Michael A. Keller, M.D., FACS, FASCRS
Colon & Rectal Surgery, Surgical Oncology
Texas Colon & Rectal Specialists–San Antonio Medical Center
7940 Floyd Curl Drive, Tower II, Suite 1010
San Antonio, TX 78229
+1 (210) 615-0258
About
Michael A. Keller, M.D., FACS, FASCRS, is board certified in colon and rectal surgery and general surgery. Dr. Keller realized he wanted to become a surgeon in 10th grade biology class! He wants to make a meaningful difference in people's lives, and surgery is an exciting and innovative way to serve others. He notes that the personal relationship he develops with you is the most rewarding part of his practice.
Patient Instructions
Surgery Locations
- 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
Experience
Education
Fellowship in Colon and Rectal Surgery
The University of Texas Southwestern Medical Center, Dallas, TX
Residency in General Surgery, Chief Resident
University of Mississippi Medical Center, Jackson, MS
Medical Doctorate
The University of Texas Health Science Center, Houston, TX
Condition
Anal Cancer
Targeted surgical solutions for anal cancer—focused on preserving function and supporting your recovery every step of the way.
Condition
Appendiceal Cancer
Specialized surgical care for appendiceal cancer—offering advanced treatment and support every step of the way.
Condition
Colon CancerColon cancer is a leading cause of cancer-related death in Texas, but the right medical care can save lives. Our physicians use the most advanced methods to diagnose and treat colon cancer. With locations across Texas, you don’t have to travel far to receive expert care.
Condition
Colon & Rectal CancerComprehensive care for colon and rectal cancers—from screening and diagnosis to surgery and survivorship. Focused rectal cancer care with advanced treatments and coordinated support—from diagnosis through recovery.
Condition
Fecal IncontinenceRestore bowel control with advanced diagnostics and treatments, including nerve stimulation.
Condition
Fistulas & FissuresRelief for anal fistulas and fissures with surgical and non-surgical care from board-certified colon & rectal surgeons across Texas.
Condition
Hemorrhoids
Relief for hemorrhoids with advanced non-surgical and surgical options from Texas Colon & Rectal Specialists—care close to home.
Condition
Inflammatory Bowel DiseaseComprehensive care for Crohn’s and ulcerative colitis — from medical therapy to advanced surgical options.
Condition
Pseudomyxoma Peritonei
Specialized treatment for pseudomyxoma peritonei—focused on advanced surgical care and improved quality of life.
Condition
Rectal CancerRectal Cancer
Personalized rectal cancer care with advanced surgical techniques for better outcomes and faster recovery.
Condition
SarcomaTargeted care for soft tissue and bone sarcomas with advanced surgery, coordinated therapies, and support tailored to your goals.
Service
Colorectal CareMinimally invasive care for colon and rectal conditions—personalized surgical options tailored to you.
Service
High Risk Surveillance and Prevention
Monitors individuals at increased risk for disease, using screenings and interventions to detect and prevent health issues early.
Service
Port Placement
A port is a small device placed under the skin to provide easy, long-term access to veins for treatments like chemotherapy or blood draws.
Service
Port Removal
A minor surgical procedure to safely remove an implanted port, typically used after completion of long-term intravenous therapy.
Diagnosis
Colonoscopy
Colonoscopies are a safe and effective way to examine the full lining of the colon and rectum, diagnose colorectal problems and ensure your health.
Treatment
Abscess Drainage
A minor procedure to remove pus from an infected area, relieving pain and promoting healing of the affected tissue.
Treatment
Diverticulectomy
Surgical removal of a diverticulum to relieve symptoms or prevent complications such as infection, bleeding, or perforation.
Treatment
Laparoscopic Surgery
Minimally invasive laparoscopy for cancer care—smaller incisions, faster recovery, and precise treatment.
Treatment
Radical Excision of Metastatic Lesions
Surgical removal of cancerous tumors that have spread to other parts of the body to control disease and improve survival.
Treatment
Robotic SurgeryRobotic-assisted cancer surgery for precise treatment, minimal scarring, and quicker recovery across many cancer types.
Treatment
Second Opinion Consultation
A second opinion consultation provides expert review of a diagnosis or treatment plan to ensure accuracy and explore alternative options.
Treatment
Skin Biopsies
A skin biopsy involves removing a small skin sample for laboratory analysis to diagnose skin conditions or diseases.
Locations