Harlingen
Marco A. Araneda, MD
Medical Oncology/Hematology
Dr. Araneda specializes in medical oncology and is board-certified in internal medicine and medical
oncology. He received his medical degree from San Carlos University in Guatemala and completed a
medical oncology fellowship at East Tennessee State University, Johnson City, Tennessee, as well as a
fellowship in bone marrow transplantation at the University of Florida, Gainesville, Florida. He has special
interests in breast cancer, gastrointestinal malignancies, hematologic malignancies, and molecular
targeted therapy.
Nabeel Sarhill
Medical Oncology/Hematology
Dr. Nabeel Sarhill is board-certified in hematology, medical oncology, and internal medicine. He earned his
medical doctorate from the University of Tishreen Medical School in Lattakia , Syria, and completed his
residency in internal medicine at Case Wester Reserve University in Cleveland, Ohio. His fellowship in
hematology was completed at the University of Texas Health Science Center in San Antonio, Texas, and his
clinical research fellowship in medicine and symptoms management at The Harry R. Horvitz Center for
Palliative Medicine in Cleveland, Ohio. Dr. Nabeel Sarhill is a member of the American Society of Clinical
Oncology, American Society of Hematology, Syrian Medical Association, Syrian Ministry of Health, American
Board of Hematology, American Board of Medical Oncology, and the American Board of Internal Medicine.
Benjamin West, MD
Radiation Oncology
Dr. West is a board-certified radiation oncologist. He was a physicist prior to becoming a physician.
Hayan Moualla, MD
Medical Oncology/Hematology
Dr. Moualla completed his Internal Medicine residency followed by a fellowship in Geriatrics and later a
fellowship in Hematology and Medical Oncology at the University of New Mexico in Albuquerque. For
almost 5 years before joining Texas Oncology, Dr. Moualla practiced in beautiful southern Virginia. He is
Board Certified in Hematology and Medical Oncology with special interest in elderly cancer and blood
disorders. His emphasis is making sure that all patient understand their conditions well and have a good
idea about available options. Dr. Moualla is married and has a boy and twin girls. His biggest pleasure is
spending time with family. He also enjoys soccer, ping pong, badminton and swimming.
Harlingen 2121 Pease Street, Suite 101 Harlingen, Texas 78550 PH: 956.425.8845 FAX: 956.364.6793
www.TexasOncology.com