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

Joanmarie Frances Koster

Currently registered

Joanmarie Frances Koster is an attorney admitted to the New York State Bar in 1988, with a registered practice address in Stony Brook, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number2171684
Bar statusCurrently registered
Year admitted1988
Judicial departmentDepartment 2
Law schoolWashington College of Law
Practice cityStony Brook, NY
CountySuffolk
Firm / organizationJoanmarie F. Koster, Esq.
Office address95 Christian Ave, Stony Brook, NY, 11790
Phone(631) 751-0415
Next registration dueJul 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.

Verify this record

Bar status can change at any time. For the authoritative, real-time status of Joanmarie Frances Koster, confirm directly through the official New York Attorney Search using the registration number above. This record is republished from public New York State data and is provided for reference only — it is not legal advice and not an endorsement.

Other attorneys in Stony Brook

See all attorneys in Stony Brook, NY →

Other graduates of Washington College of Law

See all graduates of this school →

Helpful resources

Created by SeoFune