Philadelphia Personal Injury Lawyer
Philly's Favorite Personal Injury Firm. Free consultation. No fee unless we recover for you.
- Available 24/7
- No Upfront Fees
- Serving Philadelphia & Surrounding Counties
Get the PIL
A personal injury firm from Philadelphia, for Philadelphia.
Patterson Injury Lawyers, known around the city as the PIL, is a personal injury law firm serving Philadelphia and the surrounding counties. We do one thing: help people who were hurt because someone else was careless.
The firm is led by Derek M. Patterson, who was born and raised in West Philadelphia and has worked on both sides of injury claims, for plaintiff firms and for an insurance defense firm. He knows how insurers think, and he uses that knowledge for the people they would rather not pay.
We are a client-centric firm. You get straight answers in plain English, a phone line that is answered 24/7 and no upfront fees. We are not paid unless we recover for you. When you are hurt and the adjusters start calling, you need someone to take it from here. Get the PIL.
What we handle
Personal injury is all we do. Choose the situation closest to yours.

Car Accidents
Crashes on I-76, I-95, Roosevelt Boulevard and city streets. We deal with the insurers and explain how limited tort or full tort affects your claim.
Learn more about Car Accidents
Truck Accidents
Tractor-trailers, box trucks and delivery vehicles. We move quickly to preserve logs and black-box data and identify every party responsible.
Learn more about Truck Accidents
Motorcycle Accidents
Riders get blamed first. We answer the bias with evidence and pursue the driver who failed to see you, helmet or no helmet.
Learn more about Motorcycle Accidents
Pedestrian Accidents
Crosswalk and intersection crashes in a city built for walking. We find the coverage that applies and hold careless drivers accountable.
Learn more about Pedestrian Accidents
Slip & Fall
Wet floors, icy sidewalks, broken stairs, poor lighting and negligent security. Property owners have a duty to keep their premises reasonably safe.
Learn more about Slip & Fall
Dog Bite
Bites, facial injuries and scarring, often to children. We deal with the owner's insurer and document the full cost of treatment.
Learn more about Dog Bite
Workplace Injury
Construction, warehouse and on-the-road injuries. We explain workers' compensation and look for third parties who may also be responsible.
Learn more about Workplace Injury
Wrongful Death
Compassionate help for families who have lost someone to another's carelessness. We answer your questions at your pace, with no pressure.
Learn more about Wrongful Death
A Comprehensive Approach to Compensation
A fair result does not happen by accident. It comes from doing three things well.
We investigate thoroughly
We collect the police reports, photos, video, witness statements and medical records that show what happened and what it has cost you.
We handle the insurance companies
Adjusters are trained to pay as little as they can. We take over the calls, the paperwork and the negotiation so you can focus on healing.
We pursue the case until you are compensated
We advocate for our clients' rights and will not hesitate to take legal action until they receive the compensation they deserve.
Meet Derek M. Patterson
Attorney and CEO. Born and raised in West Philadelphia.
Derek was born and raised in West Philadelphia, where his family taught him to strive for excellence in everything he does. Inspired by his grandfather, he set out to become a trial attorney.
He has worked at several highly regarded plaintiff firms in Philadelphia and at a respected insurance defense firm, so he understands how both sides approach a claim. Today he leads Patterson Injury Lawyers with a simple philosophy: the client comes first.
How it works
Four steps, and you can start the first one right now.
- Step 1
Free Consultation
Call 24/7 or send us a message. We listen, answer your questions and tell you whether we think you have a case.
- Step 2
We Investigate & Build Your Case
We gather the evidence, the records and the insurance information, and document what the injury has cost you.
- Step 3
We Negotiate / Litigate
We deal with the insurers and negotiate for you. If they will not be fair, we take the case to court.
- Step 4
You Get Paid
Your compensation is what we are working toward. There is no fee unless we recover for you.
What to do after an accident
The first hours matter. These five steps protect your health and your claim.
- Step 1
Collect information from everyone involved
Driver's license, insurance and contact details for every party, plus names of witnesses.
- Step 2
Photograph the scene
The vehicles, the road, the surroundings and anything else that shows how it happened.
- Step 3
In a slip and fall, photograph the hazard
Capture the dangerous condition that caused the fall before it is cleaned up or repaired.
- Step 4
Get medical attention right away
Even if you feel okay. Some injuries take hours or days to show.
- Step 5
Call Patterson Injury Lawyers
We are available 24/7 at (215) 383-9959 to help you work out what comes next.
Areas we serve
Based in Center City, serving Philadelphia and the surrounding counties.
Philadelphia
Our office is at 1650 Market Street in Center City. We represent clients in every neighborhood, from West Philadelphia to the Northeast.
Personal injury lawyer in PhiladelphiaMontgomery County
Norristown, King of Prussia, Conshohocken, Cheltenham and the communities in between.
Personal injury lawyer in Montgomery CountyDelaware County
Upper Darby, Chester, Media and towns throughout Delco.
Personal injury lawyer in Delaware County
Also serving: Center City, West Philadelphia, North Philadelphia, South Philadelphia, Northeast Philadelphia, Germantown, Upper Darby, Chester, Media, Norristown, King of Prussia, Conshohocken, Cheltenham, Bensalem, Levittown, Doylestown, West Chester and nearby communities.
Frequently asked questions
The five questions we hear most.
The quickest way to find out is to call us for a free consultation and speak with an attorney. We will ask what happened, how you were hurt and what insurance is involved, then tell you plainly whether we think you have a claim. Call (215) 383-9959 any time.
There are no upfront fees or out-of-pocket costs. We do not get paid unless we recover for you.
It depends on your injuries, your treatment, how the accident happened and the insurance available, so no honest lawyer can put a number on it in a first phone call. We are available 24/7 to help you evaluate your case and explain what goes into its value.
Get information from everyone involved, including driver's license, insurance and contact details. Take pictures of the scene. If you slipped and fell, photograph the dangerous condition that caused the fall. Seek medical attention right away. Then call Patterson Injury Lawyers at (215) 383-9959.
Every case moves on its own timeline. It depends on how long your medical treatment takes, how the insurance company responds and whether a lawsuit is needed. We cannot promise a specific date, but we work to move your case forward efficiently and keep you updated along the way.
Injured? Don't wait.
Call (215) 383-9959, 24/7. The consultation is free, and there is no fee unless we recover for you.

