J. Mark Gruber | KnowJudges

## Judicial assignments
[Tonawanda Town Court](/kyj/court/ny/tonawanda-town-court-erie-ny)Accessible MagistrateOfficial accessible-magistrate list identifies this court affiliation; it does not certify a complete resident bench.
Source checked October 15, 2026. [Roster source](https://webfiles.nycourts.gov/public/2026-05/8jd-rta-accessible-magsitrate-list-by-county_4.pdf)
These published assignments do not certify a complete bench.

## Biography

### Professional career

- shareholder in the Firm of Roach, Brown, McCarthy & Gruber, P.C. He has 30 years experience as a litigator and trial lawyer defending healthcare providers in complex medical malpractice litigation

### Education


### Additional information