---
title: "John O'Brien | Surgery Expert Witness | Deep Research and Background Information on Experts"
meta:
  "og:description": "John Gregory O'Brien is an expert witness in Surgery. View detailed background information and comprehensive legal research data."
  "og:title": "Experts | Expert Witness Profiler | Deep Research and Background Information on Experts"
  description: "John Gregory O'Brien is an expert witness in Surgery. View detailed background information and comprehensive legal research data."
---

### **Results for: ** John Gregory O'Brien

# **John Gregory O'Brien**

Surgery

Heber City, Utah

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Expert Details

Dr. John Gregory O'Brien M.D., F.A.C.S. is a Surgery expert witness from New Jersey. He has an active medical practitioner’s license from the states of New Jersey and Utah. He is certified by the American Board of Surgery. He completed his medical degree in 1978 from the Georgetown University School of Medicine. He pursued his internship at the Naval Hospital. He also pursued his residency from the Naval Medical Center. Currently, Dr. O'Brien is Leadership Council Intermountain Healthcare and Chairman of the Trauma Committee. He is a fellow of the American College of Surgeons - ACS. He is a member of the Society of Laparoendoscopic Surgeons - SLS and Society of American Gastrointestinal and Endoscopic Surgeons - SAGES. He is may be contacted by (435) 657-4600.

**A previous Expert Challenge Study on John Gregory O'Brien revealed: **

| **Total Challenges** | **3** |
| --- | --- |
| **Direct Challenges** | **3** |
| **Indirect Challenges ** | **0** |

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[](https://ewp-blog.expertwitnessprofiler.org/wp-content/uploads/2022/11/ade73328f59a862fcc5a8e2223f9b4b2.pdf) [](https://expertwitnessprofiler.com/expert-witness/John-O-Brien/1520619/order/add?eId=1520619&pId=3)

Expert Challenge Study

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[](https://ewp-blog.expertwitnessprofiler.org/wp-content/uploads/2022/11/7b489230ad2cfbc7d3223704c4a7eb12-1.pdf) [](https://expertwitnessprofiler.com/expert-witness/John-O-Brien/1520619/order/add?eId=1520619&pId=1)