Faculty & Fellows

​Vascular Surgery Fellowship Faculty

Daniel J. Bertges, MD
Chief, Division of Vascular and Endovascular Therapy

Program Director, Vascular Surgery Fellowship
Professor of Surgery and Medicine  

Daniel [dot] Bertgesuvmhealth [dot] org (Daniel[dot]Bertges[at]uvmhealth[dot]org)

Fellowship: University of Pittsburgh Medical Center - Vascular Surgery
Research Fellowship: Beth Israel Deaconess Medical Center
Residency: University of Pittsburgh – Surgery
Medical School: University of Pittsburgh

Mead Ferris, MD

Associate Director, Vascular Surgery Fellowship, Assistant Professor of Vascular Surgery

Fellowship: University of Vermont Medical Center- Vascular Surgery
Fellowship: Prisma Health-University of South Carolina- Surgical Critical Care
Residency: Prisma Health-University of South Carolina- Surgery
Medical School: St. George’s University School of Medicine

Katelynn Ferranti, MD
Assistant Professor of Vascular Surgery

Medical Director, David Pilcher Noninvasive Vascular Lab

Residency: Penn State Health – Vascular Surgery Integrated Residency
Medical School: University of Vermont Larner College of Medicine

Julie A. Lahiri, MD, FACS
Associate Professor of Surgery

Fellowship: Cleveland Clinic Foundation - Vascular Surgery
Residency: UVM Medical Center -Surgery
Medical School: Wright State University School of Medicine

Andrew Stanley, MD, FACS
Associate Professor of Vascular Surgery

Fellowship: Boston University Medical Center - Vascular Surgery
Residency: University of Massachusetts School of Medicine - Surgery
Medical School: Brown University School of Medicine

Georg Steinthorsson, MD, FACS
Associate Professor of Vascular Surgery

Fellowship: Yale University - Vascular Surgery
Residency: Dartmouth Medical School - Surgery
Medical School: University of Iceland Medical School

Current Vascular Surgery Fellows

Sean Liebscher, MD

Sean Liebscher, MD received a Bachelor of Science in Biochemistry from the University of Notre Dame in Notre Dame, IN. He also earned a master’s degree in Entrepreneurship from the University of Notre Dame in Notre Dame, IN.  He attended Loyola University Stritch School of Medicine in Chicago, IL where he received his Doctorate of Medicine in 2018.  He completed his general surgery residency at the University of Kansas, Kansas City, KS. Dr. Liebscher is anticipated to graduate in July 2025.

Robyn Guinto, MD

Robyn Guinto, MD received a Bachelor of Science in Biology from Temple University in Philadelphia, PA. She attended Drexel University College of Medicine where she received her Doctorate of Medicine in 2017. She completed her general surgery residency at the Jersey Shore University Medical Center in Neptune, NJ.  Dr. Guinto is anticipated to graduate in July 2024.

Future Vascular Surgery Fellows

Nathan Patel, MD

Nathan Patel, MD received a Bachelor of Science in Computer Science from the University of Michigan in Ann Arbor Michigan.  He attended the University of Michigan School of Medicine where he received his Doctorate of Medicine in 2018. Dr. Patel is currently working on his general surgery residency at Atrium Health Wake Forest Baptist Hosptial.  We anticipate Dr. Patel joining our Vascular Surgery Fellowship in August 2024.

Graduated Vascular Surgery Fellows

Christine Kariya, MD

Christine Kariya, MD received a Bachelor of Science in Biomedical Engineering from Duke University in Durham, NC. She attended the University of Maryland School of Medicine where she received her Doctorate of Medicine in 2013. After completion of her general surgery residency at the University of Maryland in Baltimore, MD. Dr. Kariya graduated from our Vascular Surgery Fellowship on July 31, 2023.

Mustafa Siddique, MD

Mustafa Siddique, MD received a Bachelor of Science in Neuroscience from UCLA in Los Angeles, CA. He attended St. Matthew’s University School of Medicine in Cayman Islands where he received his Doctorate of Medicine in 2013. After completion of his general surgery residency at Maimonides Medical Center in Brooklyn, NY. Dr. Siddique graduated from our Vascular Surgery Fellowship on July 31, 2022.

Griffin Boll, MD

Griffin Boll, MD received a Bachelor of Science in Comprehensive Science from Villanova University in Villanova, PA.  He attended The University of Vermont College of Medicine in Burlington, VT where he received his Doctorate of Medicine in 2013.  He completed his general surgery residency at Tufts Medical Center in Boston, MA.  Dr. Boll graduated from our Vascular Surgery Fellowship on July 31, 2021.

Mead Ferris, MD

Mead Ferris, MD received a Bachelor of Science in Biology from the University of the South in Sewanee, TN. He also earned a Master’s of Science in Physiology and Biophysics from the University of the South. He attended St. George’s University School of Medicine in Grenada where he received his Doctorate of Medicine in 2012. After completion of his general surgery residency at Palmetto Health in Columbia, SC. Dr. Ferris graduated from our Vascular Surgery Fellowship on July 31, 2020.

Mark Perry, MD

Mark Perry, MD received a Bachelor of Science in Chemistry and Sociology at Union College in Schenectady, NY. He also earned an MBA in Health Care Administration from Union College. He attended Albany Medical College in Albany, New York where he received a Doctorate of Medicine in 2012. Dr. Perry completed a surgery residency at Lehigh Valley Health Network in Allentown, PA. Dr. Perry graduated from our Vascular Surgery Fellowship on July 31, 2019.

Mrinal Shukla, MD

Mrinal Shukla, MD, attended Emory University in Atlanta, Georgia where he graduated in 2007 with a Bachelor of Science in Chemistry. He attended Wake Forest University School of Medicine in Winston-Salem, North Carolina where he received a Doctorate of Medicine in 2011. Dr. Shukla completed a surgery residency at Mercer University School of Medicine in Savannah, Georgia in June 2016. He served as Administrative Chief Surgery Resident from 2015-2016. He speaks fluent English and advanced Hindi. Dr. Shukla graduated from our Vascular Surgery Fellowship on July 31, 2018.

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