• Request an Appointment
    Texas Oncology is ready to help you fight cancer. To schedule your first appointment, call 1-888-864-4226 or request an appointment online. Learn More.
  • Find a cancer center
    Texas Oncology has more than 150 treatment centers throughout Texas and southeastern Oklahoma. Use the map below to search for Texas Oncology centers close by. Learn More.
  • Find a physician
    Texas Oncology is a group more than 375 physicians focused on treating cancer and blood disorders. No matter where you may live in Texas or Southeastern Oklahoma, we have a physician near you. Learn More.
  • Clinical Trials
    Clinical trials allow you to access new, experimental treatments before they are widely available. Learn More.

Lazo, Guillermo, M.D. PDF Print-friendly PDF

Lazo, Guillermo, M.D.

Provider Type: Physician



General Summary:

Dr. Lazo specializes in hematology and medical oncology. Dr. Lazo is board certified in internal medicine and medical oncology. He received his ACLS certification in 1996 and his ECFMG certificate in 1996.


Family Practice (1993) - Rural Health Center, Higueras Nuevo Leon, Mexico. Assistant Physician (1994) - Hospital Jose Muguerza, Monterrey Nuevo Leon, Mexico. Research Associate (1995) - University of Texas Medical School, Division of Pulmonary and Critical Care Medicine, Houston, TX. Internal Medicine Internship (1996) - UT Medical School, Houston, TX. Internal Medicine Residency (1997-2000) - University of Kansas Medical School, Kansas City, Kansas. Hospitalist (2000-2001) - Department of General Internal Medicine, UT MD Anderson Cancer Center, Houston, TX. Medical Oncology/Hematology Fellow (2001-2004) - UT MD Anderson Cancer Center, Houston, TX.

Accolades & Memberships:

American Society of Hematology, 2001; American Society of Clinical Oncology, 2002; American College of Physicians -American Society of Internal Medicine, 1997; American Thoracic Society, 1996;

Other Information:

Clinical Focus:

Latest News: