National Policy Board Executive Committee

Meet the governing board of The Network. Our physicians have a voice, with opportunities to participate in dozens of committees that lead and guide The US Oncology Network.

Lucy Langer, M.D., Chair

Dr. Lucy Langer is a medical oncologist, practice president, director of Compass Oncology’s Genetic Risk Evaluation and Testing program, and medical director of Cancer Genetics for The Network. Board certified in medical oncology, she received her medical degree from Stanford University School of Medicine. She completed her residency in internal medicine at Stanford Hospital and Clinics in CA and her fellowship in hematology and oncology at the UCLA David Geffen School of Medicine.

Leslie Botnick, M.D.

Dr. Leslie Botnick is a board-certified radiation oncologist at The Center for Radiation Therapy of Beverly Hills. He is the founder, chief medical officer, and executive officer of Valley Radiotherapy Associates Medical Group. He received his medical degree from New York Medical College. Dr. Botnick interned at Metropolitan Hospital in NY before completing his residency at the Harvard Joint Center for radiation therapy and was medical director of radiation oncology at the Beth Israel Hospital.

Barry D. Brooks, M.D.

Dr. Barry Brooks is board certified in internal medicine and medical oncology. He is a clinical associate professor at The University of TX Health Science Center, a vice chairman of the Pharmacy and Therapeutics Committee and chairman of the Contracting Subcommittee for The Network. He received his medical degree from The University of TX Southwestern Medical School and completed his internship and residency, and his fellowship at Parkland Memorial Hospital and Dallas VA Hospital.

E. Randolph Broun, M.D.

Dr. Randy Broun specializes in hematologic malignancies and bone marrow transplant. Of particular interest is the use of bone marrow transplant, especially with alternative donors. After graduating from medical school at St. Louis University, he completed a residency at Indiana University and a fellowship at The University of Texas. He was then on the faculty at Indiana University and St. Louis University prior to joining OHC. Dr. Broun is board certified in internal medicine.

Joseph Buscema, M.D.

Dr. Joe Buscema is a gynecologic oncologist who specializes in obstetrics and gynecology. He graduated from Johns Hopkins University School of Medicine. Dr. Buscema completed his residency and fellowship in gynecologic oncology at Johns Hopkins University. He has authored numerous articles on gynecologic cancer which have been published in Gynecologic Oncology, Obstetrics & Gynecology, the American Journal of Obstetrics & Gynecology Cancer, The Annual Review of Medicine, and The American Journal of Clinical Pathology.

William A. Fintel, M.D.

Dr. William Fintel specializes in medical oncology and hematology. He is board certificated in internal medicine and medical oncology. Dr. Fintel received his medical degree from the University of Minnesota Medical School. He completed his residency in internal medicine and fellowship in medical oncology at the University of Virginia. He serves as adjunct faculty at Virginia College of Osteopathic Medicine.

David C. Fryefield, M.D.

Dr. David Fryefield is a board certified radiation oncologist. He is the medical director of operational excellence at The Network and a founding member of the Willamette Valley Cancer Institute. He has a special interest in head and neck cancers, brain tumors, lung cancer, and prostate cancer. Dr. Fryefield received his medical degree from the University of Cincinnati. He completed his residency at the University of CA in San Francisco.

Dean Gesme, M.D., FACP, FACPE

Dr. Dean Gesme is board certified in internal medicine and medical oncology. He has been with Minnesota Oncology since 2006. His areas of special interest are breast cancer, gastrointestinal malignancies, lung cancer, and tumors of the head and neck. He received his medical degree from the University of Iowa College of Medicine. Dr. Gesme completed his residency in internal medicine at Public Health Service Hospital in San Francisco and his fellowship in medical oncology at the University of MN.

Vivek S. Kavadi, M.D.

Dr. Vivek Kavadi is board certified and specializes in radiation oncology. He serves on the board of directors for Texas Oncology, on the radiation executive committee for The Network, and as a principal investigator for the Radiation Therapy Oncology Group. He received his medical degree from Harvard Medical School and graduated Summa Cum Laude from Rice University. He did a transitional internship at Baylor College of Medicine and a residency at The University of Texas MD Anderson Cancer Center, where he was chief resident.

Mark J. Messing, M.D.

Dr. Mark Messing specializes in gynecologic oncology and is board certified in gynecologic oncology and obstetrics and gynecology. He is a member of the cancer committees at Baylor Grapevine Regional Medical Center and Harris Methodist HEB hospital where he also serves as the American College of Surgeons liaison. Dr. Messing received his medical degree from Emory University and completed his internship and residency at the University of Alabama at Birmingham and his fellowship at The University of Texas MD Anderson Cancer Center.

R. Steven Paulson, M.D.

Dr. Steven Paulson has served as president and chairman of Texas Oncology since 2000. He is a diplomat of the American Board of Internal Medicine. He is board certified. Dr. Paulson received his medical degree from The University of TX Southwestern Medical School. He received training at Harvard Medical School, at Peter Brent Brigham Hospital, and completed training at Parkland Memorial Hospital, where he also did a fellowship. Dr. Paulson received additional training at the Bone Marrow Transplant Unit at Fred Hutchinson Cancer Center.

Alex Spira, MD, PhD, FACP

Dr. Alex Spira, a graduate of Harvard University, earned his medical degree from the NY University School of Medicine. He completed his internship and residency at the Hospital of the University of PA, completed his fellowship at Johns Hopkins Hospital and received his PhD from the NY University School of Arts & Science. He is the Director of the VCS Research Institute and Phase I Trial Program and serves as medical director for the Inova Thoracic Oncology Program and as chair of The Network Pathways Committee for lung cancer and is a Fellow of the American College of Physicians.

Ira Zackon, M.D.

Dr. Ira Zackon is director of the New York Oncology Hematology Stem Cell Transplant Program and sits on the NYOH Board of Directors. He is board certified in internal medicine, medical oncology, and hematology. He received his medical degree from McGill University Montreal. He completed his internship and residency in internal medicine at Royal Victoria Hospital, McGill University. He completed his fellowship at Dartmouth-Hitchcock Medical Center and his research fellowship at Northwestern University Medical Center in Chicago, IL.