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

John Joseph Tierney

Currently registered

John Joseph Tierney is an attorney admitted to the New York State Bar in 1969, with a registered practice address in Islip, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number1189182
Bar statusCurrently registered
Year admitted1969
Judicial departmentDepartment 2
Law schoolSt. Johns University School of Law
Practice cityIslip, NY
CountySuffolk
Firm / organizationTierney & Tierney
Office address165 Islip Ave, Islip, NY, 11751
Phone(631) 928-1444
Next registration dueFeb 2028

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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