Johnny Chihwei Ko

28 years of practiceLicensed in New YorkMcCormack, Mattei & Holler PC, Garden City

28 years in practice
First admitted in 1998
  1. 1998 Admitted, New York

Overview

Johnny Chihwei Ko is an attorney admitted in New York (since 1998), based in Garden City, NY.

This profile is built from public bar records and shows only what those records contain. Johnny has not written or endorsed anything on this page.

Jurisdictions admitted

JurisdictionAdmittedBar numberStatus
New York1998#2880821Active

Education

  • St John UniversityLaw school, per the bar record

Contact and offices

McCormack, Mattei & Holler PC

1035 Stewart Ave Fl S
Garden City, NY 11530

The address and number above come from the attorney's public bar registration, which can lag a recent move. Confirm before visiting.

Sources for this profile: the New York State attorney registration file. License status can change; check the bar's own record for the current status before hiring. Updated July 12, 2026.