Private company

NYC Surgical Associates

NYC Surgical Associates (NYCSA), is one of the largest multi-specialty surgical practices in the United States. Based in New York, the company consists of seven sites founded by David Greuner and Adam Tonis.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

NYC Surgical Associates (NYCSA), is one of the largest multi-specialty surgical practices in the United States. Based in New York, the company consists of seven sites founded by David Greuner and Adam Tonis.2

The story

Founded by David Greuner.1

Leadership

Who has led NYC Surgical Associates, and when. Pick a name to see everywhere that person has worked.

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2