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Denise Nassisi, MD Email Denise Nassisi

Internal Medicine
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Mount Sinai Doctors ?
    • Positions
    • ASSOCIATE PROFESSOR | Emergency Medicine
    • ASSOCIATE PROFESSOR | Medicine, General Internal Medicine
    • Specialties
    • Internal Medicine
    • Emergency Medicine
    • Language
    • English
    • Hospital Affiliation
    • The Mount Sinai Hospital

Denise Nassisi, MD, FACEP is an Associate Professor in the Departments of Medicine and Emergency Medicine at Mount Sinai. She is currently the Associate Director of the Emergency Department (ED) at Mount Sinai, serving as the Director of ED Performance Improvement, as well as Director of the Geriatric ED and the Clinical Trials Director. Dr. Nassisi received a B.S. in biochemistry from Binghamton University and received her M.D. from SUNY Stony Brook where she was inducted into the Alpha Omega Alpha Honor Society. She trained at Jacobi Hospital and Mount Sinai Hospital and is board-certified in both Emergency Medicine and Internal Medicine. She was granted Fellowship in Mount Sinai’s Institute for Medical Education, served on the Mount Sinai School of Medicine CME committee, and has contributed to the National Board of Medical Examiners United States Medical Licensing Exam. She has precepted many students and residents in the ED and developed evidence-based clinical guidelines. She has served for many years on the Mount Sinai IRB, served as reviewer for the Empire Clinical Research Investigator Program, and has successfully completed numerous industry-sponsored clinical trials. Currently she is an investigator on the CMMS Innovations Grant: GEDI WISE Geriatric emergency department innovations in care through workforce, informatics, and structural enhancements.

Regional / National Committees / Advisory Boards:


NY ACEP Research Committee

NY County Elder Fatality Review Team



American Board of Emergency Medicine
American Board of Internal Medicine

Clinical Focus


MD, S.U.N.Y. at Stony Brook Sch. of Med

Residency, Internal Medicine
Bronx Municipal Hospital Center

Residency, Internal Medicine
Mount Sinai Hospital