Law Offices of Kevin T. Grennan, PLLC

Law Offices of Kevin T. Grennan, PLLC NYC and LI law firm handling personal injury, medical malpractice and nursing home negligence. Offices: Garden City and 420 Lexington Ave. Mr. Degree from St.

For twenty five years, attorney Kevin Grennan has been helping clients on Long Island and in New York City, to recover money damages for personal injuries sustained in accidents and as a result of medical negligence. We also handle civil rights, employment and commercial litigation. When you entrust your personal injury matter to us, you will deal directly with Kevin Grennan, the founding member o

f the firm, as well as our legal support staff. We pride ourselves on being accessible and responsive to our clients. For new client matters and true emergency situations, we are available 24 hours a day, 7 days a week. Because many of our clients are unable to travel to our office as a result of their catastrophic injuries, Mr. Grennan will personally travel to you or your loved one's home or hospital room for a free initial consultation. We zealously represent our clients, and, although most cases settle prior to trial, we prepare every case that we accept as if it were going to trial, from the outset. We believe that money recoveries are maximized when our adversaries know that we have exhaustively and diligently prepared our case as ready for trial. We pride ourselves on the fact that a substantial percentage of our cases are referred to us by other attorneys who feel that our expertise could better serve them and their clients. Once a case is referred to us, both the attorney and client receive our high level of responsiveness and professionalism. Grennan began his legal career working in the downtown Manhattan in-house counsel office of a major insurance carrier. In addition, before establishing his firm, he practiced for several years as an associate with a Long Island law firm specializing in both the defense and prosecution of personal injury and medical malpractice claims, and commercial and insurance litigation. Grennan received his B.A. in Economics, cm laude, from St. John's University in 1985 and received his J.D. John's University School of Law in 1995. He is a member of the following associations:

The American Association for Justice
New York State Trial Lawyers Association
New York State Academy of Trial Lawyers
Nassau County Bar Association
Suffolk County Bar Association
Omicron Delta Epsilon, International Economics Honor Society

Mr. Grennan also sits on the Plaintiff's roundtable of the Nassau County Bar Association. He is admitted to practice in all New York State Courts and in the Federal Courts for the Southern District and Eastern District of New York, as well as the Federal Second Circuit Court of Appeals. If you or a loved one has been injured and you want to know what your rights are in pursuing a case:
Contact Us for a FREE Consultation 24 Hours a Day - 7 Days a Week
516-745-5490

I'm honored to be selected for the 2026 Thomson Reuters NY Metro Super Lawyers list- our ninth consecutive year!Congratu...
04/24/2026

I'm honored to be selected for the 2026 Thomson Reuters NY Metro Super Lawyers list- our ninth consecutive year!

Congratulations Kevin T. Grennan,

You have been selected to the 2026 New York Metro Super Lawyers list!

No more than 5% of attorneys in New York Metro receive this distinction.

The use of ChatGPT and Gemini has exploded in recent months.  This article is a great reminder to never share your perso...
12/14/2025

The use of ChatGPT and Gemini has exploded in recent months. This article is a great reminder to never share your personal information with a chatbot!

Harsh Varshney has worked in privacy and Chrome AI security at Google. He's cautious about what he shares with AI chatbots to protect himself from cybercriminals. He advises using well known AI tools and treating chatbots like a public postcard.

Nice to be named a Thomson Reuters NY Metro Superlawyer again for 2025!
04/30/2025

Nice to be named a Thomson Reuters NY Metro Superlawyer again for 2025!

Another GrennanLaw seven figure personal injury verdict/settlement- $1.75 million!  Our client suffered ankle, knee and ...
04/02/2025

Another GrennanLaw seven figure personal injury verdict/settlement- $1.75 million! Our client suffered ankle, knee and back injuries in a fall while making deliveries to a supermarket loading dock, as a result of the negligence of the supermarket company. In a hotly contested trial on the issue of liability, with no offer on the table, a New York State Supreme Court Suffolk County jury found the supermarket 100% at fault for our client’s accident. The case then settled during the damages trial.

We are pleased to announce that for his outstanding work in the Courtrooms of NYC & LI, Kevin has once again been select...
10/05/2024

We are pleased to announce that for his outstanding work in the Courtrooms of NYC & LI, Kevin has once again been selected a NY Metro Superlawyer for 2024- the seventh consecutive year.

A great morning spent at Career Day with the middle schoolers at Melrose School in the Bronx!
05/17/2024

A great morning spent at Career Day with the middle schoolers at Melrose School in the Bronx!

10/14/2023

Settlement alert! Our client was driving his car on the Long Island Expressway when he was rear ended by a bus, sustaining serious neck and back injuries. After more than four years of hard fought litigation in New York State Supreme Court, Suffolk County, we are pleased to report a $1.95 million settlement in our client’s favor for his injuries and damages.

06/30/2023

Settlement alert! Another GrennanLaw 7 figure personal injury settlement. Our client was shopping for marble in connection with a home renovation project when store workers allowed a slab of marble to fall onto her foot, causing a fractured hallux (big toe) requiring two surgeries, and other serious injuries. The action was pending in New York State Supreme Court, County of Nassau. We are pleased that this week we were able to secure fair and reasonable compensation for our client’s injuries and damages in the amount of one million dollars, many times what insurance originally offered.

All E-bike owners should be aware of the dangers in improperly charging or storing them.
04/11/2023

All E-bike owners should be aware of the dangers in improperly charging or storing them.

The bike’s battery was being charged near the front door of the apartment building when the blaze ignited and quickly spread.

We are pleased to be selected for a sixth consecutive year.
03/28/2023

We are pleased to be selected for a sixth consecutive year.

Address

666 Old Country Road, Suite 555
Garden City, NY
11530

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