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John P. O'Neil

Attorney Profile

Top Rated Personal Injury Attorney in Mayfield Heights, OH

Elk & Elk Co., Ltd.
6105 Parkland Boulevard, Suite 200
Mayfield Heights, OH 44124
Phone: 440-442-6677
Fax: 440-442-7944
Selected to Super Lawyers: 2012 - 2022
Licensed in Ohio Since: 1997
Practice Areas: Personal Injury - General: Plaintiff (70%), Personal Injury - Medical Malpractice: Plaintiff (30%)
  • Free Consultation
Attorney Profile

Attorney John P. O'Neil is admitted to practice in Ohio and Florida, and is a powerhouse of legal knowledge in the areas of medical malpractice and personal injury. He has successfully tried more than 80 jury trials in Ohio and Florida in the areas of medical malpractice, transportation, legal malpractice, premises liability and others.  Mr. O'Neil's record is reflective of his two-decade career.  He concentrates his practice in representing people who suffer catastrophic injuries.  He has successfully argued cases in state and federal courts including the 8th District Court of Appeals, Ohio Supreme Court, and the 6th Circuit Court of Appeals.

Mr. O'Neil practices with the Ohio firm of Elk & Elk Co., Ltd., located in Mayfield Heights. He received his undergraduate degree from Miami University in Oxford, Ohio and his law degree from John Marshall Law School in Chicago, Illinois.  Thereafter, in 1994, he started a successful career as a Dade County Prosecutor in Miami, Dade County, Florida.  In 1997, his career progressed to practice law in the civil arena.

Mr. O'Neil has been resposible for handling multi million dollar resolutions for numerous clients.

Practice Areas
  • 70%Personal Injury - General: Plaintiff
  • 30%Personal Injury - Medical Malpractice: Plaintiff
Focus Areas

Personal Injury - Plaintiff, Wrongful Death


11 Years Super Lawyers
  • Super Lawyers: 2012 - 2022
John O'Neil, Ohio Medical Malpractice Attorney - Jon O'Neil, an Ohio medical malpractice attorney, discusses how his background as a prosecutor and an insurance defense attorney has given him a well-rounded perspective when handling plaintiff cases. Call 1-800-ELK-OHIO.

About John P. O'Neil

First Admitted: 1994, Florida

Professional Webpage:


  • , America's Top 100 Attorneys
  • , Top 50 Cleveland Super Lawyers
  • , Top 100 Ohio Super Lawyers
  • , Ohio Super Lawyers
  • , Multi-Million Dollar Advocates Forum
  • Million Dollar Advocates Forum


  • $5 million: Loading/unloading accident in Indiana, which caused catastrophic brain injury.
  • $4.75 million: Truck crash, which caused catastrophic orthopedic injury.
  • $4.5 million: Case involving a truck striking an elderly pedestrian causing orthopedic and neurological injuries.
  • $4.25 million: Wrongful death of a 22-month-old baby struck by a passing vehicle while in a stroller.
  • $3.65 million: Truck accident where a floor mat (product defect) caused unintentional acceleration, causing severe and permanent neurologic injuries.
  • $2.3 million: Highway crash, causing significant permanent orthopedic and neurologic injury.
  • $2 million: Medical malpractice in Florida of failure to properly diagnose an abscess leading to lower extremity paralysis.
  • $1.75 million: Wrongful death of a 61-year-old Cleveland man - married with two adult children - killed in an industrial accident in Arizona.
  • $1.65 million: Personal injury of a 55-year-old male struck while working near another truck in a work zone. Our client suffered a fractured tibia/fibula.
  • $1.1 million: Intersection collision which resulted in a permanent foot drop.
  • $1,035,000 million: Shooting range accident which caused serious internal injuries.
  • $1 million: Wrongful death of a 36-year-old victim - married with four children - killed in trailer underride crash.
  • $787,500 result: Bicycle accident case that caused the death of an adult male.
  • $585,000: Negligent security case on a college campus.
  • $540,000: Wrongful death of a 26-year-old male killed in a one-car crash after leaving strip clubs. Dram shop case.

Educational Background

  • Miami University, Oxford, Ohio, B.S., 1984

Bar/Professional Activity

  • Florida, 1994
  • Board Member, Federal Bar Association - Northern District of Ohio, 2015
  • Ohio, 1997
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Office Location for John P. O'Neil

6105 Parkland Boulevard
Suite 200
Mayfield Heights, OH 44124

Phone: 440-442-6677

Fax: 440-442-7944

Last Updated: 7/27/2021

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