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 an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Anal Cancer, Posterior Fossa Tumor, Primitive Neuroectodermal Tumor (PNET), and Pleuropulmonary Blastoma.

Ji Koo is a Dermatologist in Woodstock, Georgia. Dr. Koo is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). Her top areas of expertise are Warts, Actinic Keratosis, Seborrheic Keratosis, and Familial Atypical Multiple Mole Melanoma Syndrome. Dr. Koo is currently accepting new patients.

Mark Chastain is a Dermatologist in Marietta, Georgia. Dr. Chastain is rated as an Advanced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Basal Cell Skin Cancer, Squamous Cell Skin Carcinoma, Actinic Keratosis, and Head and Neck Squamous Cell Carcinoma (HNSCC). Dr. Chastain is currently accepting new patients.

Josh Hammel is a Dermatologist in Marietta, Georgia. Dr. Hammel is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Basal Cell Skin Cancer, Actinic Keratosis, Warts, and Bowen's Disease. Dr. Hammel is currently accepting new patients.

Jonathan Pewitt is a Dermatologist in Marietta, Georgia. Dr. Pewitt is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Notalgia Paresthetica, Melanoma, Giant Congenital Melanocytic Nevus, and Familial Atypical Multiple Mole Melanoma Syndrome. Dr. Pewitt is currently accepting new patients.

Marcus Goodman is a Dermatologist in Marietta, Georgia. Dr. Goodman is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Universal Acquired Melanosis, Liver Spots, Actinic Keratosis, and Neurocutaneous Melanosis. Dr. Goodman is currently accepting new patients.

Jared Friedman is a Dermatologist in Marietta, Georgia. Dr. Friedman is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Basal Cell Skin Cancer, Bowen's Disease, Neurocutaneous Melanosis, and Giant Congenital Nevus. Dr. Friedman is currently accepting new patients.

Adam Perry is a Dermatologist in Marietta, Georgia. Dr. Perry is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Basal Cell Skin Cancer, Squamous Cell Skin Carcinoma, Bowen's Disease, and Melanoma. Dr. Perry is currently accepting new patients.

Robert Harper is a Dermatologist in Marietta, Georgia. Dr. Harper is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Neurocutaneous Melanosis, Giant Congenital Melanocytic Nevus, Familial Atypical Multiple Mole Melanoma Syndrome, and Giant Congenital Nevus. Dr. Harper is currently accepting new patients.

Jason Arnold is a Dermatologist in Woodstock, Georgia. Dr. Arnold is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Squamous Cell Skin Carcinoma, Basal Cell Skin Cancer, Head and Neck Squamous Cell Carcinoma (HNSCC), and Spider Angioma. Dr. Arnold is currently accepting new patients.

Larissa Chismar is a Dermatologist in Woodstock, Georgia. Dr. Chismar is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). Her top areas of expertise are Liver Spots, Universal Acquired Melanosis, Neurocutaneous Melanosis, and Giant Congenital Melanocytic Nevus. Dr. Chismar is currently accepting new patients.

Janice Warner is a Dermatologist in Austell, Georgia. Dr. Warner is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). Her top areas of expertise are Multiple Familial Trichoepithelioma, Trichoepithelioma, Sebaceous Adenoma, and Syringoma. Dr. Warner is currently accepting new patients.

Diamondis Papadopoulos is a Dermatologist in Hiram, Georgia. Dr. Papadopoulos has been practicing medicine for over 44 years and is rated as an Advanced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Liver Spots, Universal Acquired Melanosis, Seborrheic Keratosis, and Warts.

Richard Arasi is a Dermatologist in Woodstock, Georgia. Dr. Arasi is rated as an Advanced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Nummular Eczema, Grover's Disease, Bowen's Disease, and Actinic Keratosis. Dr. Arasi is currently accepting new patients.

Spencer Hawkins is a Dermatologist in Marietta, Georgia. Dr. Hawkins is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Basal Cell Skin Cancer, Neurocutaneous Melanosis, Autosomal Recessive Hypotrichosis, and Giant Congenital Nevus. Dr. Hawkins is currently accepting new patients.

Kathleen Viscusi is a Dermatologist in Marietta, Georgia. Dr. Viscusi is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). Her top areas of expertise are Basal Cell Skin Cancer, Sunburn, Squamous Cell Skin Carcinoma, and Neurocutaneous Melanosis. Dr. Viscusi is currently accepting new patients.

Bruce Gould is a Hematologist Oncology specialist and a Hematologist in Marietta, Georgia. Dr. Gould is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Small Cell Lung Cancer (SCLC), Pleuropulmonary Blastoma, Lung Cancer, and Familial Colorectal Cancer. Dr. Gould is currently accepting new patients.

Loretta Davis is a Dermatologist in Kennesaw, Georgia. Dr. Davis has been practicing medicine for over 44 years and is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). Her top areas of expertise are Psoriasis, Actinic Keratosis, Plaque Psoriasis, and Eosinophilic Pustular Folliculitis. Dr. Davis is currently accepting new patients.

William Grubb is a Radiation Oncologist in Kennesaw, Georgia. Dr. Grubb is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). His top areas of expertise are Pleuropulmonary Blastoma, ALK-Positive Non-Small Cell Lung Cancer, Squamous Cell Lung Carcinoma, and Lung Adenocarcinoma. Dr. Grubb is currently accepting new patients.

Kendall Buchanan is a Dermatologist in Kennesaw, Georgia. Dr. Buchanan is rated as an Experienced provider by MediFind in the treatment of Head and Neck Squamous Cell Carcinoma (HNSCC). Her top areas of expertise are Actinic Keratosis, Kaposiform Hemangioendothelioma, Hemangioma, and Cerebral Cavernous Malformation. Dr. Buchanan is currently accepting new patients.