Atty. David O. McColloch
David has devoted his career to helping health care providers and professionals navigate some of the most challenging legal situations. He approaches every case with rigorous investigation, combining a deep, practical understanding of both legal principles and the scientific issues central to his clients’ cases.
Profile Summary
About David O. McColloch at a glance
David O. McColloch is an Associate based in King Of Prussia, Pennsylvania, practicing at Marshall Dennehey. They have 11+ years of legal experience, licensed to practice since 2015. Their practice focuses on medical malpractice. Admitted to practice in Pennsylvania (2015). Educated at University of Wisconsin Law School (J.D., 2014) and Bard College (B.A., 2009). Active member of Montgomery Bar Association. Serands clients in King Of Prussia, PA and the surrounding metropolitan area.
Want to Get Service From This Attorney?
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About
- David has devoted his career to helping health care providers and professionals navigate some of the most challenging legal situations
- He approaches every case with rigorous investigation, combining a deep, practical understanding of both legal principles and the scientific issues central to his clients’ cases
- Known for his collaborative style, David partners closely with clients from the initial notice of a potential claim through trial and appeal, providing comprehensive and strategic representation every step of the way
- David began his legal career as an attorney-examiner with the Pennsylvania Insurance Department, managing more than $200 million of litigation exposure for the Mcare Fund on behalf of physicians and hospitals around the state
- In 2018, he moved to private practice
- David is experienced in handling litigation in state and federal courts, from investigation and initial pleadings, to discovery, depositions and expert review, through to resolution
- A Pennsylvania native, David is proud to call Delaware County home
- Year joined 2025 Results Defense verdict Secured on behalf of a major Philadelphia healthcare provider Health Care Liability February 20, 2026 We obtained a defense verdict on behalf of a major Philadelphia healthcare provider after a contentious six-day trial
- After undergoing a kidney transplant, a patient suffered complications in post-operative care and died a day after the surgery
- The plaintiffs were critical of the post-operative care, claiming the physicians failed to take the patient back to the operating room in light of post-op bleeding
Practice Areas Explained
David O. McColloch's Areas of Practice
Each practice area below reflects the types of cases David O. McColloch handles, with a brief overview of what that area of law covers.
Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.
David O. McColloch is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Pennsylvania →
Jurisdictional Context
Why local counsel matters in Pennsylvania
Practicing law in Pennsylvania. Legal matters in Pennsylvania are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in King Of Prussia are typically filed in the local municipal court or the appropriate Pennsylvania state district court, depending on subject matter and amount in controversy. An attorney licensed in Pennsylvania brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Pennsylvania courts without local counsel or pro hac vice admission.
Looking for additional Pennsylvania attorneys? Browse all attorneys in King Of Prussia or all attorneys in Pennsylvania.
Frequently Asked
Common questions about David O. McColloch
Where is David O. McColloch's law office located?
What practice areas does David O. McColloch handle?
How long has David O. McColloch practiced law?
Where did David O. McColloch go to law school?
How can I contact David O. McColloch for a consultation?
Practice Areas
Education
Bar Admissions
Reviews
No reviews yet.