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Dr. Guillermo Lazo-Diaz, MD

Dr. Guillermo Lazo-Diaz, MD

Age 50 Medical Oncology M

Telehealth available

Accepting New Patients


Dr. Guillermo Lazo-Diaz, MD is a medical oncology specialist in McAllen, TX. He currently practices at SOUTH TEXAS CANCER CENTER and is affiliated with Doctors Hospital At Renaissance. He accepts multiple insurance plans.


  1. South Texas Cancer Center

    1. 1
      Texas Oncology Mcallen Lab
      1901 S Col Rowe Blvd, McAllen, TX 78503 Existing Patients: (956) 687-5150


Spanish, English


  • Universidad Autonoma De Nuevo Leon, Medical School

Insurance Accepted

  • Aetna
  • Ambetter
  • Anthem
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Texas
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • MultiPlan

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Hospital Affiliations

  • Doctors Hospital At Renaissance
  • Mission Regional Medical Center
  • Rio Grande Regional Hospital
  • South Texas Health System Edinburg
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