Our Team

Attending Physicians, Columbia University Medical Center

Jean C. Emond, MD
Vice Chair and Chief of Transplantation
Phone: 212.305.9691

Tomoaki Kato, MD
Chief, Division of Abdominal Organ Transplantation
Surgical Director, Liver and Gastrointestinal Transplantation
Phone: 212.305.5101
Fax: 212.305.5124

Robert S. Brown, Jr., MD, MPH
Director, Center for Liver Disease and Transplantation
Phone: 212.305.0914
Fax: 212.305.4343

Lorna M. Dove, MD, MPH
Medical Director, Adult Liver Transplantation
Phone: 212.305.0914
Fax: 212.305.4343

Alyson Fox, MD
Assistant Professor of Medicine
Phone: 212.305.0914
Fax: 212.305.9139

James V. Guarrera, MD
Surgical Director, Adult Liver Transplantation
Phone: 212.305.4199
Fax: 212.305.8710

Steven J. Lobritto, MD
Pediatric Medical Director
Phone: 212.305.3000
Fax: 212.342.2996

Mercedes Martinez, MD
Director of Pediatric Intestinal Transplantation
Phone: 212.305.3000
Fax: 212.342.2996

Benjamin Samstein, MD
Surgical Director, Living Donor Liver Transplant Program
Director, Transplant Surgery Fellowship
Phone: 212.305.4199

Rodrigo Sandoval, MD
Attending Surgeon
Phone: 212.305.8932

Abby Siegel, MD
Attending Physician
Phone: 212.305.0914

Elizabeth Verna, MD, MS
Attending Physician
Phone: 212.305.0914

Jennifer Vittorio, MD
Pediatric Hepatologist
Phone: 212.305.3000
Fax: 212.342.2996

Julia Wattacheril, MD, MPH
Attending Physician
Phone: 212.305.0914

Attending Physicians, Weill Cornell Medical Center

Robert S. Brown, Jr., MD, MPH
Phone: 646.962.5483

Alyson Fox, MD
Assistant Professor of Medicine
Phone: 646.962.5483

Arun Jesudian, MD
646.962.5483

Attending Psychiatrist

Silvia Hafliger, MD
Phone: 212.305.0914

Outreach Coordinators

Richard Ozimek
Outreach Coordinator
Phone: 212.305.0462

Practice Manager

Yalitza Santos
Practice Manager
Phone: 212.305.0914

Social Workers

Aimee Muth, LCSW
Phone: 212.305.1884

Amanda Scott, LCSW
Phone: 212.305.7438

Laura Hagadone, LMSW
Phone: 212.305.3081

Maura Hagan, LMSW
Phone: 212.305.0916

Samantha Bennahum, LCSW
Phone: 646.962.5337

Jillian McGuire, LMSW
Pediatric Social Worker
Phone: 212.342.8505

Pathology

Jay Leftkowitch, MD
Phone: 212.305.7381
Fax: 212.305.6719

Nurse Practitioners

Clarissa Barbon-Vogel
Pediatric Transplant Coordinator

Damaris Carriero, NP
Clinical Coordinator
Phone: 212.305.0914

Lori Cogan, DNP
Senior Transplant Coordinator
Phone: 212.305.0914

Margie Fernandez-Sloves, DNP
Senior Transplant Coordinator
Phone: 212.305.0914

Judith Gang, NP
Transplant Coordinator
Phone: 212.305.0914

Nicole Golden, NP
Transplant Coordinator
Phone: 212.305.0914

Patricia Harren, DNP
Director of Clinical Operations, Center for Liver Disease and Transplantation
Phone: 212.305.0914

Anna Rundle, NP
Pediatric Transplant Coordinator
Phone: 212.305.3000

Monica Velasco, NP
Clinical Coordinator, Intestinal Transplant
Phone: 212.305.0914

Karen Weisz, NP
Transplant Coordinator
Phone: 212.305.0914

Living Donor Advocate Team

The Living Donor Advocate Team is an independent team of specialists dedicated solely to the well being of the liver donor. This team educates potential donors about all aspects of the donation process including medical, financial, psychosocial, and more. The team acts as an advocate on the donor’s behalf to ensure that he or she makes informed decisions and fully understands his or her options at every stage, including the right to opt out at any time. The donor advocate team works with liver donors beginning at the evaluation process and continues through donation, the post-operative period, and discharge.

Living Donor Advocate Team:

Darby Santamour
Living Donor Specialist

Dr. Benjamin Samstein
Surgical Director

Dr. Silvia Hafliger
Psychiatrist

Anne Lawler
Social Worker

Marcia Levy
Social Worker

Dr. Douglass Marratta
Internist/Independent Doctor

Stella Goudie
Transplant Coordinator

Jennifer Fojas
Financial Coordinator

Research Study Coordinator

Theresa Lukose, PharmD
Director of Clinical Transplant Research
Phone: 212.305.6758

Billing Coordinators

Annabelle Branford
Billing Manager
Phone: 212.305.4146

Joshua Wilson
Compliance Officer
Phone: 212.305.9966

Administrative Assistants

Linda Higgins
Phone: 212.305.0662

Mary Sheehan
Administrative Assistant to the Surgical Director
Phone: 212.305.3000