Radiation Oncology Physicians

At Cape Fear Valley Cancer Center’s Radiation Oncology Department, our team of three full-time, board-certified radiation oncologists and a physician assistant delivers exceptional, compassionate care.

PHYSICIANS

Hugh Bryan, M.D.
Istvan Pataki, M.D.
Sally Smith, M.D.
Thomas Walden, M.D.
Allan Seffels, PA-C
Charlene Ray

Dr. Hugh Bryan

Hugh Bryan, M.D.
A native of Lenoir County, Dr. Bryan calls North Carolina home. A diehard UNC fan, Dr. Bryan received his Bachelor of Arts degree from the University of North Carolina at Chapel Hill in 1965 and his medical degree from the University of North Carolina at Chapel Hill in 1969.

Dr. Bryan completed an internship in Pediatrics at North Carolina Memorial Hospital in 1970 and was Assistant Resident in Pediatrics at North Carolina Memorial Hospital in 1971. From 1971 to 1973, he was Clinical Associate in the Medical Oncology Branch at the National Cancer Institute in Bethesda, Md. He completed a Fellowship in Pediatric Hematology and Oncology at North Carolina Memorial Hospital in 1974.

From 1974 to 1978, Dr. Bryan was Assistant Professor of Pediatrics at the University of North Carolina School of Medicine in Chapel Hill. He returned for a residency in Radiation Therapy at the Hospital of the University of Pennsylvania in Philadelphia, Penn., completing it in 1980. From 1980 to 1982, Dr. Bryan was Assistant Professor of Radiation Therapy at the University of Pennsylvania School of Medicine. He was affiliated with the Fox Chase Cancer Institute at the University of Pennsylvania.

Dr. Bryan returned to his North Carolina roots in 1982 and started the Radiation Oncology Department at Cape Fear Valley. Finally patients were able to receive complete cancer care in their home community. No longer did they have to drive the 90-minute drive to Duke Medical Center or UNC Hospitals.
Dr. Bryan is a member of the American Medical Association, the American Society of Clinical Oncology, the North Carolina Medical Society, the American Society for Therapeutic Radiology and Oncology, the Southern Medical Association, the Southern Association for Oncology, the American Association for the Advancement of Science, and Alpha Omega Alpha.

As Medical Director of the Radiation Oncology Department, Dr. Bryan’s opinion is often sought during weekly cancer conferences. He is board certified in Radiation Oncology, Pediatric Hematology and Oncology, and Pediatrics.
Dr. Bryan is married and has four children, two sons and two daughters.

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Dr. Istvan Pataki

Istvan Pataki, M.D.
A native of Toronto, Canada, Dr. Pataki received his medical degree from the University of Toronto Medical School in 1994.

After completing a residency in Radiation Oncology at Princess Margaret Hospital at the University of Toronto, Dr. Pataki completed a fellowship in brachytherapy at William Beaumont Hospital in Royal Oak, Michigan.

Dr. Pataki served as Assistant Professor in the Department of Radiation Oncology at Robert Wood Johnson Medical School/University of Medicine and Dentistry of New Jersey in New Brunswick, N.J. from 2000 to 2001.

From 2001 until October 2005, Dr. Pataki was affiliated with the Department of Radiation Oncology at Delaware County Memorial Hospital in Drexel Hill, Pennsylvania.

Dr. Pataki is a member of the American Society for Therapeutic Radiology and Oncology, the American Brachytherapy Society, the American College of Radiation Oncology and the Royal College of Physicians and Surgeons (Canada).

In addition to giving many talks to both physician and patient communities, Dr. Pataki has written several journal articles. He has also co-authored a textbook chapter on the Management of Advanced Stage Endometrial Cancer.

Dr. Pataki is board certified through the American Board of Radiology (Therapy) and is a Fellow of the Royal College of Physicians (Canada).

Dr. Pataki is an avid runner and tennis player. Dr. Pataki and his wife, who is also a radiation oncologist, have two small children. When not at work, Dr. Pataki enjoys spending time with his wife, children and extended family.

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Dr. Sally Smith

Sally Smith, M.D.
Dr. Sally Smith was born and raised in Chapel Hill. After graduating from Chapel Hill High School, she went on to receive her undergraduate and medical degrees from the University of North Carolina at Chapel Hill.

In 1981, Dr. Smith graduated cum laude from the University of North Carolina with a Bachelor of Science degree in Zoology. She received her medical degree from the University of North Carolina School of Medicine in 1988.

She completed a residency in radiation oncology at Duke University Medical Center in Durham.

From 1993 until 2009, Dr. Smith was a Radiation Oncologist at Duke University Medical Center. From 1997 to 2009, she was also Assistant Chief of Section, Division of Radiation Oncology, at Durham Veterans Administration Medical Center.

