After completing seven years of residency education, she then went on to further fellowship training in Perforator Flap Reconstruction. For this she trained with the renowned Dr. Robert Allen in New Orleans, becoming one of a select group of surgeons in the country who performs perforator flap breast reconstruction. Additionally, she completed a fellowship in Cosmetic Surgery with Dr. Donald Wood-Smith, further specializing in body contouring and facial cosmetic surgery.

She is an Associate Adjunct Surgeon at New York Eye and Ear Infirmary, and is also on staff at Montefiore Medical Center. In addition, Dr. Erhard also donates her time and expertise to Jacobi Medical Center, a Level 1 New York City Trauma Center here in the Bronx. She has presented at multiple national and international meetings, and has published in the Annals of Plastic Surgery, the Aesthetic Surgery Journal, and several texts concerning perforator flap breast reconstruction. Dr. Erhard is a recipient of the Leo M. Davidoff Award and the Montefiore Staff & Alumni Award for Outstanding Achievement of a House Officer.