Pfizer COVID-19 vaccine appointments are available to our patients. Sign up for Connect today to schedule your vaccination.

Our People


Third/Fourth Year Fellows

abrams jeffrey profile image

Jeffrey Abrams, MD, PhD

Residency - Columbia University Irving Medical Center
MD – Columbia University College of Physicians and Surgeons
PhD - Columbia University College of Physicians and Surgeons 
BA - University of Pennsylvania 

hirschfeld cole profile image

Cole Hirschfeld, MD

Residency – Columbia University Irving Medical Center
MD – Weill Cornell Medical College
BS – University of Arizona

marshall dylan profile image

Dylan Marshall, MD

Residency - Columbia University Irving Medical Center
MD - Columbia University College of Physicians and Surgeons
BA - Columbia University

olshan daniel

David Olshan, MD

Residency – Massachusetts General Hospital
MD – Perelman School of Medicine at the University of Pennsylvania
BS - Cornell University

schwartz yosef profile image

Yosef Schwartz, MD

Residency - McGaw Medical Center of Northwestern University
MD – University of Florida 
BS - University of Florida

singh nickpreet profile image

Nickpreet Singh, MD

Residency – Massachusetts General Hospital
MD – Perelman School of Medicine at the University of Pennsylvania
BS - University of Pennsylvania 

Second Year Fellows

Elizabeth Feldman

Elizabeth Feldman, MD

Residency - Johns Hopkins 
MD - Temple University 
BA - Duke University 

Jacob Groenendyk

Jacob Groenendyk, MD

Residency - Northwestern University
MD - Washington University in St. Louis School of Medicine
BA - Covenant College

Arielle Kushman

Arielle Kushman, MD

Residency - Weill Cornell Medicine
MD - Harvard Medical School
BA - Harvard College

Chukwuma Onyebeke

Chukwuma Onyebeke, MD

Residency - Weill Cornell Medicine 
MD - Perelman School of Medicine at the University of Pennsylvania
BS - Yale College 

Matthew Tran

Matthew Tran, MD

Residency - Stanford University Program
MD - UT Southwestern
BA/BS - Yale

Alyssa Zaidi

Alyssa Zaidi, MD

Residency - Weill Cornell Medical
MD - Lewis Katz School of Medicine at Temple University
BA/BS - Washington and Lee University

First Year Fellows

Arun Chandra

Arun Chandra, MD

Residency - Hospital of the University of Pennsylvania
MD - Johns Hopkins School of Medicine
Hometown - Fort Collins, CO

Ethan Katznelson

Ethan Katznelson, MD

Residency - Brigham and Women's Hospital
MD - Harvard Medical School
Hometown - Stanford, CA

Mohan Satish

Mohan Satish, MD

Residency - Icahn School of Medicine at Mount Sinai Hospital 
MD - Creighton University School of Medicine
Hometown - Holbrook, NY

Joseph Wallins

Joseph Wallins, MD

Residency - Beth Israel Deaconess Medical Center
MD - Harvard Medical School
Hometown - Boston, MA

Allen Wang

Allen Wang, MD

Residency - Beth Israel Deaconess Medical Center
MD - Duke University School of Medicine
Hometown - Corning, NY

Krista Zachariah

Krista Zachariah, MD

Residency - New York Presbyterian Hospital—Weill Cornell Medicine
MD - Drexel University College of Medicine
Hometown - Doylestown, PA

Make an Appointment

(646) 962-5558

Weill Cornell Medicine
Division of Cardiology

1305 York Avenue, 8th Floor
New York, NY 10021