Billie J. Marek, MD
Medical Oncology Physician · Oncologist in Mcallen, TX
Provider details
- Specialty
- Medical Oncology Physician
- Credentials
- MD
- NPI number
- 1346282209
Checked against the CMS National Provider Identifier registry on October 2, 2026.
Medicare information
- Medical school
- University of Texas Medical School at San Antonio, graduated 1983
- Also practices
- Internal Medicine
- Also sees patients at
- Regional Employee Assistance Program
601 E San Antonio St, Suite 101w, Victoria, TX 77901 · (361) 485-9600
- Regional Employee Assistance Program
- Hospital affiliations
- Lavaca Medical Center, Hallettsville, TX · Medicare rating 4 out of 5 stars
- Cuero Regional Hospital, Cuero, TX · Medicare rating 4 out of 5 stars
- El Campo Memorial Hospital, El Campo, TX · Medicare rating 3 out of 5 stars
- De Tar Hospital Navarro, Victoria, TX · Medicare rating 2 out of 5 stars
- Yoakum Community Hospital, Yoakum, TX · Medicare rating 3 out of 5 stars
- Medicare
- Accepts Medicare assignment (the Medicare-approved amount as full payment)
- Telehealth
- Offers telehealth visits
From Medicare’s public Care Compare data (Doctors and Clinicians), checked October 3, 2026. Ratings are Medicare’s, not Know Cancer’s. Medicare Care Compare
About
Specialties
- Oncology
- Internal Medicine
Insurance
- Aetna
- Assurant Health
- Blue Cross and Blue Shield
- Blue Cross and Blue Shield - BlueCard PPO
- Cigna
- Cigna - Open Access
- Cigna PPO
- Coventry
- First Health PPO
- Humana
- MultiPlan - PHCS PPO
- MultiPlan PPO
- PacifiCare
- United HealthCare
- United HealthCare - Choice Plus POS
- United HealthCare - Options PPO
- WellPoint
Other care in Mcallen
- Holistic Practitioners in Mcallen (50)
- Home Health Care in Mcallen (46)
- Physical Therapists in Mcallen (28)
- Medical Imaging and Screening in Mcallen (20)
- Wellness and Nutrition in Mcallen (16)
- Prosthetics, Wigs & Accessories in Mcallen (13)
- Psychologists in Mcallen (11)
- Health Insurance in Mcallen (10)
- Massage Therapists in Mcallen (8)
- Psychiatrists in Mcallen (7)
- Hospice in Mcallen (2)
- Cancer Treatment Centers in Mcallen (1)
- Legal Assistance in Mcallen (1)
Listings are provided for information only and may be out of date. Know Cancer does not endorse any provider. Please confirm details directly with the provider.