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Dr. Billie Marek, MD

Dr. Billie Marek, MD

Age 66 Medical Oncology M
(23) 23 reviews

Telehealth available

Accepting New Patients


Dr. Billie Marek, MD is a medical oncology specialist in McAllen, TX. Dr. Marek completed a residency at U Ky Med Ctr. He currently practices at Texas Oncology and is affiliated with Doctors Hospital At Renaissance. He accepts multiple insurance plans. Dr. Marek is board certified in Internal Medicine.


  • MD Anderson, Fellowship Hospital — 1988
  • U Ky Med Ctr, Residency Hospital — 1986
  • U Ky Med Ctr, Internship Hospital — 1984

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)

* Please verify this information when scheduling an appointment.


  1. Texas Oncology

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

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Dr. Billie Marek is an Angel sent from Heaven! He is such a kind hearted, patient, Oncologist! He helped guide me through my treatment and journey with stage 3 breast cancer. I’m so grateful for him! I would recommend him to anyone who is seeking treatment! There needs to be more Drs out there that have a good heart like him!
Silvia G — Mar 23, 2021
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Dr. Billie Marek, MD
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Frequently Asked Questions

Dr. Marek frequently treats Anemia, Bleeding Disorders, and Thrombocytosis.  

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Hospital Affiliations

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