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

Dennis F. Mcdermott

Currently registered

Dennis F. Mcdermott is an attorney admitted to the New York State Bar in 1983, with a registered practice address in Mineola, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number1874650
Bar statusCurrently registered
Year admitted1983
Judicial departmentDepartment 2
Law schoolSt Johns
Practice cityMineola, NY
CountyNassau
Firm / organizationNassau County District Attorney
Office address262 Old Country Rd, Mineola, NY, 11501
Phone(516) 571-3812
Next registration dueMar 2027

About Nassau County District Attorney's Office

The Nassau County District Attorney's Office is a government prosecutorial office on Long Island, New York. Its stated function is to investigate and prosecute violations of state and local criminal statutes within Nassau County. The office reports nearly 250 attorneys and a total staff above 450. It is headed by District Attorney Anne T. Donnelly, who was elected in 2021 as the 17th holder of the post.

Practice areas of Nassau County District Attorney's Office:

White Collar & Investigations

These are the practice areas the organization describes on its website. They are not a statement about Dennis F. Mcdermott’s own practice or any specialty certification.

View the Nassau County District Attorney's Office profile and its 188 registered attorneys →

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 Dennis F. Mcdermott, 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.

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