Clark Michael Kardys, M.D., FACS
Clark Michael Kardys, M.D., FACS, is a colon and rectal surgeon and earned his medical doctorate from The University of Texas Medical Branch in Galveston, Texas.

Provider Type



Colon and Rectal Surgery

Board Certifications

Colon and Rectal Surgery

General Surgery


Texas Colon & Rectal Specialists–San Antonio Medical Center
7940 Floyd Curl Drive Tower II, Suite 1010
San Antonio, Texas 78229
Phone: 210-614-0880
Fax: 210-615-0258

Texas Colon & Rectal Specialists–San Antonio Stone Oak
18707 Hardy Oak Blvd., Suite 320
San Antonio, Texas 78258
Phone: 210-614-0880
Fax: 210-615-0258

Texas Colon & Rectal Specialists–San Antonio Westover Hills
11130 Christus Hills, Plaza III, Suite 210
San Antonio, Texas 78251
Phone: 210-245-2000
Fax: 210-245-2020


  • Residency in General Surgery
    East Carolina University Brody School of Medicine
    Greenville, NC
  • Medical Doctorate
    The University of Texas Medical Branch
    Galveston, TX

Accolades & Memberships

  • American College of Surgeons
  • American Medical Association

Surgery Locations

  • CHRISTUS Santa Rosa Hospital - Medical Center
  • CHRISTUS Santa Rosa Hospital - Westover Hills
  • Methodist Hospital
  • Methodist Hospital Specialty and Transplant
  • Methodist Hospital Stone Oak
  • North Central Baptist Hospital
  • St. Luke's Baptist Hospital

Medical Practice

  • Colon & Rectal Surgical Associates of San Antonio, San Antonio, TX (August 2011–present)


  • Anal fissures
  • Anal cancer
  • Anal fistulae
  • Anorectal disease (HPV, levator ani syndrome, skin tags, anal warts, lichen sclerosis, etc.)
  • Bloating, early satiety, gastritis, anemia
  • Colon cancer
  • Colon polyps
  • Colonic dysmotility and inertia
  • Colonic strictures
  • Constipation
  • Crohn's disease
  • Diverticulitis
  • Fecal incontinence
  • Hemorrhoids
  • HPV and anal dysplasia
  • Ileostomy/colostomy malfunction, bleeding and prolapse
  • Inflammatory bowel disease (IBD)
  • Lynch syndrome
  • Pelvic floor dysfunction (defecatory disorder)
  • Parastomal hernias
  • Perineal trauma
  • Perirectal abscesses
  • Pilonidal disease
  • Polyposis syndrome
  • Pouchitis
  • Rectal cancer
  • Rectal pain
  • Rectal bleeding, lower GI bleeding
  • Rectal prolapse
  • Rectocele
  • Recurrent C. diff colitis, toxic megacolon
  • Thrombosed hemorrhoids
  • Ulcerative colitis
  • Vaginal agenesis
  • Vaginal and recto-vaginal fistula


  • Anal manometry
  • Anal sphincter chemodenervation/BOTOX® treatment of fissures
  • Colonoscopy, screening and therapeutic
  • Colostomy and ileostomy reversal surgery
  • Endorectal ultrasound
  • Excision of skin tags
  • Fecal transplant for refractory c. diff colitis
  • Fistulotomy
  • Hemorrhoidectomy
  • Ileoanal anastomosis (J-pouch) surgery
  • Minimally invasive surgery for small bowel, colon and rectal resections (benign and malignant)
  • Laparoscopic surgery
  • Trans-anal minimally invasive surgery (TAMIS) and trans-anal endoscopic microsurgery (TEM)
  • Robotic surgery
  • SILS (single incision laparoscopic surgery)
  • Pelvic floor evaluation, therapy and biofeedback
  • Pilonidal cystectomy
  • Sphincter-preserving rectal cancer surgery
  • Screening upper endoscopy/esophagogastroduodenoscopy
  • Sacral nerve stimulation for fecal incontinence
  • Sphincterotomy and LIFT procedure
  • Virtual colonoscopy

Latest News


  • Fight Cancer Facts with Clark Michael Kardys, M.D. - March 07, 2022

Other Information

Dr. Kardys has interests in religious studies, performing arts, sports, and history.


Existing patients please access the patient portal login to request an appointment.