At Mattiacci Law, our Philadelphia personal injury lawyers strive for:

24/7 Service

Whether it’s one in the afternoon or one in the morning, you can expect to connect with a member of the Mattiacci Law team. Winning is important, but keeping you up-to-date on your case is also one of our core beliefs.

Cost-Free Until We Win

We are so confident in our ability to achieve a settlement in your personal injury case, we practice on a contingency basis. That means that you don’t pay us a dime until we win your case.

Results Driven

Our results speak for themselves. We pride ourselves on the results we obtain for our clients.

You can place your trust in us.

Just shy of 2 years ago, I was in a terrible motorcycle accident that left me in a coma for 5-6 days. I suffered countless life-threatening & serious injuries, and it's truly a miracle that I survived. From the moment I hired Mattiacci Law LLC to represent me, John, his paralegal Kristin and the entire team worked day and night to fight for me, when I didn't have the strength or ability to fight for myself. Now, just one month shy of the 2 year anniversary of my accident, and the legal battle is over! I am finally able to focus all of my attention and remaining strength on my health and recovery, all thanks to Mattiacci Law LLC!!To John, Kristin and the rest of the team, Thank you so much for all that you have done for me. This was my first time dealing with something of this nature, and I could not have been more impressed and grateful. Thank you.If you are in need of a lawyer and firm to represent you, and you haven't considered Mattiacci Law LLC yet, it's time you should. John and the entire team will work endlessly to ensure that the battle is not over until it's won! I am able to finally live peacefully again, with a smile on my face because of Mattiacci Law LLC!
Dalton O'Connor
Dalton O'Connor
17:06 17 Aug 23
I couldn't be happier with my experience with Mattiacci Law. John was amazing with handholding us through the process during an extremely stressful time for our family. He and Kristin treated us with compassion and respect. I appreciated the robust discussions on next steps and that we really felt like they were partnering with us on every decisions. Personal injury cases can be very labor intensive with regards to gathering documentation and working with insurance companies etc and I really felt like Kristin and John relieved that load from us so we could focus on the things we needed to get healthy. The expertise we received was invaluable and I always felt like they delivered information in a way that I could understand easily. I will always be so grateful for the support and would recommend Mattiacci Law to any of my family or in friends because I know they would be in great hands.
Kelsey Cirka
Kelsey Cirka
17:44 08 Aug 23
Everyone at Mattiacci law was amazing! Very helpful, great communication, an all around great experience!
cheryl Hall
cheryl Hall
00:25 15 Jun 23
Bill and Kristen helped me through my whole incident. They were very helpful and understanding. They kept me informed on everything! They are such great people! It was a long process but they were there every step of the way! And I can not thank them enough for everything they have done for me!
Gabrielle Coxe
Gabrielle Coxe
18:13 13 Apr 23
John and Kristen are kind, compassionate people who get the job done! Thanks so much for your help in getting me the settlement to which I was entitled.
Jeff White
Jeff White
12:55 03 Mar 23
almost two years going back and forth, and they still worked hard for me. I'd recommend them to anyone who wants quality people helping them!
Julian Meisner
Julian Meisner
18:54 02 Mar 23
nicole flaherty
nicole flaherty
15:06 09 Feb 23
Two great lawyers that helped me out from start to finish, including with my workers’ compensation and social security disability cases. John & Bill were always available whenever I had a question and the office staff was always very nice!
pat ok
pat ok
18:20 13 Jul 22
Bill was a big help to me during my case. He came into it in the middle and helped me. He was always professional and explained everything to me. He is very knowledgeable. I never felt rushed. I would highly recommend Bill.
Cindy Jacobson
Cindy Jacobson
13:25 20 May 22
Was a great lawyer he helped me when I needed it the most he went all out his way for me and I really appreciate it thank you very much💯💯
Lurietta Falcon-mundoz
Lurietta Falcon-mundoz
14:23 02 May 22
See All Testimonials

Our Approach

We don’t settle for anything less than the best

Most cases don’t make it to trial, but we prepare for it regardless. Insurance companies can use many tactics in an attempt to cheat you out of the settlement you deserve, so sometimes, escalating to trial is necessary. In the event of a trial, our personal injury attorneys know how to handle the insurance companies and rigorously defend your rights.

