Atty. John N. Mastin

Atty. John N. Mastin

Mr. John N.

San Antonio San Antonio 52 yrs experience 52 year
Call (726) 240-8186 Book Appointment

Profile Summary

About John N. Mastin at a glance

John N. Mastin is a Member based in San Antonio, Texas, practicing at John N. Mastin. They have 52+ years of legal experience, licensed to practice since 1974. Their practice focuses on medical malpractice, personal injury, and product liability. Admitted to practice in Texas (1974), U.S. District Court, Western District of Texas (1976), U.S. Court of Appeals, Fifth Circuit (1979), and U.S. Tax Court (1983). Educated at South Texas College of Law (J.D., 1974) and University of Texas (B.A., 1970). Recognitions include BV Distinguished. Active member of State Bar of Texas Texas Trial Lawyers Association The Association of Trial Lawyers of America. Serands clients in San Antonio, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. John N. Mastin is a lawyer practicing personal injury law, medical malpractice law, products liability law
  • John received a B.A. degree from University of Texas in 1970, and has been licensed for 52 years
  • John practices at John N. Mastin in San Antonio, TX

Practice Areas Explained

John N. Mastin's Areas of Practice

Each practice area below reflects the types of cases John N. Mastin 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 N. Mastin is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Texas →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

John N. Mastin is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Texas →

Product Liability

John N. Mastin is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Texas →

Jurisdictional Context

Why local counsel matters in Texas

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

Looking for additional Texas attorneys? Browse all attorneys in San Antonio or all attorneys in Texas.

Frequently Asked

Common questions about John N. Mastin

Where is John N. Mastin's law office located?
John N. Mastin's law practice is located in San Antonio, Texas. The firm is John N. Mastin. You can contact the office directly through this profile page.
What practice areas does John N. Mastin handle?
John N. Mastin focuses on medical malpractice, personal injury, product liability. Each practice area listed reflects experience handling cases of that type in Texas.
How long has John N. Mastin practiced law?
John N. Mastin has 52+ years of legal experience and has been licensed since 1974.
Where did John N. Mastin go to law school?
John N. Mastin earned their education at (J.D., 1974); (B.A., 1970).
How can I contact John N. Mastin for a consultation?
You can contact John N. Mastin 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.
What awards or recognition has John N. Mastin received?
John N. Mastin's notable recognition includes: BV Distinguished.

Education

J.D.
South Texas College of Law
- 1974
B.A.
University of Texas
- 1970

Awards

BV Distinguished

Bar Admissions

Texas
Admitted: 1974
U.S. District Court, Western District of Texas
Admitted: 1976
U.S. Court of Appeals, Fifth Circuit
Admitted: 1979
U.S. Tax Court
Admitted: 1983
U.S. District Court, Northern District of Texas
Admitted: 1987

Reviews

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