San Antonio (210) 342-5555
Austin (512) 329-6666
Houston (210) 342-5555
McAllen (956) 630-3080
Attorney Profile - Thornton, Biechlin, Reynolds & Guerra Law Firm

Attorney Profile

Michael H. Wallis

Michael H. Wallis

Direct: (210) 581-0294
Fax: (210) 525-0666
100 N.E. Loop 410 Suite 500
San Antonio, Texas 78216

Michael Wallis is a Member in the San Antonio office and head of the firm’s Health Law Section. His practice includes medical malpractice defense and labor and employment law. Mr. Wallis regularly represents nurses, physicians, hospitals, and employers in various civil and federal courts throughout Texas. Reported cases include Texas Laurel Ridge Hospital, L.P. d/b/a Laurel Ridge Treatment Center v. Almazan, 374 S.W.3d 601 (Tex. App. – San Antonio 2012, no pet.); and Matosky v. Manning, M.D., 428 Fed. Appx. 293 (5th Cir. 2011).


South Texas College of Law, Houston, J.D., 2001; Loyola of New Orleans, B.A., 1996


Mr. Wallis is admitted to practice law in the State of Texas, the United States District Court for the Eastern, Western, Northern and Southern Districts of Texas, the Fifth Circuit Court of Appeals, and the Supreme Court of the United States.


Mr. Wallis is a member of the San Antonio Bar Association, the Texas Bar Foundation, the San Antonio Bar Foundation, the National Order of Barristers and the William S. Sessions American Inn of Court.


Since 2014, Mr. Wallis has received recognition as a Texas Super Lawyer in the practice area of medical malpractice defense as published in Texas Monthly magazine by Thompson Reuters. Mr. Wallis also received the distinction as one of the best medical malpractice defense lawyers in San Antonio as voted on by his fellow attorneys in the Scene in SA magazine every year since 2009, and his peers deemed him a Top 10 Defense Attorney in San Antonio in 2016. In 2011, the Texas Bar Foundation honored Mr. Wallis as a Fellow of the organization, bestowed to only 1/3 of the top 1% of all attorneys in the state, and the San Antonio Bar Foundation recognized him as a Fellow in 2017.

Contacting Thornton, Biechlin, Reynolds and Guerra, L.C. through this website does not create an attorney-client relationship with the firm or any of the firm’s attorneys. Therefore, any communications sent via email or through this web site are not protected by the attorney-client relationship and we cannot agree to maintain the confidentiality of the same. An attorney-client relationship would require direct, personal contact between you and our firm through one or more attorneys; confirmation that appropriate conflicts checks have been cleared; and a written agreement confirming a relationship has been established and the terms thereof. The invitation to contact the firm is not a solicitation to provide professional services and should not be construed as a statement as to the availability of any of our attorneys to perform legal services in any jurisdiction.