Leonel Kahn, MD is a board-certified radiation oncologist with Peachtree Radiation Oncology Services. He joined the group in 2018 and practices at Piedmont Kennesaw, Piedmont Atlanta Hospital, and Piedmont West. He practices general radiation oncology and has extensive experience with modern radiation oncology techniques (intensity modulated radiation therapy, image guided radiation therapy, and stereotactic body radiotherapy). He has a special interest in gastrointestinal, breast, and central nervous system malignancies. He has additional training in stereotactic radiosurgery (Gamma Knife and linear accelerator-based radiosurgery) for malignant and benign conditions.Dr. Kahn is an enthusiastic and committed physician. His skill sets are particularly suited to bridge the gap between the systematic processes of treatment planning and delivery versus the warmhearted nature of caring for cancer patients. He is a critical thinker and enjoys the process of assimilating scientific evidence with patient-specific factors to determine the best treatment decision. His experience has refined his ability to make decisive choices in the face of complex cancer care. He also establishes deep bonds with his patients, grounded in compassion and empathy. He thrives on the demanding nature of the profession in terms of learning and updating his knowledge base as the field constantly evolves. Importantly, radiation oncology is a field in which he feels endlessly honored and humbled to work.In addition to his clinical responsibilities, he is a voting member of the Piedmont Healthcare Institutional Review Board. He also has comprehensive training in clinical trial enrollment to national cooperative group protocols. He enjoys discussing potential clinical trials with patients, if it is in line with their wishes.He attended Tulane University in New Orleans, Louisiana, where he received a Bachelor of Science in Neuroscience (Summa Cum Laude). He then earned his medical degree from Oregon Health and Science University in Portland, Oregon. For his graduate medical education, he performed an internship at Legacy Health System in Portland, Oregon and completed a radiation oncology residency at the University of California, Davis Comprehensive Cancer Center in Sacramento, California. He served as chief radiation oncology resident during his final year. Dr. Kahn was born in Louisiana, but raised in Eugene, Oregon. Walking his corgi dog and cooking are the two ways he spends most of his weekends. He is also very happily married. Dr. Kahn is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Anal Cancer, Posterior Fossa Tumor, Primitive Neuroectodermal Tumor (PNET), and Pleuropulmonary Blastoma.

Pretesh Patel is a Radiation Oncologist in Atlanta, Georgia. Dr. Patel has been practicing medicine for over 18 years and is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Prostate Cancer, Anal Cancer, Familial Prostate Cancer, Prostatectomy, and Pancreaticoduodenectomy.

Adam Nowlan, MD is a board-certified radiation oncologist, currently practicing and serving as Medical Director of the radiation oncology department at Piedmont Hospital in Atlanta, GA.Dr. Nowlan is very active in clinical research activities. He previously chaired the Piedmont Healthcare Institutional Review Board and is an active member of the Piedmont Hospital Oncology Scientific Review Committee.Dr. Nowlan has been named to sit on the recently convened Piedmont Healthcare Oncology Clinical Governance Committee, responsible for executive guidance of system initiatives.Dr. Nowlan serves as the Piedmont Healthcare principal investigator for the Radiation Therapy Oncology Group clinical trials that are open at Piedmont Hospital locations in Buckhead, Atlanta and Fayette.Dr. Nowlan is a member of the clinical trials team at the recently launched Piedmont Hospital Brain Tumor Center.Throughout his medical experience, Dr. Nowlan's work has appeared in several publications, and he has engaged in research projects and presentations on a wide variety of relevant radiation oncology subjects.In his spare time, Dr. Nowlan enjoys skiing, watching roller derby and spending time with his wife and family. Dr. Nowlan is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Posterior Fossa Tumor, Astrocytoma, Lung Cancer, Pleuropulmonary Blastoma, and Awake Craniotomy.

John Adams is a Colorectal Surgeon in Columbus, Georgia. Dr. Adams has been practicing medicine for over 23 years and is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Familial Colorectal Cancer, Anal Cancer, Colorectal Cancer, Hernia Surgery, and Ileostomy.

Wilfred Williams is a Radiation Oncologist in Cumming, Georgia. Dr. Williams is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Familial Prostate Cancer, Prostate Cancer, Anal Cancer, Pleuropulmonary Blastoma, and Pacemaker Implantation.

Navin Wadehra is a Hematologist Oncology specialist and a Hematologist in Hiram, Georgia. Dr. Wadehra is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Hereditary Spherocytosis, Hemolytic Crisis, Familial Colorectal Cancer, and Paget Disease of the Breast. Dr. Wadehra is currently accepting new patients.

Saloni Tanna is a Hematologist Oncology specialist and an Oncologist in Gainesville, Georgia. Dr. Tanna is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Lung Cancer, Childhood Iron Deficiency Anemia, Pleuropulmonary Blastoma, and Iron Deficiency Anemia. Dr. Tanna is currently accepting new patients.

Christina Saurel is a Hematologist Oncology specialist and an Oncologist in Gainesville, Georgia. Dr. Saurel is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Vitamin B12 Deficiency Anemia, Multiple Carboxylase Deficiency, Folate Deficiency, and Subacute Combined Degeneration. Dr. Saurel is currently accepting new patients.

