Atty. William D. Dienna

Atty. William D. Dienna

William D. Dienna is a lawyer practicing civil litigation, insurance defense, medical defense and 2 other areas of law.

Philadelphia Philadelphia 43 yrs experience 43 year
Call (844) 588-2324 Book Appointment

Profile Summary

About William D. Dienna at a glance

William D. Dienna is an Associate based in Philadelphia, Pennsylvania, practicing at Law Offices of Peter J. McNamara. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on medical malpractice, litigation, health care, insurance, and appellate. Admitted to practice in Pennsylvania (1983) and U.S. District Court, Eastern District of Pennsylvania (1984). Educated at Villanova University (J.D., 1983) and West Chester State College (B.S., 1979). Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William D. Dienna is a lawyer practicing civil litigation, insurance defense, medical defense and 2 other areas of law
  • William received a B.S. degree from West Chester State College in 1979, and has been licensed for 43 years
  • William practices at Law Offices of Peter J. McNamara in Philadelphia, PA

Practice Areas Explained

William D. Dienna's Areas of Practice

Each practice area below reflects the types of cases William D. Dienna 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.

William D. Dienna is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Pennsylvania →

Civil Litigation

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

William D. Dienna is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Health Care Law

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

William D. Dienna is one of 66,735 health care attorneys indexed nationally. Browse health care attorneys in Pennsylvania →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

William D. Dienna is one of 121,912 insurance attorneys indexed nationally. Browse insurance attorneys in Pennsylvania →

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

William D. Dienna is one of 86,319 appellate attorneys indexed nationally. Browse appellate 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 Philadelphia 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 Philadelphia or all attorneys in Pennsylvania.

Frequently Asked

Common questions about William D. Dienna

Where is William D. Dienna's law office located?
William D. Dienna's law practice is located in Philadelphia, Pennsylvania. The firm is Law Offices of Peter J. McNamara. You can contact the office directly through this profile page.
What practice areas does William D. Dienna handle?
William D. Dienna focuses on medical malpractice, litigation, health care, insurance, appellate. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has William D. Dienna practiced law?
William D. Dienna has 43+ years of legal experience and has been licensed since 1983.
Where did William D. Dienna go to law school?
William D. Dienna earned their education at (J.D., 1983); (B.S., 1979).
How can I contact William D. Dienna for a consultation?
You can contact William D. Dienna 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.
Villanova University
- 1983
B.S.
West Chester State College
- 1979

Bar Admissions

Pennsylvania
Admitted: 1983
U.S. District Court, Eastern District of Pennsylvania
Admitted: 1984

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