Overview
The Supreme Court generally hears cases that are outside the authority of the lower courts, such as: civil matters involving higher dollar amounts; divorce, separation, and annulment proceedings; and criminal prosecutions of felonies.
Outside New York City, Supreme Courts hear civil matters while the County Courts hear criminal matters.
Locations
The Suffolk County Supreme Court is located in Riverhead and Central Islip. While Matrimonial and Guardianship proceedings take place predominately in our Central Islip location, all other civil matters are heard in Riverhead.
Hon. Alan D. Oshrin Supreme Court Building
Suffolk County Supreme Court
1 Court Street
Riverhead, NY 11901
United States
Monday - Friday, 9am to 5pm.
Closed on state holidays.
Arthur M. Cromarty Court Complex
Arthur M. Cromarty Criminal Court Complex
210 Center Drive
Riverhead, NY 11901
United States
John P. Cohalan Jr. Court Complex
Hon. Marquette L. Floyd Supreme Court Building
Suffolk County District Court Clerk's Office - First District Criminal
400 Carleton Avenue
Central Islip, NY 11722
United States
Administration
Hon. Thomas F. Whelan
(Matrimonial Parts)
Hon. Cheryl A. Joseph
Robert Serva
631-852-2334
631-740-3850