Rajni Sinha is a Hematologist and an Oncologist in Atlanta, Georgia. Dr. Sinha is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Paget Disease of the Breast, Breast Cancer, Familial Colorectal Cancer, and Pancreatic Cancer. Dr. Sinha is currently accepting new patients.

Dr. Kim Vu Neisler graduated magna cum laude from Rhodes College with a Bachelor of Science in Biochemistry. She earned her medical degree from University of Tennessee and completed her residency in Radiation Oncology at the Medical University of South Carolina. Dr. Neisler, a board-certified radiation oncologist, has practiced in the Atlanta area as a member of Radiation Oncology Services since 2005. She currently serves as the Medical Director of the Piedmont Henry Radiation Oncology Center in Stockbridge, GA. Also, as Medical Director for the Piedmont Henry Oncology Program, Dr. Neisler works closely with the Oncology Director at Piedmont Henry Hospital to help coordinate the cancer program. She is also proud to serve as a member on the Piedmont Executive Cancer Committee, which was formed to implement changes and improvements to strengthen the entire Piedmont cancer program. Dr. Neisler practices primarily at Piedmont Henry Hospital. The community counts on her experience and expertise in the treatment of all types of cancers. She is well-versed in intensity-modulated radiation therapy (IMRT) and has special interests in breast cancer. Dr. Neisler works closely with a team of area surgeons, medical oncologists, and nurses to help coordinate comprehensive cancer care for all her patients. Dr. Neisler enjoys cooking and traveling to try new foods and therefore must also enjoy exercising. Dr. Neisler is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Anal Cancer, Breast Cancer, Pleuropulmonary Blastoma, and Prostate Cancer.

Eric Mininberg is a Hematologist and an Oncologist in Stockbridge, Georgia. Dr. Mininberg is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Paget Disease of the Breast, Breast Cancer, Familial Colorectal Cancer, and Pleuropulmonary Blastoma. Dr. Mininberg is currently accepting new patients.

Olatunji Alese is an Oncologist in Atlanta, Georgia. Dr. Alese has been practicing medicine for over 26 years and is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Colorectal Cancer, Pancreatic Cancer, Neuroendocrine Tumor, Gastrointestinal Stromal Tumor, and Pancreaticoduodenectomy.

Jeffrey Thomas is a Hematologist and an Oncologist in Athens, Georgia. Dr. Thomas is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Midline Lethal Granuloma, Iron Deficiency Anemia, Essential Thrombocythemia, and Breast Cancer. Dr. Thomas is currently accepting new patients.

Patrick Sullivan is a Colorectal Surgeon in Atlanta, Georgia. Dr. Sullivan has been practicing medicine for over 21 years and is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Anal Cancer, Colostomy, and Bladder Reconstruction.

Ari Reichstein is a Colorectal Surgeon in Atlanta, Georgia. Dr. Reichstein has been practicing medicine for over 19 years and is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Anal Cancer, Familial Colorectal Cancer, Colorectal Cancer, Ileostomy, and Colostomy.

Daniel Halperin is a primary care provider, practicing in Family Medicine in Lilburn, Georgia. Dr. Halperin has been practicing medicine for over 21 years and is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Neuroendocrine Tumor, Carcinoid Syndrome, Pancreatic Islet Cell Tumor, Pancreaticoduodenectomy, and Colonoscopy.

Dr. Szabo is board certified in hematology, medical oncology, and internal medicine. He completed his hematology-oncology training at Emory University Hospital and his internal medicine residency at the University of Michigan Hospitals. He earned his medical degree at Cornell University Medical College.Dr. Szabo has been practicing medicine for more than 20 years. Most recently, he was Chief of Staff at Emory St. Joseph Hospital. Prior to that, he was Chief of Staff at Emory Johns Creek Hospital and the Director of the Division of Community Oncology for the Department of Hematology Oncology at Emory Healthcare.Dr. Szabo has special interests in breast cancer, gastrointestinal cancer, and benign and malignant hematology. In his free time, Dr. Szabo enjoys promoting health education, hiking, sailing, and spending time with his family.Dr. Szabo and the team at Piedmont Oncology have the resources you need conveniently close to home.Dr. Szabo is accepting new patients and welcomes most major insurance plans. Dr. Szabo is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Hereditary Neuroblastoma, Inflammatory Breast Cancer, Gastric Lymphoma, Bone Marrow Aspiration, and Colonoscopy.

Kota Venkatesh is a Colorectal Surgeon in Suwanee, Georgia. Dr. Venkatesh has been practicing medicine for over 31 years and is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Hemorrhoids, Proctitis, Familial Colorectal Cancer, Colostomy, and Hernia Surgery.

Vasileios Assikis is a Hematologist and an Oncologist in Fayetteville, Georgia. Dr. Assikis is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Clear Cell Sarcoma, WT1-Related Wilms Tumor Syndromes, Adult Soft Tissue Sarcoma, and Renal Cell Carcinoma (RCC). Dr. Assikis is currently accepting new patients.

Jay Rhee is a Hematologist and an Oncologist in Atlanta, Georgia. Dr. Rhee is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Pleuropulmonary Blastoma, Thrombocytopenia, Acute Mountain Sickness, and Childhood Iron Deficiency Anemia. Dr. Rhee is currently accepting new patients.