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 Squamous Cell Skin Carcinoma. His top areas of expertise are Anal Cancer, Posterior Fossa Tumor, Primitive Neuroectodermal Tumor (PNET), and Pleuropulmonary Blastoma.

Jared Friedman is a Dermatologist in Marietta, Georgia. Dr. Friedman is rated as an Advanced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. 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.

Jason Arnold is a Dermatologist in Woodstock, Georgia. Dr. Arnold is rated as an Advanced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. 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.

Ji Koo is a Dermatologist in Woodstock, Georgia. Dr. Koo is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. 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.

Dr. Kimberly Nicholson is originally from central Florida, where she completed her undergraduate degree in Interdisciplinary Natural Sciences and graduated summa cum laude at the University of South Florida in 2003. She then moved to Atlanta where she received her medical doctorate from Emory University School of Medicine in 2007. Following her medical training, she completed an internship in Internal Medicine as well as a residency in Dermatology at Northwestern University in Chicago, IL, where she also served as chief resident. She pursued additional subspecialty training in dermatopathology at the University of Texas M.D. Anderson Cancer Center before settling in Roswell, GA. Prior to joining Atlanta North Dermatology, Dr. Nicholson practiced dermatopathology for three years in the Atlanta area. Dr. Nicholson is on staff at Piedmont Hospital in Atlanta and is board certified by the American Board of Dermatology in both dermatology and dermatopathology.During both her training and practice, Dr. Nicholson has been actively involved in multiple professional organizations as well as the Atlanta dermatology community. She is the author of several publications and has lectured both locally and nationally on various topics, including cutting edge techniques for the diagnosis of melanoma. She specializes in general dermatology, dermatologic surgery, and cosmetic dermatology, and has a particular interest in medical dermatology and melanoma detection. Dr. Nicholson is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Giant Congenital Melanocytic Nevus, Giant Congenital Nevus, Familial Atypical Multiple Mole Melanoma Syndrome, and Neurocutaneous Melanosis.

Mark Chastain is a Dermatologist in Marietta, Georgia. Dr. Chastain is rated as an Advanced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. 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.

Marcus Goodman is a Dermatologist in Marietta, Georgia. Dr. Goodman is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. His top areas of expertise are Universal Acquired Melanosis, Liver Spots, Actinic Keratosis, and Neurocutaneous Melanosis. Dr. Goodman 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 Squamous Cell Skin Carcinoma. His top areas of expertise are Basal Cell Skin Cancer, Actinic Keratosis, Warts, and Bowen's Disease. Dr. Hammel is currently accepting new patients.

Jacqueline Flandry is a Dermatologist in Marietta, Georgia. Dr. Flandry is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Neurocutaneous Melanosis, Familial Atypical Multiple Mole Melanoma Syndrome, Giant Congenital Melanocytic Nevus, and Giant Congenital Nevus.

Jonathan Pewitt is a Dermatologist in Marietta, Georgia. Dr. Pewitt is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. 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.

Meera Brahmbhatt is a Dermatologist in Marietta, Georgia. Dr. Brahmbhatt is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Familial Atypical Multiple Mole Melanoma Syndrome, Syringoma, Sebaceous Adenoma, and Syringocystadenoma Papilliferum. Dr. Brahmbhatt is currently accepting new patients.

Jennifer Jones is a Dermatologist in Marietta, Georgia. Dr. Jones is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Familial Atypical Multiple Mole Melanoma Syndrome, Giant Congenital Melanocytic Nevus, Giant Congenital Nevus, and Neurocutaneous Melanosis. Dr. Jones 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 Squamous Cell Skin Carcinoma. 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.

Jamie Groh is a Dermatologist in Marietta, Georgia. Dr. Groh has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Neurocutaneous Melanosis, Familial Atypical Multiple Mole Melanoma Syndrome, Giant Congenital Nevus, and Giant Congenital Melanocytic Nevus. Dr. Groh is currently accepting new patients.

Mark Knautz is a Dermatologist in Marietta, Georgia. Dr. Knautz is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. His top areas of expertise are Neurocutaneous Melanosis, Seborrheic Keratosis, Warts, and Giant Congenital Melanocytic Nevus. Dr. Knautz is currently accepting new patients.

Elizabeth Richwine is a Dermatologist in Marietta, Georgia. Dr. Richwine is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Neurocutaneous Melanosis, Familial Atypical Multiple Mole Melanoma Syndrome, Giant Congenital Nevus, and Giant Congenital Melanocytic Nevus. Dr. Richwine 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 Squamous Cell Skin Carcinoma. 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.

Larissa Chismar is a Dermatologist in Woodstock, Georgia. Dr. Chismar is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. 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.

Jennifer Buckley is a Dermatologist in Marietta, Georgia. Dr. Buckley is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Neurocutaneous Melanosis, Giant Congenital Nevus, Familial Atypical Multiple Mole Melanoma Syndrome, and Giant Congenital Melanocytic Nevus. Dr. Buckley is currently accepting new patients.

Gena Volas is a Hematologist and an Oncologist in Marietta, Georgia. Dr. Volas is rated as an Experienced provider by MediFind in the treatment of Squamous Cell Skin Carcinoma. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Astrocytoma, and Gliosarcoma. Dr. Volas is currently accepting new patients.