Pfizer COVID-19 vaccine appointments are available to our patients. Sign up for Connect today to schedule your vaccination. Continue your routine care with us by scheduling an in-person appointment or Video Visit.

Gastroenterology and Hepatology Fellows

Year 1

Steven Mathews
View Bio
Steven Mathews, M.D.
  • Undergrad: Boston University
  • MD: Stony Brook University
  • Residency: New York-Presbyterian/Weill Cornell

Hometown: Suffern, NY
Hobbies: Hiking, Lacrosse, Basketball, Snowboarding, Travel, Cooking
Clinical/Research Interests: Nutrition, Obesity, NAFLD, Microbiome, Preventive Health

Katharine Rooney
View Bio
Kate Rooney, M.D.
  • Undergrad: Williams College
  • MD: Northwestern University Feinberg School of Medicine
  • Residency: McGaw Medical Center of Northwestern University

Hometown: Bronxville, NY
Hobbies: Reading, traveling, painting
Clinical/Research Interests: Esophageal and swallowing disorders, motility disorders

Zachary Sherman
View Bio
Zachary Sherman, M.D.
  • Undergrad: University of Michigan
  • MD: Icahn School of Medicine at Mount Sinai
  • Residency: NewYork-Presbyterian/Weill Cornell

Hometown: Glenmont, NY
Hobbies: Spending time with my family, soccer, fantasy football
Clinical/Research Interests: Hepatology, Quality Improvement

Donevan Westerveld
View Bio
Donevan Westerveld, M.D.
  • Undergrad: University of Central Florida
  • MD: University of Florida
  • Residency: University of Florida

Hometown: Orlando, FL
Hobbies: Traveling, outdoors activities, and family time
Clinical/Research Interests: Advanced therapeutic endoscopy, endoscopic bariatric therapy, pancreatology

Year 2

Dr. Adam Buckholz
View Bio
Adam Buckholz, M.D.
  • Undergrad: University of North Carolina at Chapel Hill
  • MD: University of Virginia
  • Residency: NewYork-Presbyterian/Weill Cornell

Hometown: Cary, NC
Hobbies: Skiing, scuba diving, reading, trivia
Clinical/Research Interests: NAFLD, social determinants of health, liver disease and transplantation

Dr. Anthony Choi
View Bio
Anthony Choi, M.D.
  • Undergrad: Brown University
  • MD: Weill Cornell Medical College
  • Residency: NewYork-Presbyterian/Weill Cornell

Hometown: Fullerton, CA
Hobbies: traveling, cello
Clinical/Research Interests: Quality Improvement, Endoscopy technology, nutrition

Dr. Guarav Ghosh
View Bio
Gaurav Ghosh, M.D.
  • Undergrad: The University of Oklahoma
  • MD: Weill Cornell Medical College
  • Residency: NewYork-Presbyterian/Weill Cornell

Hometown: Norman, OK
Hobbies: traveling, cooking, hiking, soccer, movies
Clinical/Research Interests: Esophageal disease, motility, outcomes research

Dr. Alyson Kaplan
View Bio
Alyson Kaplan, M.D.
  • Undergrad: Princeton University
  • MD: New York University School of Medicine
  • Residency: Massachusetts General Hospital

Hometown: Syosset, NY
Hobbies: Hiking, running, indie folk music, traveling, cheap eats
Clinical/Research Interests: Hepatology, non-alcoholic fatty liver disease (NAFLD), alcohol-related liver disease, HIV and liver disease

Year 3

Tracey Martin
View Bio
Tracey Martin, M.D.
  • Undergrad: Cornell University
  • MD: Brown University
  • Residency: NYU

Hometown: New York
Hobbies: traveling, Movies
Clinical/Research Interests: Liver disease, Obesity and microbiome.

Amit Mehta
View Bio
Amit Mehta, M.D.
  • Undergrad: Cornell University
  • MD: Dartmouth Medical School
  • Residency: NewYork-Presbyterian/Weill Cornell

Hometown: Brooklyn, NY
Hobbies: Travelling, Hiking, History
Clinical/Research Interests: Obesity management, NAFLD, Obesity microbiome and Endobariatrics

Medical Research Track (MRT)

Charlie Buffie
View Bio
Charlie Gene Buffie, M.D., Ph.D.
  • MRT-PGY6
  • Undergrad: Swarthmore College
  • MD: Weill Cornell Medical College, Cornell University
  • PhD: Weill Cornell Graduate School of Medical Sciences, Cornell University / Sloan Kettering Institute (Tri-Institutional MD-PhD Program)
  • Residency: NewYork-Presbyterian/Weill Cornell

Hometown: Minneapolis, MN
Hobbies: Running, photography, technology
Clinical/Research Interests: Microbiome, mucosal immunology, metabolism

Dr. Rachel Niec
View Bio
Rachel Erin Niec, M.D.
  • MRT-PGY7
  • Undergrad: Mills College, CA
  • MD: Weill Cornell Medical College (Tri-Institutional MD-PhD Program)
  • Residency: NewYork-Presbyterian/Weill Cornell

Hometown: Bay Area, CA
Hobbies: rock climbing, kayaking, running, hiking, spending time outdoors with family
Clinical/Research Interests: IBD, Inflammation, Immunology, Immune Regulation, Microbiome

Gastroenterology and Hepatology

David E. Cohen, M.D., Ph.D., Chief

Gastroenterology and Hepatology Fellowship Program

Carl Crawford, M.D., Program Director

Catherine Lowery, Administrative Coordinator

1305 York Avenue, Room Y-426
Tel: (646) 962-4700
Fax: (646) 962-0110