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Our Team


Our physicians are:

  • Fellowship-trained, board-certified
  • Have national and international stature in the medical community
  • Specialists in EMG and neuromuscular disease
  • Published regularly in peer-reviewed journals

Eric L. LogigianEric L. Logigian, M.D.

Dr. Logigian is Program Director of the Clinical Neurophysiology Fellowship and Director of the EMG lab at the University of Rochester Medical Center. He also serves on the editorial board of Muscle & Nerve, a major neuromuscular journal. His research focus is primarily on electrodiagnostic methods for quantitative evaluation of patients with neuromuscular disorders particularly focal and generalized polyneuropathies. His clinical focus is in evaluation and treatment of patients with acquired polyneuropathies.

Emma CiafaloniEmma Ciafaloni, MD, FAAN, FANA
Attending Physician

Dr. Ciafaloni is a Professor of Neurology and Pediatrics who specializes in the diagnosis and treatment of Neuromuscular Diseases in adults and children. She is Co-Director of the MDA Neuromuscular Clinic and Program Director of the ACGME Accredited Neuromuscular Medicine Fellowship Program.

Her current commitments include improving the diagnosis and treatment of adult and pediatric patients with neuromuscular diseases, especially Duchenne Muscular Dystrophy, myasthenia gravis, ALS, limb girdle muscular dystrophies, myotonic dystrophy, FSHD, and spinal muscular atrophy. She has national and international expertise in conducting clinical trials in adult and pediatric neuromuscular diseases including Duchenne Muscular Dystrophy, Myasthenia Gravis, periodic paralyses, nondystrophic myotonias, myotonic dystrophy and FSHD. She has a clinical research interest in the best treatment of patients with Duchenne Muscular Dystrophy, the course and outcome of pregnancy in women with muscular dystrophies, and sleep disorders in neuromuscular diseases.

David HerrmannDavid N. Herrmann, M.B.B.Ch.
Attending Physician

Dr. Herrmann is a Professor of Neurology and Pathology, who specializes in the diagnosis and management of peripheral neuropathies. He is Unit Chief of the Neuromuscular Unit, Director of the University of Rochester (UR) Peripheral Neuropathy Clinic, and Cutaneous Innervation Laboratory, the UR Inherited Neuropathies Consortium Rare Disease Clinical Research Center and Chief of the Neuromuscular Disease Center. He has a clinical and research focus in Charcot Marie Tooth neuropathies (CMT), including outcome measures and biomarker developments and clinical trials of new therapies.

Michael StantonMichael Stanton, M.D.
Attending Physician

Dr. Stanton is Associate Professor of Neurology in the Neuromuscular division at the University of Rochester Medical Center. His clinical interests are in peripheral neuropathy and electrodiagnostic techniques. He is actively involved in teaching neuromuscular fellows in electrodiagnosis and peripheral neuropathy. He is co-investigator for the CMT database which characterizes the clinical and electrodiagnostic features of hereditary neuropathy. He has subspecialty board certifications in neuromuscular disease by the American Board of Neurology and Psychiatry, and in electrodiagnostic medicine by the American Board of Electrodiagnostic Medicine.

Raissa VillanuevaRaissa Villanueva, M.D., M.P.H.
Attending Physician

After medical school, Dr. Villanueva completed her neurology residency at the University of Rochester Medical Center (URMC) in 2009, followed by a Clinical Neurophysiology fellowship, which included training in nerve conduction studies, electromyography, and electroencephalography (EEG). She is board certified in both neurology and headache medicine.

Dr. Villanueva now leads URMC's General Neurology Division, with a clinical practice that focuses on the full range of neurologic disorders. She has established herself as a national leader in neurology practice, being appointed in 2013 to the American Academy of Neurology's Practice Committee. In addition to her clinical work and leadership responsibilities, she is actively involved in teaching medical students, residents, and advanced clinical fellows.

