Search Our Database of Vetted Medical Experts


Robyn Circle (5)

Gilbert R. Meadows, M.D.

Founder/Chief Medical Director

Dr. Gilbert Meadows brings over 40 years of clinical experience as a board-certified and fellowship trained orthopedic spinal surgeon. He additionally founded South Texas Spinal Clinic and spearheaded the development of South Texas Spine and Surgical Hospital in San Antonio.

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Mark M. Johnson

Executive Chairman

Mark Johnson brings a wealth of knowledge in business development with over 50 years of executive experience. He additionally serves on numerous boards in San Antonio and is very active within the local community and throughout South Texas.

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Shaun D. Kennedy


In Memoriam (1960-2022): On April 12, 2022, the Juris Medicus family unexpectedly lost our president, Shaun Kennedy. Shaun was a passionate servant leader and a driving force in the growth of our company, especially outside the San Antonio region. A respected mentor, his business experience spanned over 40 years. Shaun will be truly missed by all who were privileged to know him.

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Tony Carmack, CPA

Vice President of Finance & Operations

Tony Carmack’s experience in Accounting and Finance spans over 15 years and is a Certified Public Accountant in Texas. His experience will enable Juris Medicus to continue to grow while overseeing the financial operations and creating strategic plans.

Robyn Circle (3)

Nancy Segrato Barnes, Esq.

Vice President & Director of Client Development 

Nancy Barnes brings both a background in healthcare and law to Juris Medicus. She has over 15 years of top performance and success in the orthopedic medical device arena and she is also an attorney. She is licensed to practice law in the state of Texas.

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Sarah Crimmins

Director of Expert Recruiting & Development

Sarah Crimmins is a former RN with 30 years of collective clinical practice as both an OR Circulator for Methodist Healthcare System and Clinical Coordinator for Dr. Gilbert Meadows and Dr. Joel Jenné at South Texas Spinal Clinic in San Antonio. 

Robyn Priest

Robyn Priest

Director of Case Management

Robyn Priest is a certified paralegal who has over 20 years of experience working in a variety of roles to include, litigation and law firm management. She brings this knowledge to Juris Medicus to help deliver dependable solutions to our clients.

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