Patients Only Portal

Medical Center (800) 924-1455
Stone Oak (800) 280-7977

in San Antonio (210) 614-6432


M_David_Dennis_MD.jpgM. David Dennis, M.D.

Dr. Dennis completed his undergraduate work at the University of Texas at Austin. Upon graduation, he entered Baylor College of Medicine where he earned the degree of Doctor of Medicine in 1975. After serving his internship and Orthopaedic Residency at Baylor, Dr. Dennis did a Fellowship in Low Back Pain at Texas Tech University, Lubbock, Texas. While in Fellowship training at Texas Tech, he organized and directed the Low Back Pain Clinic. He completed a Leon Wiltse, M.D. Fellowship at the University of California, Long Beach, where he was a consultant to the Low Back Pain Clinic.
Dr. Dennis received his Board Certification from The American Board of Orthopaedic Surgeons in September of 1981. He is a fellow of The American Back Society, and is a member of several professional organizations. Dr. Dennis is an Assistant Clinic Professor at the University of Texas Health Science Center, San Antonio and has served as Chief and Vice Chief of Orthopaedics at the Methodist Hospital San Antonio, Texas.

Dr. Dennis' Staff

San Antonio Staff:
Mary Tamez, Clinic Manager/Clinical Research Coordinator
Michael Gauna
Nora Villanueva
(210) 614-6432
(210) 615-3577 -Fax

Laredo Staff:
Christina Castillo
Tracy Estevenas, M.A.
(956) 717-8397
(956) 717-5959 - Fax


Primary Office Location

Medical Center South Texas Spinal Clinic, P.A.
5282 Medical Drive, Suite 200
San Antonio, TX  78229
(210) 614-6432


Other Locations

Laredo South Texas Spinal Clinic, P.A.
6801 McPherson Rd., #219
Laredo, TX 78041-2227
(956) 717-8397
(956) 717-5959

Eagle Pass South Texas Spinal Clinic, P.A.
3333 N. Foster Maldonado Blvd.
Eagle Pass, TX 78852
Phone: (956) 717-8397
Fax: (956) 717-5959



  • Baylor College of Medicine
  • University of Texas
  • Tulane University


Licensure and Board Certification

  • Texas State Board of Medical Examiners and American Board of Orthopedic Surgery


Hospital Privileges

  • Methodist Health Care Hospitals
  • Baptist Health System Hospitals
  • Methodist Stone Oak
  • The Spine and Surgical Hospital of South Texas @ Sonterra


Contact South Texas Spinal Clinic at (210)614-6432 for more information.