Chad HeatwoleChad Heatwole, M.D.
Attending Physician

Chad Heatwole, MD, MS-CI is a neuromuscular clinician and researcher from the University of Rochester. He has an engineering degree from Virginia Tech, a medical degree from the Medical College of Virginia, a master's degree in clinical investigation, and has completed a University of Rochester neurology residency, electrophysiology fellowship, and NIH-funded neuromuscular experimental therapeutics fellowship. His research funding has included a National Institute of Arthritis and Musculoskeletal and Skin Diseases K23 award, a Muscular Dystrophy Association TRIG award, and a New York State ECRIP award (among other awards).

Johanna HamelJohanna Hamel, M.D.
Attending Physician

Johanna Hamel, MD completed medical school at the Martin-Luther-University in Halle-Wittenberg, Germany, and worked as a postdoctoral researcher studying visual cognition at the Charité in Berlin, Germany. She completed neurology residency at the University of Rochester in June 2016 and is currently a neuromuscular fellow. Her research interests include muscular dystrophies, in specific myotonic dystrophy type 1 and type 2 and nutritional neuropathies.


Peter CreighPeter Creigh M.D.
Attending Physician

Dr. Creigh completed his neurology residency training at the University of Rochester and is now a clinical neuromuscular fellow. He has a broad clinical interest within the field of neuromuscular medicine, treating all types of neuromuscular diseases. Additional, he is actively involved in neuromuscular clinical research and will be pursuing additional training in experiential therapeutics in the coming year.


Sushma YerramSushma Yerram M.D.

Sushma Yerram is a fellow in the clinical neurophysiology program at the University of Rochester Medical Center.


Our EMG technicians are experienced and fully trained. They are always available to help patients.

If you have questions about EMG, our administrative staff are always available. They can help you with flexible scheduling options. In addition, three or four fellows or resident physicians are on staff.

Erin CollinsErin Collins
Administrative Assistant

Erin Collins is the Neuromuscular Disease Center’s administrative assistant. She graduated from SUNY Oswego in 2012 with a degree in Health Science and completes her Masters in Healthcare Administration from RIT in 2017.    She has worked in the Neuromuscular Disease Center since 2014 coordinating patient care using a multi-disciplinary approach.

Michele FurgusonMichele Furguson
Clinical Technologist

Michele Ferguson has worked in the Neuromuscular Disease Center since 1999 and is currently the assistant supervisor of the EMG lab. She performs routine and complex nerve conduction studies on children and adults. She graduated from Niagara County Community College in 1998 with an Associate’s degree in Electroneurodiagnostic Technology. She then became a registered EMG tech in 2003. She has served on the AAET national EMG tech board as secretary treasurer and on the examination committee.

Nayeli GarciaNayeli Garcia
Physician Support Specialist

Nayeli Garcia has worked in the Neuromuscular Disease Center since 2015, and 6 years overall in the Neurology Department. She graduated from Monroe Community College with an Associate’s Degree in Liberal Arts in 2005. She schedules nerve conduction studies, biopsies and other various clinic appointments for the Neuromuscular Disease Center.

Julie LanningJulie Lanning
Clinical Technologist

Julie Lanning has worked in the Neuromuscular Disease Center since 2015. She received her bachelor’s in Health Science Studies from Quinnipiac University in 2012. She performs nerve conductions studies on adults and children with neuromuscular disease.


Karen LeeKaren Lee
Administrative Assistant

Karen Lee is an administrative assistant for the Neuromuscular Disease Center. She joined the Neuromuscular Disease Center in 2007. She is the program coordinator for our ACGME fellowships Clinical Neurophysiology and Neuromuscular Medicine. Karen has also coordinated several patient day meetings that were for Facioscapulohumeral Muscular Dystrophy (FSHD) and Myotonic Dystrophy.

Shareen MarquezShareen Marquez
Clinical Technologist

Shareen Marquez has worked in Neuromuscular Disease Center since 2015. Ms Marquez received her bachelor’s degree from SUNY Brockport in 2012 in business and healthcare administration. She provides nerve conduction studies on adults and children with neuromuscular disease. She has been a part of the Neurology group since 2012.

Angela TevelsAngela Tevels
Secretary IV

Angela Tevels has been with the Neuromuscular Disease Center for 2 years. She attended college at SUNY Potsdam for psychology and a minor in criminal justice. Angela helps coordinate appointments for EMG and Neuromuscular. She also helps assist patients with getting authorizations that are required for insurance needs.