New York attorney · Reg. #3019577

Colleen Creegan McMahon

Registered (registry: Currently registered)

Current employer

Northwell Health, Inc · New Hyde Park, NY · since at least September 2026

Admission

Admitted 2000, Second Department · St. John's University School of Law

Employment history

• Northwell Health, Inc · New Hyde Park, NY · current

Compiled from NYS Office of Court Administration registration records, published NY Appellate Division decisions, and SEC orders against attorneys; current as of October 2026. Not an official record; verify with the NY Courts Attorney Search.