Summary

Dr. Billie Marek specializes in internal medicine and oncology, bringing four decades of dedicated medical practice to cancer care. He earned his medical degree from the University of Texas Health Science Center at San Antonio Joe R. and Teresa Lozano Long School of Medicine. With 43 years of experience treating patients, Dr. Marek provides comprehensive care for individuals facing cancer diagnoses. He communicates fluently in both English and Spanish.

Dr. Marek practices at multiple locations throughout the Rio Grande Valley, including Valley Baptist Medical Center in Brownsville, Knapp Medical Center in Weslaco, and Valley Baptist Medical Center in Harlingen, Texas. His clinical expertise focuses on treating colorectal cancer and both primary and metastatic breast cancer. He performs essential diagnostic procedures such as complete blood counts and creatinine clearance tests to monitor patient health throughout treatment. Patients have given him an average rating of 3.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • 3
  • 43 years of experience
  • speaks English, Spanish
  • Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med
  • 2 specialties
  • 3 areas of expertise
  • 2 board certifications
  • 6 hospital affiliations
  • 3 office locations
  • Male

Office Locations

Dr. Billie Joe Marek has 3 locations

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Dr. Billie Joe Marek, MDDr. Sapan Bhatt, MDDr. Naeem Silat, MDDr. Nilesh Vyas, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.7 
4.3 
43 Years of Experience 30 Years of Experience 29 Years of Experience 41 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English, Urdu, Sindhi Speaks English
Brownsville , TXLa Porte , TXMurphy , TXWebster , TX
Med School: Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med Med School: Pramukhswami Medical College Med School: Dow Medical College Med School: Baroda Medical College
Current Profile
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Insurance Plans Accepted by Dr. Billie Joe Marek

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Billie Joe Marek has the following 2 specialties

Specialty Expertise

Dr. Billie Joe Marek has the following 3 areas of expertise

  • Hematology/oncology
  • Medical Oncology
  • Oncology

Certifications, License, & Education

43 Years Experience

Dr. Billie Joe Marek holds an expired medical license in the state of Texas.

Medical License

Medical Doctor with an expired medical license in the state of Texas that expired in 2026.

Education & Training

Medical School

Graduated from Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med in 1983.

NPI Number

Dr. Marek's NPI number is 1346282209.

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Frequently Asked Questions

What languages does Dr. Billie Marek speak?
Dr. Billie Marek speaks English and Spanish.
Does Dr. Billie Marek accept my insurance?
You can see the insurance plans that Dr. Billie Marek accepts on their Vitals profile.
Where is Dr. Billie Marek's office located?
Dr. Billie Marek's office is located at 1040 W Jefferson St, Brownsville, TX, 78520.
Does Dr. Billie Marek accept virtual/telehealth appointments?
Dr. Billie Marek has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Billie Marek accepting new patients?
Dr. Billie Marek has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

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