Atty. John C. Henninger

Atty. John C. Henninger

John C. Henninger is a lawyer practicing civil practice, trial practice, medical malpractice.

Mineola Mineola 37 yrs experience 37 year
Call (363) 205-1525 Book Appointment

Profile Summary

About John C. Henninger at a glance

John C. Henninger is a Member based in Mineola, New York, practicing at Geisler, Henninger & Fitzmaurice LLP. They have 37+ years of legal experience, licensed to practice since 1989. Their practice focuses on medical malpractice and litigation. Admitted to practice in New York (1989), U.S. District Court, Southern District of New York (1990), and U.S. District Court, Eastern District of New York (1990). Educated at St. John's University (J.D., 1989) and New York University (B.A., 1986). Active member of New York State Trial Lawyers Association American Trial Lawyers Association. Serands clients in Mineola, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John C. Henninger is a lawyer practicing civil practice, trial practice, medical malpractice
  • John received a B.A. degree from New York University in 1986, and has been licensed for 37 years
  • John practices at Geisler, Henninger & Fitzmaurice LLP in Mineola, NY

Practice Areas Explained

John C. Henninger's Areas of Practice

Each practice area below reflects the types of cases John C. Henninger handles, with a brief overview of what that area of law covers.

Medical Malpractice

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

John C. Henninger is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in New York →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John C. Henninger is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Mineola are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York 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 New York courts without local counsel or pro hac vice admission.

Looking for additional New York attorneys? Browse all attorneys in Mineola or all attorneys in New York.

Frequently Asked

Common questions about John C. Henninger

Where is John C. Henninger's law office located?
John C. Henninger's law practice is located in Mineola, New York. The firm is Geisler, Henninger & Fitzmaurice LLP. You can contact the office directly through this profile page.
What practice areas does John C. Henninger handle?
John C. Henninger focuses on medical malpractice, litigation. Each practice area listed reflects experience handling cases of that type in New York.
How long has John C. Henninger practiced law?
John C. Henninger has 37+ years of legal experience and has been licensed since 1989.
Where did John C. Henninger go to law school?
John C. Henninger earned their education at (J.D., 1989); (B.A., 1986).
How can I contact John C. Henninger for a consultation?
You can contact John C. Henninger directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
St. John's University
- 1989
B.A.
New York University
- 1986

Bar Admissions

New York
Admitted: 1989
U.S. District Court, Southern District of New York
Admitted: 1990
U.S. District Court, Eastern District of New York
Admitted: 1990

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