Atty. John Zen Jackson
Mr. Jackson’s healthcare practice emphasizes litigated matters in judicial and administrative forums, including professional liability claims, licensure and credentialing issues with administrative agencies and health care entities, reimbursement and insurance fraud disputes.
Commercial Litigation & More Attorney · Serving Iselin, NJ
Profile Summary
About John Zen Jackson at a Glance
John Zen Jackson is a medical malpractice, business, litigation, and health care attorney based in Iselin, New Jersey, practicing at Greenbaum, Rowe, Smith & Davis LLP. Admitted to practice in New Jersey, New Jersey State Bar Association, District of Columbia, The District of Columbia Bar, and New York, United States. Educated at Seton Hall University (J.D., 1975) and Tufts University (BA, 1972). Recognitions include Best Lawyers in America — Commercial Litigation (2026), Best Lawyers in America — Litigation - Health Care (2026), and Best Lawyers in America — Medical Malpractice Law - Defendants (2026). Serves clients in Iselin, NJ and the surrounding metropolitan area.
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About John Zen Jackson
- Mr. Jackson’s healthcare practice emphasizes litigated matters in judicial and administrative forums, including professional liability claims, licensure and credentialing issues with administrative agencies and health care entities, reimbursement and insurance fraud disputes
- He is Certified by the Supreme Court of New Jersey as a Civil Trial Attorney and has extensive experience in trying jury cases to a verdict
- In addition to trying numerous individual medical liability cases for a variety of healthcare providers, Mr. Jackson was lead defense counsel for a group of New Jersey plastic surgeons sued in connection with the silicone gel breast implant litigation, and has been involved in a number of high-profile mass tort litigation programs for medical devices or healthcare products, including pedicle screws, diet drugs, and Rezulin
- Beyond trial advocacy, Mr. Jackson is an experienced appellate litigator
- He served as defense counsel in the New Jersey Supreme Court cases limiting the liability of physicians for suspected exposure to the HIV-virus, and for alleged lack of informed consent regarding abortion procedures
- Mr. Jackson has served as amicus counsel for the Medical Society of New Jersey, the American Medical Association, and the New Jersey Hospital Association in appellate matters before the New Jersey Supreme Court and Appellate Division
- He has been involved in numerous reported opinions
- Mr. Jackson has handled a variety of commercial litigation issues as well as the defense of qui tam actions under the Federal False Claims Act and insurance coverage and insurance fraud cases
- He has represented clients in professional licensure and hospital privilege disputes before state administrative bodies and hospital credentialing committees as well as judicial review through the New Jersey Supreme Court
- He has additional experience as a hearing officer for hospital privilege disputes
- Mr. Jackson is the author of over 80 published articles in medical and legal publications on a broad range of healthcare, tort liability and trial technique topics
- He has been a member of the Editorial Board of MDAdvisor, a peer-reviewed journal for the New Jersey medical community, since its inception in 2007
Practice Areas Explained
John Zen Jackson's Areas of Legal Practice
Each practice area below reflects the types of cases John Zen Jackson handles, with a practical overview of what that area of law involves and how it may apply to your situation in Iselin.
Medical Malpractice in Iselin
Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.
John Zen Jackson is one of 48,593 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in New Jersey →
Business & Corporate Law in Iselin
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
John Zen Jackson is one of 497,491 business attorneys indexed nationally. Browse business attorneys in New Jersey →
Civil Litigation in Iselin
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
John Zen Jackson is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in New Jersey →
Health Care Law in Iselin
Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.
John Zen Jackson is one of 66,157 health care attorneys indexed nationally. Browse health care attorneys in New Jersey →
Jurisdictional Context
Why Local Counsel Matters in Iselin
Practicing law in New Jersey. Legal matters in New Jersey are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Iselin are typically filed in the local municipal court or the appropriate New Jersey state district court, depending on subject matter and amount in controversy. An attorney licensed in New Jersey brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New Jersey courts without local counsel or pro hac vice admission.
Iselin Courts and Legal Process
Choosing a Iselin-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional New Jersey attorneys? Browse all attorneys in Iselin or all attorneys in New Jersey.
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Professional Profile
Why Clients in Iselin Choose John Zen Jackson
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish John Zen Jackson's practice in the field of medical malpractice, business, litigation, and health care.
Multi-State Bar Admission
Licensed in New Jersey, New Jersey State Bar Association, District of Columbia, The District of Columbia Bar, and New York, United States, John Zen Jackson can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering medical malpractice, business, and litigation, John Zen Jackson can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Iselin
A Iselin-based practice means John Zen Jackson attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues John Zen Jackson Handles in Iselin
Below is a representative sample of the types of matters John Zen Jackson has experience with under New Jersey law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact John Zen Jackson directly to discuss the specifics of your situation.
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How People Find John Zen Jackson Online
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John Zen Jackson's Practice Areas & Specializations
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