Home | Contact Us | Site Map 1110 N Sarah DeWitt Drive | Gonzales, Texas 78629 | 830-672-7581 Kathleen Koerner, D.O., M.S. General Surgery Sievers Medical Clinic 1110 N Sarah DeWitt Dr. Gonzales, TX 78629 Phone: 830-672-8502      Home - Back - Top of Page - Contact Us - Site Map - Notice of Privacy Practices - Important Notice Gonzales Memorial Hospital | 1110 Sarah DeWitt Drive | Gonzales, Texas 78629 | 830-672-7581