (FACS)
- Fellow of the Society for Vascular Surgery (FSVS)
- Hellenic Society for Vascular & Endovascular Surgery
- Hellenic Association of Vascular Surgeons
PUBLICATIONS
- Tzavellas G, Skripochnik E, Landau D, Wain RA, Tassiopoulos AK. Intimomedial mucoid degeneration of the peripheral arteries. J Vasc Surg Cases Innov Tech. 2019;5(4):452–455. doi:10.1016/j.jvscit.2019.04.005
- Charisis N, Giannopoulos S, Tzavellas G, Tassiopoulos A, Koullias G. Endovascular Treatment of Persistent Sciatic Artery Aneurysms with Primary Stenting: A Systematic Review of the Literature. Vasc Endovascular Surg. 2020;54(3):264–271. doi:10.1177/1538574419899034
- Jasinski PT, Tzavellas G, Rubano JA, Rutigliano DN, Skripochnik E, Tassiopoulos AK. A protocol for central venous access in patients with coronavirus disease 2019. J Vasc Surg. 2020;S0741-5214(20)31474-9. doi:10.1016/j.jvs.2020.06.052
- Bannazadeh M, Sattari AR, Skripochnik E, Tzavellas G, Tassiopoulos A. Endovascular repair of infected carotid pseudoaneurysm: A case report. Int J Surg Case Rep. 2020;72:163-165. doi:10.1016/j.ijscr.2020.05.005
- Sagris M, Tzoumas A, Kokkinidis DG, Korosoglou G, Lichtenberg M, Tzavellas G. Invasive and Pharmacological Treatment of Deep Vein Thrombosis: A Scoping Review. Curr Pharm Des. 2022;28(10):778-786. doi: 10.2174/1381612828666220418084339. PMID: 35440298.
- Karasavvidis T, Bouris V, Xiang W, Tzavellas G, Charisis N, Palaiodimos L, Kigka V, Bourantas CV, Gkiatas I. Prophylaxis for Venous Thromboembolic Events in Elective Total Hip and Total Knee Arthroplasty. Curr Pharm Des. 2022;28(10):771-777. doi: 10.2174/1381612828666220418090928. PMID: 35440299.
- Kokkinidis DG, Schizas D, Pargaonkar S, Karamanis D, Mylonas KS, Hasemaki N, Palaiodimos L, Varrias D, Tzavellas G, Siasos G, Klonaris C, Kharawala A, Chlorogiannis DD, Georgopoulos S, Bakoyiannis C. Differences between Lower Extremity Arterial Occlusion vs. Stenosis and Predictors of Successful Endovascular Interventions. Medicina (Kaunas). 2023 Nov 17;59(11):2029. doi: 10.3390/medicina59112029. PMID: 38004078; PMCID: PMC10673017.
- Liapis CD, Tzavellas G. The role of transcarotid artery revascularization in symptomatic carotid stenosis. Int Angiol. 2025 Aug;44(4):316-322. doi: 10.23736/S0392-9590.25.05450-1. PMID: 40859894.
- Ilia A, Theodosopoulos I, Tzavellas G. Open Surgical Repair of a True Right Axillary Artery Aneurysm With a Reversed Cephalic Vein Bypass, Case Reports in Vascular Medicine, 2026, 4631918, 6 pages, 2026. https://doi.org/10.1155/crvm/4631918
