Michael A. Keller, M.D., FACS, FASCRS

Education

• Fellowship in Colon and Rectal Surgery
  The University of Texas Southwestern Medical Center
  Dallas, TX
• Residency in General Surgery, Chief Resident
  The University of Mississippi Medical Center
  Jackson, MS
• Medical Doctorate
  The University of Texas Health Science Center
  Houston, TX

Accolades & Memberships

• American College of Surgeons
• American Society of Colon and Rectal Surgeons
• Texas Medical Association
• Texas Society of Colon and Rectal Surgeons

Primary Hospital Affiliations and Surgical Facilities

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

Medical Practice

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

Conditions

• 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

Procedures

• 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

• Doctors Prepare to Tackle Surgery Cases Put Off Because of Coronavirus
• Local Doctors Prepare to Resume Elective Surgeries