Current Fellows

Fourth-Year Fellow

  • Jenny Gartshteyn, MD

    Dr. Jenny Gartshteyn was born in Kharkov, Ukraine but spent most of her adult life in NYC. She completed her medical training at the New York University School of Medicine. While working as a hospitalist several years later, she discovered her passion for rheumatology - she is now a rheumatology fellow at Columbia University Medical Center. During her free time, she enjoys theater, historical fiction, and hiking.

    Jenny Gartshteyn, MD

Third-Year Fellow

  • Elizabeth Park, MD

    Dr. Elizabeth (Liz) Park was born and raised in Seoul, South Korea, until she moved to the US at the age of nine. She completed a seven-year combined BA/MD program at Boston University and her internal medicine residency at New York-Presbyterian/Cornell, where she trained in the primary care track and fell in love with Rheumatology after rotating through the Hospital for Special Surgery.

    She is interested in a clinical research career focusing on cardiovascular outcomes in Rheumatoid Arthritis patients, particularly heart failure and myocarditis. Her other clinical interests disparities in rheumatologic care as well as global Rheumatology.

    When not working she enjoys exploring all the culture NYC has to offer!

    Elizabeth Park, MD

Second-Year Fellows

  • Michael Allen, MD

    Dr. Michael Allen was born and raised in Binghamton, New York. He received his bachelor's degree in biology from The College of Saint Rose in Albany, New York before attending the Sackler School of Medicine in Tel Aviv, Israel. He completed his internal medicine residency at Mount Sinai Hospital prior to becoming a rheumatology fellow at Columbia.

    His interests within rheumatology include connective tissue disease related ILD and expanding/improving care in resource poor settings. Outside of medicine, he enjoys spending time with family and playing golf.

  • Amanda Nussdorf, MD

    Dr. Amanda Nussdorf was born and raised on Long Island, New York. She received her undergraduate degree in exercise science at The University of Delaware and attended medical school at the State University of New York at Downstate Medical Center. She completed her internal medicine residency training at New York-Presbyterian/Columbia University Medical Center and is grateful and excited to be staying as a Rheumatology fellow.

    Some of Amanda's interests outside of medicine include going to museums and art exhibits, playing golf, traveling, and trying new restaurants.

  • Nancyanne Schmidt, MD

    Dr. Nancyanne Schmidt was born and raised in New York City. She received her undergraduate degree in Public Health from The Johns Hopkins University and Master of Biomedical Science degree from Rutgers University, prior to completing a research fellowship at the National Institutes of Health. She attended medical school at Stony Brook University and completed her internal medicine residency at NYU Langone Medical Center.

    Dr. Schmidt’s research interests include global health, systemic lupus erythematosus and cardiopulmonary manifestations of rheumatologic diseases.

    Outside of work, she enjoys yoga, travel and reading. She is excited to spend the next few years at Columbia and continue exploring NYC! 

First-Year Fellows

  • Maddalena Allegretta, MD

    Dr. Maddalena Allegretta was born and raised in Wood-Ridge, New Jersey. She received her undergraduate degree from Seton Hall University and masters degree from Columbia University, before attending Rutgers University-New Jersey Medical School. She completed her residency at Mount Sinai Hospital prior to returning to Columbia as a rheumatology fellow.

    Dr. Allegretta’s interests within rheumatology include Systemic Sclerosis.

    Outside of rheumatology her interests include traveling, exploring NYC and spending time with family/friends.

  • Dahlia Hassan, MD

    Dr. Dahlia Hassan is from Long Island, New York. She graduated from Columbia University with a Bachelor's degree in Neuroscience and Behavior. She went on to attend the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, and returned to New York City where she completed her Internal Medicine residency at Mount Sinai Hospital. Dr. Hassan has an interest in Medical Education and conducted research on medical trainee burnout and depression during residency.

    Outside of work, she enjoys playing the cello, exploring New York City by foot, and trying new restaurants.

  • Paula Song, MD

    Dr. Paula Song was born in Charlotte, North Carolina, but was mostly raised in Atlanta, Georgia and New York City. She went out west for college at the University of California, Berkeley. After spending time back at home to attend the Emory University School of Medicine, she returned to the Bay Area/Northern California for internal medicine residency at Santa Clara Valley Medical Center.

    Dr. Song’s academic interests include complex systemic disorders like scleroderma and vasculitis. She is also interested in health disparities in urban communities. Outside of medicine, she enjoys hiking, studying/working at cafes, and pottery.