Congratulations to our 2026 Graduating Trainees!

The Department of Radiology honored this year's graduating class of radiology trainees on June 1, 2026, at Columbia University's historic Faculty House. The graduating class was made up of seven diagnostic radiology residents, two interventional radiology integrated residents, and 14 fellows. Graduating diagnostic radiology residents successfully completed the four-year diagnostic radiology residency and will all go on to fellowship training. One additional resident who trained with the class of 2026 will complete a fifth year of training at Columbia as part of the the five-year Interventional Radiology Integrated Residency.

In opening remarks, department chair Ajay Gupta, MD, MS, congratulated the residents on their leadership and outstanding work over the past four years. (photos by Diane Bondareff)

Radiology Residency Class of 2026. Back row, Left to right: Brendan Sullivan, MD; Abraham Bordon, MD; Russel Posner, MD, PhD; Andrew Eisenthal, MD; Samuel Fordyce, MD. Front row, left to right: Zaid Bilgrami, MD; Maham Siddique, MD; Saheeb Ahmed, MD.

Ajay Gupta, MD, chair of the Department of Radiology, congratulates this year's graduating trainees.

Diagnostic Radiology Residency Program Director Pallavi Utukuri, MD, reflected on four years of accomplishments by Columbia's radiology residents.

Chief Resident Acknowlegements. Left to right: Chief Resident Samuel Fordyce, MD; Program Director Pallavi Utukuri, MD; Associate Program Director Nahill Matari, MD; Associate Program Director Sonali Lala, MD; Chief Resident Saheeb Ahmed, MD.

Division of Interventional Radiology with graduating trainees Connie Liou, MD (center front); Abin Sajan, MD (second from right); Michael Chiok, MD (fourth from left).

Division of Musculoskeletal Radiology with MSK Radiology graduating fellow Tina Roa, MD. Left to right: Sonali Lala, MD; Eitan Sosner, MD; Rocky Walter, MD; Michael Rasiej, MD; Matthew Moy, MD; Zohaib Ahmad, MD; Tina Roa, MD.

Graduating neuroradiology fellows with program director Panagiotis Sideras, MD, PhD. Left to right: David Livingston, MBBS; Charles Sutton, MD; Steven Robinson, DO; Panagiotis Sideris, MD, PhD; Kevin Pham, DO; Samvel Gharibyan, MD.

Breast Imaging Fellowship Director Roberto Lo Gullo, MD (at podium) presents certificate to graduating fellow Jonathan Lee, MD.

First-year resident Laura Santos, MD (right) received the Community Engagement Award, presented by Associate Chair of Internal Community Engagement Melanie Moses, MD.

Abdominal Imaging graduating fellows. Left to right: Program Director Pei-Kang (Ken) Wei, MD; Shyam Amin, MD; Jooh Oh, DO; Gregory Lacher, MD; Wendy Hou, MD; Harleen Kaur, MD; Division Chief Lyndon Luk, MD.

The Jeffrey H. Newhouse Award for Outstanding Performance in Abdominal Imaging recipients Kathy Dai, MD, and William Gibson, MD (center). Division Chief Lyndon Luk, MD (far left), and Jeffrey Newhouse, MD (far right)

View from the Faculty House at Columbia University

Graduating Diagnostic Radiology Residents

• Saheeb Ahmed, MD
• Zaid Hassan Bilgrami, MD
• Abraham Bordon, MD
• Andrew Murray Eisenthal, MD, MSE
• Russell David Posner, MD, PhD
• Maham Siddique, MD
• Brendan Sullivan, MD, MA

Graduating Interventional Radiology Integrated Residents

• Abin Sajan, MD
• Connie Liou, MD

Chief Resident Acknowledgements

• Saheeb Ahmed, MD
• Samuel Fordyce, MD

Fellows Certificate Presentations

• Shyam Amin, MD - Abdominal Imaging
• Gregory Lacher MD - Abdominal Imaging
• Joon Oh, DO - Abdominal Imaging
• Wendy Hou, MD - Abdominal Imaging
• Harleen Kaur, MD - Abdominal Imaging
• Jonathan Lee, MD - Breast Imaging
• Michael Chiok, MD - Interventional Radiology Independent
• Tina Roa, MD - Musculoskeletal Radiology
• Samvel Gharibyan, MD - Neuroradiology
• David Livingston, MD - Neuroradiology
• Kevin Pham, DO - Neuroradiology
• Steven Robinson, DO - Neuroradiology
• Charles Sutton, MD - Neuroradiology
• Shikhar Gupta, MD - Nuclear Medicine

Special Recognition in Nuclear Medicine Training

• Anahita Aria Tabar, MD

Special Awards

• Jeffrey H. Newhouse Award for Outstanding Performance in Abdominal Imaging: William Gibson, MD, and Kathy Dai, MD
• Community Engagement Award: Laura Santos, MD
• Excellence in Medical Student Education: Brendan Sullivan, MD

Certificates of Appreciation 

• Faculty Mentor of the Year - Lyndon Luk, MD
• Faculty Teacher of the Year - Lyndon Luk, MD
• Lecturer of the Year - Nahill Matari, MD
• Fellow Teacher of the Year - David Livingston, MD
• Resident Teacher of the Year - Zaid Bilgrami, MD