Michael D. Lieberman, M.D.

Lisa Gfrerer is Assistant Professor in Plastic and Reconstructive Surgery at Weill Cornell Medicine (WCM). She received her MD degree at the Medical School of Vienna prior to completing a PhD in Genetics at the Harvard Stem Cell Institute. She graduated from the Harvard Integrated Plastic Surgery Residency Program, and completed the Advanced Peripheral Nerve and Microsurgery at the Massachusetts General Hospital (MGH). Clinically, her focus is peripheral nerve surgery including headache surgery, chest reinnervation after transgender mastectomy, breast reinnervation after cancer mastectomy, thoracic outlet decompression, facial nerve reconstruction, as well as advanced nerve reconstruction (TMR, RPNI, nerve transfers, free tissue transfer, nerve decompression, tarsal tunnel release) for restoration of motor and sensory function after iatrogenic and accidental injury in any body part. She has built a multi- institutional research program for headache surgery, breast/chest reinnervation, as well as functional nerve disorders and nerve pain. As an affiliate of the Massachusetts Institute of Technology (MIT) she has further focused on innovation and device development to enhance peripheral nerve regeneration. Lastly, she is on the board of the Migraine Surgery Society and has served on the board of the American Society of Plastic Surgery. She is a member of the American Society of Peripheral Nerve.

Dr. Mark S. Pecker is an Attending Physician at NewYork-Presbyterian Hospital / Weill Cornell Medical Center (NYPH-WCMC) and is a Professor of Clinical Medicine and a Professor of Clinical Medicine in Physiology and Biophysics at Weill Cornell Medical College. He received his MD from New York University School of Medicine in 1977 and completed his residency in Internal Medicine at the University of Texas Southwestern Affiliated Hospitals, where he served as Chief Resident. He is certified in Internal Medicine by the American Board of Internal Medicine and a Fellow of the American College Physicians.Dr. Pecker is an American Society of Hypertension Hypertension Specialist with expertise in autonomic dysfunction, aortic dissection and secondary and endocrine hypertension. Dr. Pecker has a passion for medical training. He served as the Program Director of the Internal Medicine Residency at NYPH-WCMC for 15 years. He remains active in teaching residents and medical students in New York, as well as at Hamad General Hospital and Weill Cornell Medical College in Qatar. He helps supervise the yearly International Case Discussion Summer School in Munich, Germany, in coordination with the medical faculties of the Technical University of Munich and Ludwig Maxmillian University.At Weill Cornell he is an Associate Program Director of the Tri-Institution MD-PhD Program. He also serves as a Chair on the Translation Research Advisory Committee and as the Clinical Sciences Pathway Exploratory Advisor for the Area of Concentration Program at Weill Cornell Medicine.

Dr. Michael Alfonzo is an Assistant Professor of Clinical Emergency Medicine and Clinical Pediatrics at Weill Cornell Medicine. Dr. Alfonzo completed his medical degree at Georgetown University School of Medicine and his Pediatrics residency training at NewYork-Presbyterian Weill Cornell Medical Center. Following his residency, Dr. Alfonzo completed his fellowship in Pediatric Emergency Medicine at Yale-New Haven Children’s Hospital. Dr. Alfonzo practices Pediatric Emergency Medicine at NYP-Weill Cornell Medical Center and NYP-Lower Manhattan Hospital.Dr. Alfonzo is also the Director of the Pediatric Emergency Medicine-Global Health Fellowship Track.