Montgomery Steele Law
“They took care of me and my son quick with getting us exams, physical therapy, and pain management.”
Best Medical Malpractice Lawyers in Ontario, CA
15 firms listed · all 15 in Ontario · 6 open 24/7 · 7 open weekends · 14 rated 4.5+
Data verified October 16, 2026
Banderas LAW
“Maribel helped me throughout the whole case and always took time to explain things to me.”
Napolin Accident Injury Lawyer
“From the Lawyers to the staff they made us feel like Family from day 1.”
Centro Legal De Accidentes
“This place is very helpful they helped me and my family put a ton I would recommend it”
Pérez Law
“Janie and Araceli were my case handlers, they were there to answer all of my questions and concerns.”
Socal Abogados Accidentes
“After working with this firm for months I can say that I am very highly satisfied with the outcome, they all worked hard and diligently to get the best one for me.”
Shown here are 15 firms listed for Ontario, CA that take medical malpractice work. What each says about its clinical caseload, consultations and fees is taken from its own website; the ratings and quoted comments come from public reviews.
Area overview: Ontario, CA
All 15 firms we list here are in Ontario itself. The firms on this page are rated from 3.8 to 5.0 across 1,159 reviews; 6 have 50 or more reviews and 14 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (97%), responsiveness (78%) and quality (75%). The topics that come up most in reviews of the firms on this page are "communication" and "results". 6 are open around the clock and 7 are open on weekends. The practice areas the firms on this page list most often on their websites are car accidents (3), wrongful death (3), dog bites (2), motorcycle accidents (2) and personal injury (2). 1 shows a license on its website and 2 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 40 years. 6 offer urgent consultations and 8 offer a free initial consultation. 2 have Spanish-speaking staff. We have a website on file for all 15 of the firms on this page; 10 publish a contact page and 9 list a public email. We count these figures across the firms on this page; hours and prices change, so confirm the details with the firm before you book a consultation.
Do medical negligence firms listed for Ontario describe their clinical experience online?
A website is listed for all 15 firms on this page. Look for the specialties they mention, whether they name the expert disciplines they work with, and how they describe the length of these cases. A site that says nothing about clinical work is worth a question on the first call.
Shaw 3 Law Firm
“He isn't in it for the money as if he does not know something he will tell you and do the research to get you the answer such as he did with me.”
Valiant Law
“Very good lawyers, the time my case lasted they kept me informed of everything and when I had any questions or concerns they always answered my calls and if they couldn't answer me at the time they called me back.”
Amicus Legal Group
“They respond quickly and Attorney John-paul Serrao, always gave me the best advice, was there if and when I needed him and responded quickly to my calls or texts.”
The Baum Injury Law Group
“He was so easy to get in contact with at all times, which was a big plus for me because this was my first accident and I was completely clueless.”
Law Offices of Smith & Garfunkel
“Best attorneys for fighting for your worker's comp claims!”
Law Offices of Forrest F. Wolfe
“He guided me on the best way to handle my will, so that my estate would not be contested by an estranged sibling.”
Sexual Harassment Lawyer- Employment Attorney
“One of the most Honest, Knowledgeable lawyers out there !!”
Davis Grass Goldstein & Finlay
McCune Law Group
“Thank you everyone for working so hard with my essure case.”
Why these companies made our list
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