Dr. Smith is a member of the American Association of Women Radiologists, the American Brachytherapy Society, the American College of Radiology, the American Medical Association, the American Society of Therapeutic Radiology and Oncology and the North Carolina Medical Society. Dr. Smith is board certified in Radiation Oncology.

Dr. Smith is the author of eight articles in peer-reviewed publications. Her special interests include general radiation oncology, prostate, brachytherapy, breast, lung, head and neck cancer.

She and her husband live in Chapel Hill with their four children.

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Dr. Thomas Whelden

Thomas Walden, Jr., M.D., Ph.D.
Dr. Walden is from Raleigh, N.C., and received his Bachelor of Science degree in Zoology from North Carolina State University in 1975. He received a Master of Science degree in 1979 and a Ph.D. in 1983, both in Radiation Biology from the University of Tennessee in Knoxville, Tenn.

While a graduate student, Dr. Walden was the recipient of a one-year research grant from the American Cancer Society and a Cystic Fibrosis Foundation Predoctoral Fellowship. He completed a National Research Council Postdoctoral Fellowship.

After earning his Ph.D., Dr. Walden worked at the Armed Forces Radiobiology Research Institute (AFRRI) in Bethesda, Md. from 1983 to 1989. Dr. Walden’s interest in radiation biology and cancer led him to apply to medical school, and in 1993 he received his medical degree from Georgetown University School of Medicine in Washington, D.C.

After an internship at Fairfax Hospital in Annandale, V.a, Dr. Walden completed a residency in Radiation Oncology from the National Cancer Institute in Bethesda, Md. in 1997.

Dr. Walden joined the Cancer Center in 1999, moving from Richmond, Va., where he was Clinical Assistant Professor at Medical College of Virginia and on the staff of the Veterans Administration Medical Center.

Dr. Walden also practices in Lumberton at Southeastern Regional Medical Center. Dr. Walden’s vast knowledge of radiation therapy makes him a respected participant and presenter at cancer conferences in Fayetteville and Lumberton. He is the co-author or numerous scientific and medical journal articles in the fields of radiation biology and radiation oncology.

Dr. Walden’s memberships include the American Association for the Advancement of Science, American Association for Cancer Research, American Medical Association, American Society for Therapeutic Radiation Oncology, American Society for Clinical Oncology, North Carolina Medical Society and Sigma Xi.

Dr. Walden is certified by the American Board of Radiology in Radiation Oncology.
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Allan Seffels PA-C

Allan Seffels, PA-C
A resident of Fayetteville since 1971, Allan Seffels is a Physician Assistant in the Radiation Oncology Department at the Cancer Center. He works with Dr. Bryan, Dr. Walden and Dr. Pataki, assessing and managing cancer patients who are receiving radiation therapy.

Allan graduated from Terry Sanford High School in Fayetteville in 1972. He received his Bachelor of Science Degree from Campbell University in Buies Creek, North Carolina in 1976.

In 1987, Allan graduated from the Physician Assistant Program at Wake Forest University School of Medicine in Winston-Salem, N.C. He is a Certified Physician Assistant.

From 1987 to 1989, Allan worked with Vic Keranen, M.D., a Fayetteville Neurosurgeon. From 1989 to 1995 he was associated with Cape Fear Orthopedic Clinic in Fayetteville. Allan joined the Radiation Oncology Department at the Cancer Center in 1995.

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Charlene Ray

Charlene Ray, NP
Charlene Ray, NP, is a Certified Adult Nurse Practitioner with sub-specialty certification in Oncology. She has 23 years of oncology experience and over 34 years of experience in nursing. She currently is employed by Southeastern Radiation Oncology, working at the Cancer Centers at Cape Fear Valley, and Health Pavilion North, as well as Gibson Cancer Center in Lumberton.

Charlene earned her LPN certificate from Jackson Community College in Jackson, Michigan in 1979 and her Associate Degree in Nursing from State University of New York Regent’s College in Albany, New York in 1994. In 2003 she graduated Magna Cum Laude with a Bachelor of Science in Nursing degree from Excelsior College, and in 2005, a Master of Science in Nursing from Duke University. Her Nurse Practitioner program of study focused on Oncology management with sub-specialization in HIV and Palliative Care.

Charlene has worked for Cape Fear Valley’s Cancer Center a number of times over the past 23 years. She has a cumulative total of 11 years in the Medical Oncology department, and is now working in the field of Radiation Oncology. She’s responsible for patients who are undergoing radiation treatments and those who require continued follow-up observation.

In addition to her experience at the Cancer Center, she has specialized in palliative care and pain management while in private practice; and also sub-specialized in Gynecologic Oncology at Womack Army Medical Center.

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