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

William Gustav Murphy IV

Currently registered

William Gustav Murphy IV is an attorney admitted to the New York State Bar in 2002, with a registered practice address in Tarrytown, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number4034245
Bar statusCurrently registered
Year admitted2002
Judicial departmentDepartment 2
Law schoolTemple University, Philadelphia
Practice cityTarrytown, NY
CountyWestchester
Firm / organizationMarks, O'Neill, O'Brien, Doherty & Kelly, P.C.
Office address580 White Plains Rd Ste 620, Tarrytown, NY, 10591
Phone(914) 593-7316
Next registration dueFeb 2028

About Marks, O’Neill, O’Brien, Doherty & Kelly, P.C.

Marks, O’Neill, O’Brien, Doherty & Kelly, P.C. is a law firm that presents itself as a defense litigation practice serving corporations, insurance carriers and individuals, with a track record that its website describes as spanning more than twenty-five years. The firm says it partners with clients from the private and public sectors, including corporations and self-insured entities, and offers a regional approach to litigation. Practice areas listed on its website include casualty, professional liability, toxic tort and mass tort matters, construction accident and construction defect work, employment law and municipal and public entity matters, bankruptcy and appellate advocacy, healthcare and catastrophic and excess loss, transportation and trucking, data privacy and cyber security, and workers' compensation.

Practice areas of Marks, O’Neill, O’Brien, Doherty & Kelly, P.C.:

Appeals Bankruptcy & Restructuring Construction Employment & Labor Environmental Health Care Privacy & Cybersecurity Workers' Compensation

These are the practice areas the organization describes on its website. They are not a statement about William Gustav Murphy IV’s own practice or any specialty certification.

View the Marks, O’Neill, O’Brien, Doherty & Kelly, P.C. profile and its 17 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.

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