Meet Our Team

Richard Ehlers, M.D., F.A.C.S.
Medical Director
Assistant Professor,Surgical Oncology

Dr. Ehlers received his medical degree and master of science degree from The University of Texas Medical Branch School of Medicine, followed by a research fellowship and residency in general surgery. He completed his fellowship in surgical oncology at MD Anderson. He is certified by the American Board of Surgery, is a Fellow of the American College of Surgeons, and a member of the Society for Surgical Oncology and the American Society of Breast Surgeons. Dr. Ehlers holds an academic appointment as assistant professor in the Department of Surgical Oncology at MD Anderson.
Additional languages spoken: Spanish

Medical Oncologists

Celyne Bueno-Hume, M.D.
Assistant Professor, General Oncology

Dr. Bueno-Hume received her medical degree from The University of Texas Medical Branch School of Medicine in Galveston. She completed her internal medicine training at Louisiana State University and her hematology and oncology fellowship training at the Mayo Clinic Florida. She is certified in medical oncology and hematology by the American Board of Internal Medicine and holds an academic appointment as assistant professor in the Department of General Oncology at MD Anderson.

Amy Hassan, M.D.
Assistant Professor, General Oncology

Dr. Hassan received her medical degree from Baylor College of Medicine in Houston, where she also completed her residency in internal medicine and fellowship in hematology and oncology. She is certified by the American Board of Internal Medicine. She has specific research experience in novel imaging techniques and therapies for breast cancer. In addition, Dr. Hassan has published reviews on blood disorders. Her clinical interests include the treatment of a broad range of hematologic diseases and cancers.
Languages spoken: Spanish

Craig Kovitz, M.D., F.A.C.P.
Assistant Professor, General Oncology

Dr. Kovitz received his medical degree from Mount Sinai School of Medicine in New York. He completed his residency in internal medicine at Wilford Hall Medical Center in San Antonio and his fellowship training in medical oncology and hematology at MD Anderson. He is certified by the American Board of Internal Medicine and is a Fellow of the American College of Physicians. Dr. Kovitz has participated in research studies on the treatment of pre-leukemic blood disorders and leukemia, as well as bone marrow transplantation. His clinical interests include a broad scope of solid tumor malignancies, as well as benign and malignant hematologic disorders.
Additional languages spoken: Spanish

Radiation Oncologists

Matthew Ballo, M.D.
Professor, Radiation Oncology

Dr. Ballo received his medical degree from Case Western Reserve University School of Medicine in Cleveland, followed by an internship at Mount Sinai Medical Center in Cleveland and a residency at MD Anderson. He is certified by the American Board of Radiology. Dr. Ballo has extensive experience using the latest radiation therapy technologies. His clinical focus is on treating patients with soft tissue sarcoma, skin cancer, and genitourinary, breast, head and neck, and gastrointestinal malignancies. Dr. Ballo holds an academic appointment as professor in the Department of Radiation Oncology at MD Anderson.

Valerie Reed, M.D.
Assistant Professor, Radiation Oncology

Dr. Reed received her medical degree from Duke University School of Medicine and completed her residency in radiation oncology at MD Anderson. She is certified by the American Board of Radiology and holds an academic appointment as assistant professor in the Department of Radiation Oncology at MD Anderson.

Care Team

Care teams also consist of Advanced Practice Nurses and Physician Assistants, who collaborate with the patient and physicians to provide top-quality cancer treatment. Mid-level providers are an essential part of cancer care in the Bay Area. 

Nurse Navigator

• Diana Vasquez 

Advanced Practice Nurses

• Harolyn Wallace
• Phyllis Evetts 

Physician Assistants

• Angela McIntosh
• Erin Hernandez