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

Derek Piersiak

Currently registered

Derek Piersiak is an attorney admitted to the New York State Bar in 2019, with a registered practice address in Middle Village, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number5651567
Bar statusCurrently registered
Year admitted2019
Judicial departmentDepartment 2
Law schoolSt. Johns University School of Law
Practice cityMiddle Village, NY
CountyQueens
Firm / organizationLaw Offices Of Mark L. Cortegiano, Esq.
Office address6512 69Th Pl, Middle Village, NY, 11379
Phone(781) 626-3838
Next registration dueNov 2027

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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