Michael
Michael A. Keller, M.D., is a colon and rectal surgeon and earned his medical doctorate from The University of Texas Health Science Center in Houston, Texas.

Provider Type

Physician

Specialties

Colon and Rectal Surgery

Surgical Oncology

Board Certifications

Colon and Rectal Surgery

General Surgery

Locations

Texas Colon & Rectal Specialists–Boerne
124 E. Bandera Road, Suite 301
Boerne, Texas 78006
Phone: 210-614-0880
Fax: 210-615-0258

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

Spoken Languages

English

Prep Kit Instructions

Bowel Prep - Keller

Golytely Prep - Keller

Mag Citrate Prep

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 Ambulatory Surgery Center
  • 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

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