Meet Managing Attorney John Mattiacci

For more than 16 years, I have represented clients who were paralyzed, brain-damaged, permanently injured, or killed. I pride myself and am honored by the many opportunities I have had to help families pick up the broken pieces and put their lives back together after devastating injuries, accidents or death.

Service is at the heart of my Philadelphia personal injury practice. When you work with me, you are family, and I fight for you like you are one of my own. Not all law firms offer the dedicated attention that myself and my associates can, and we wouldn’t have it any other way.

Learn More About John


Read through our blog for legal articles and firm news.

  • Philadelphia Personal Injury Settlement Offer: What You Need to Know

    June 15, 2023 | Read Time: 7 minutes

    Philadelphia Personal Injury Settlement Offer: What You Need to Know The vast majority of personal injury cases in Pennsylvania settle before trial. Insurance companies defend most personal injury claims and make settlement decisions based on their financial interests. Because trials cost insurers vast sums of money, they typically conclude that settling out of court best...

  • Maximizing Your Personal Injury Compensation in Philadelphia

    June 1, 2023 | Read Time: 7 minutes

    Maximizing Your Personal Injury Compensation in Philadelphia   The plaintiff bears the burden of proof in a personal injury claim. Therefore, collecting evidence to establish the defendant’s liability and prove harm is essential. To maximize your personal injury claim, consider the following:   Seek medical attention right away Gather all relevant evidence Keep copies of...

  • How to Win Your Personal Injury Case in Philadelphia

    May 15, 2023 | Read Time: 6 minutes

    Winning a personal injury claim requires plaintiffs to prove that the defendant(s) breached a legally recognized duty of care and harmed them in the process. Accordingly, personal injury attorneys build cases by gathering evidence to prove the defendant(s) negligence and the damages that resulted. Typically, the plaintiff’s attorneys compile this evidence during the discovery phase...

Why Choose Mattiacci Law? We Know Philadelphia.

Philadelphia is the fifth-largest city in the country by population. Over 1.5 million people live in Philadelphia and even more work in the city. With such a large city and so many people, accidents can and will happen. Unfortunately, when these accidents happen, the responsible parties may not want to stand up and do the right thing for accident victims. That's why handling accident cases in Philadelphia is what John Mattiacci has been doing for more than 13 years.

John has been trying personal injury trials in Philadelphia since the start of his legal career. John Mattiacci was an award-winning trial advocacy student at Temple Law before beginning his legal career in Philadelphia. The overwhelming majority of the cases John Mattiacci has handled over the years have been litigated in Philadelphia. Our firm has intimate knowledge of the legal system in Philly, from arbitration cases all the way up to complex trial cases. This experience has helped our winning injury law firm to maximize our clients’ recoveries.

The Personal Attention You Deserve

Clients first. That is a core focus at the Philadelphia personal injury firm of Mattiacci Law. We do everything we can to give our clients the attention they expect, demand and deserve. This means we do everything from making house calls or hospital visits or routinely calling clients to keep them updated on developments in their cases. We encourage our clients to contact us with questions. John Mattiacci and everyone at the firm will take the time to discuss each case, to answer clients’ questions, and to guide our clients through the legal process.

People hire an attorney to fight their legal battles. At Mattiacci Law, as dedicated Philadelphia personal injury attorneys, we try to do more than that. We strive to make our clients’ lives easier any way we can. We do this by communicating with our clients, by listening to them, and by keeping them updated and intimately involved in their cases. When our clients need help, advice or support, we are there for them.

We Get Results

John Mattiacci has successfully handled serious personal injury cases in Philadelphia for many years. Over those years, John has helped recover multi-million dollar recoveries in numerous cases in state and federal court cases. As a result, John is a member of the Multi-Million Dollar Advocates and Million Dollar Advocates Forum. Membership in this group is limited to attorneys who have recovered million and multi-million dollar verdicts and settlements on behalf of their clients. Less than 1% of all attorneys in the United States are members. We are proud of our track record of multi-million dollar and significant six-figure recoveries for our clients. Put our experience to work for you.

No Recovery, No Fee

We offer a contingency fee for personal injury cases. If we do not obtain a settlement or verdict then you do not owe us anything. We never charge a retainer and you will not pay a single penny until and unless we recover money in the case. That’s a guarantee.

If you or a family member have been injured, contact Mattiacci Law today for a free consultation. We will provide a free case review and evaluate any potential claims you have. Call today.