The Northern Manhattan Study (NOMAS) is a research study of stroke and stroke risk factors among the multi-ethnic community of Northern Manhattan, New York.

The study is a collaboration between the Department of Neurology at University of Miami and the Neurological Institute at Columbia University.

NOMAS is a NINDS-funded study of the population of Washington Heights in Northern Manhattan. The ongoing study, which began in 1990, is now a collaboration between the Department of Neurology at University of Miami and the Neurological Institute at Columbia University. The study’s interdisciplinary team of doctors and researchers has enrolled over 4,400 people from the community, some of whom have suffered a stroke or related neurological diseases (Sacco et al. 2004).