Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records

William Mastrogiacomo

Currently registered

William Mastrogiacomo is an attorney admitted to the New York State Bar in 1979, with a registered practice address in Shelter Island, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number1183904
Bar statusCurrently registered
Year admitted1979
Judicial departmentDepartment 2
Law schoolFordham
Practice cityShelter Island, NY
CountySuffolk
Firm / organizationWilliam Mastrogiacomo
Office addressPo Box 453, 11 Great Circle Drive, Shelter Island, NY, 11964
Phone(917) 921-5358
Next registration dueAug 2026

Office location

Registered office address on file with the New York State Bar. Verify before visiting, as the address reflects the contact on record and may be a firm rather than a personal office.

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