Seeking Accessible Patient Care In The Atlanta Area?

Providers

Joel Isom, MD

Internal Medicine Physician

Joel Isom, MD, is a board-certified internal medicine physician serving patients at CommunityMD in Atlanta and Newnan, Georgia. He is passionate about treating and caring for his patients. Dr. Isom’s journey began with a desire to become a veterinarian. However, as he experienced how disease was affecting his family, he found his passion for improving the health and wellness of people. He graduated from Meharry Medical College in Nashville, Tennessee, and completed his residency and training in the Meharry Internal Medicine Program. Dr. Isom embraces innovation in the practice of internal medicine. He values reaching the health and wellness goals of his patients. He pursues the process of identifying their needs and developing plans for patient wellness. Seeing his patients smile when together they have discovered what treatments have been most effective brings him a sense of satisfaction. Dr. Isom is from Thomson, Georgia, and moved to Atlanta to be closer to his family. He loves spending time with his wife, Dr. Erica Isom, who is also an internist. They enjoy going on vacation with their three children. He also enjoys Fantasy Football and a good laugh with the 90s sitcom Martin.

Natasha Williamson, AGNP-C

Nurse Practitioner

Natasha Williamson, AGNP-C, is an experienced, board-certified adult gerontology nurse practitioner at CommunityMD in Atlanta and Newnan, Georgia. She is certified by the American Association of Nurse Practitioners. Ms. Williamson’s most genuine desire is to foster and enhance a balanced and positive healing experience for her patients. She seeks to acquire a comprehensive evaluation of her patients by taking the time to engage them in all aspects of their health. She lives by the motto that “health is the true wealth.” Ms. Williamson began her clinical career as a registered nurse, completing her undergraduate studies at Florida Hospital College of Health Sciences in Orlando. She earned her master’s in nursing at Walden University in Minneapolis, Minnesota. Over her training, Ms. Williamson gained experience in various specialties, including cardiology, neurology, and long-term acute care. She also served as Hospital Nurse Educator. Ms. Williamson is licensed in Georgia to provide well-rounded health care to patients ranging from young adults to the elderly. Her scope of practice encompasses health promotion, disease prevention, diagnosis, and management of chronic health conditions across the aging span. Natasha lives in Stone Mountain, Georgia, and loves spending time with her husband and daughter.

Zavier Ash, MD

Board-Certified Family Practice Physician

Zavier Ash, MD, is a board-certified family practitioner with over 22 years of experience. Through his work at CommunityMD, Dr. Ash brings the communities of Atlanta and Newnan, Georgia, the health care they deserve. He dedicates his considerable skills to addressing and treating all your concerns. Dr. Ash’s journey began at Morehouse College in Atlanta, Georgia, where he obtained a bachelor of science in biology. His diligence and passion allowed him immediate acceptance into Meharry Medical College in Nashville, Tennessee, where he graduated with the highest honors. Following his initial education, Dr. Ash completed OBGYN and family medicine residencies at East Carolina University in Greenville, North Carolina. Dr. Ash continues to drive quality health care through his memberships with the American Medical Association and the American Academy of Family Physicians. When not enriching the lives of others in the CommunityMD office, Dr. Ash enjoys spending time outdoors. He loves gardening and farming, bass sportfishing, and tending to his livestock. If you’re looking to enhance your quality of life, there’s no better physician than Dr. Ash. Call the Atlanta or Newnan, Georgia, office today to schedule with Dr. Ash or book through the online portal.

Karen Guidry, AGNP-C

Nurse Practitioner

Access To Get You The Care You Deserve

Atlanta

South Atlanta

Tucker

Newnan

Our Physicians

Our NPs, PAs & Therapy Team

Melissa Bennett, ND, CTN, CNW

Restorative & Functional Medicine | Georgia Clinics

Dr. Melissa Bennett, ND is a naturopathic doctor with nearly two decades of experience in restorative and functional healthcare. She completed advanced studies in Predictive Health at Emory University, focusing on how genetics, lifestyle factors, and early biomarkers influence long-term wellness and disease prevention. This training enables her to integrate evidence-based science with holistic strategies that address root causes and support sustainable health restoration.

Dr. Bennett currently serves on two scientific advisory boards, contributing to research, product development, and health education. She also leads monthly national health education calls, where she shares practical, lifestyle-based strategies and evidence-informed insights for improving health outcomes. These roles keep her closely connected to advances in integrative and functional medicine.

Her expertise has been featured on national media platforms, including an appearance on the A&E Channel’s The Unexplained, where she assisted in resolving a complex medical case, and an interview with CBS discussing the Blood Type Diet. She is recognized for her ability to translate complex medical concepts into clear, actionable guidance.

Dr. Bennett’s clinical approach is deeply informed by her personal experience as a long-term breast cancer survivor who participated in the Herceptin clinical trial and underwent chemotherapy and radiation. This journey provides her with a unique understanding of chronic illness, recovery, and resilience, and reinforces her commitment to compassionate, individualized care.

Dr. Bennett is the founder of The Olive Leaf, a restorative healthcare practice serving patients throughout Georgia. Through structured health restoration programs, she helps patients regain energy, metabolic balance, neurological resilience, and overall vitality. These programs support individuals navigating a range of health challenges, including diabetes and metabolic dysfunction, cancer recovery, weight regulation, fertility optimization, brain and nervous system health, and chronic inflammatory conditions.

Her work is collaborative by design. Dr. Bennett co-manages patients alongside their existing healthcare providers, including medical doctors, oncologists, psychiatrists, therapists, dietitians, and pediatricians. Her care is intended to complement—not replace—conventional medical treatment, enhancing outcomes through lifestyle modification, targeted nutrition, functional testing, and restorative therapies.

Dr. Bennett defines success in healthcare not simply as symptom reduction, but as helping individuals rebuild resilience, clarity, and quality of life through personalized, whole-person care.

Click Here To Learn More About The Naturopathic Services Offered By Dr. Bennett.