Meet Your Physicians

The relationships we've developed over the last 10 years with patients, their families, and the community are among the highlights of our careers. Mara Dermatology is founded on prioritizing those relationships over faster, more numerous visits.

Fiona Rahbar, MD

Dr. Rahbar is a board-certified dermatologist and co-founder of Mara Dermatology. She completed undergraduate studies in Neuroscience and Behavioral Biology at the University of Pennsylvania and Emory University and earned her medical degree from Vanderbilt University School of Medicine. Her residency training in dermatology was with the University of Virginia, where she served as Chief Resident. Upon completion of training Dr. Rahbar gained experience in Virginia and NYC before building roots in South Carolina.  After years caring for patients both in private practice and then academic medicine at the Medical University of SC, Dr. Rahbar was ready to start Mara Dermatology.

In addition to providing quality care for her patients, Dr. Rahbar has published in medical journals and spoken at dermatology conferences. Her passion lies in caring for underserved populations, having volunteered internationally in Haiti and Uganda as well as locally at the Barrier Island Free Medical Clinic. Dr. Rahbar is also proficient in Spanish, which allows her a unique capability to serve the Hispanic population of the Charleston area.  

In addition to conventional medicine Dr. Rahbar has a deep interest in caring for the whole patient, not just symptoms or disease. Having completed the intensive Integrative Dermatology Certificate Program, she then went on to serve as lecturer and facilitator for the same program. In her free time she loves to spend time outdoors with her friends and family, including her two daughters and dog Luna. She is a certified yoga instructor and has an interest in integrative medicine.  Dr. Rahbar is a Fellow of the American Academy of Dermatology and a diplomate of the American Board of Dermatology

Joni Mazza-McCrann, MD

Dr. Mazza-McCrann is a board-certified dermatologist and co-founder of Mara Dermatology. Originally from Queens, NY, she earned her medical degree at Weill Cornell Medical College in New York City. She completed her internship and dermatology residency at The Mount Sinai Hospital, also in NYC, where she additionally served as Chief Resident. She began her academic career as a founding member of the Northwell Health Dermatology Department in Long Island NY, where she also functioned as Assistant Program Director. In 2015, Dr. Mazza relocated to Charleston, SC when she accepted a position at the Medical University of South Carolina. In addition to caring for patients, she worked closely with the residents and medical students and remains highly invested in their training and education as an Affiliate Clinical Assistant Professor for the University. She currently works for the Ralph H. Johnson VA Medical Center at the Naval Health Clinic Charleston and is proud to treat both active duty service men and women and veterans.  

Dr. Mazza has numerous publications in peer-reviewed medical journals. She has presented at medical conferences and has co-authored chapters in medical dermatology textbooks. She is a Diplomate of the American Board of Dermatology and a Fellow of the American Academy of Dermatology. She was awarded Best Dermatologist in Charleston in HealthLinks Charleston Magazine in 2021 and 2023. She was awarded Teacher of the Year by the MUSC Family Medicine Residents in 2023. She lives in Mount Pleasant with her husband and 3 children.

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