Philadelphia Ear, Nose and Throat Associates: PENTA

Our Physicians


Our Physicians


Robert Thayer Sataloff, MD, DMA, FACS, FCCP

Laryngologist - Professional voice specialist

Dr. Sataloff is Professor and Chairman, Department of Otolaryngology-Head and Neck Surgery and Senior Associate Dean for Clinical Academic Specialties, Drexel University College of Medicine.  He is also Adjunct Professor in the department of Otolaryngology – Head and Neck Surgery at Thomas Jefferson University, as well as Adjunct Clinical Professor at Temple University and the Philadelphia College of Osteopathic Medicine; and he is on the faculty of the Academy of Vocal Arts.  He serves as Conductor of the Thomas Jefferson University Choir.  Dr. Sataloff is also a professional singer and singing teacher.  He holds an undergraduate degree from Haverford College in Music Theory and Composition; graduated from Jefferson Medical College, Thomas Jefferson University; received a Doctor of Musical Arts in Voice Performance from Combs College of Music; and he completed Residency in Otolaryngology - Head and Neck Surgery and a Fellowship in Otology, Neurotology and Skull Base Surgery at the University of Michigan.  Dr. Sataloff is Chairman of the Boards of Directors of the Voice Foundation and of the American Institute for Voice and Ear Research.  He also has served as Chairman of the Board of Governors of Graduate Hospital; President of the American Laryngological Association, the International Association of Phonosurgery, the Pennsylvania Academy of Otolaryngology – Head and Neck Surgery, and The American Society of Geriatric Otolaryngology, and in numerous other leadership positions.  Dr. Sataloff is Editor-in-Chief of the Journal of Voice; Editor-in-Chief of Ear, Nose and Throat Journal; Associate Editor of the Journal of Singing, and on the editorial boards of numerous otolaryngology journals. He has written over 1,000 publications, including 62 books, and he has been awarded more than $5 million in research funding.  He has invented more than 75 laryngeal microsurgical instruments distributed currently by Integra Medical, ossicular replacement prostheses produced by Grace Medical, and novel laryngeal prostheses with Boston Medical.  His medical practice is limited to care of the professional voice and to otology/neurotology.  Dr. Sataloff has developed numerous novel surgical procedures including total temporal bone resection for formerly untreatable skull base malignancy, laryngeal microflap and mini-microflap procedures, vocal fold lipoinjection, vocal fold lipoimplantation, and others.  Dr. Sataloff is recognized as one of the founders of the field of voice, having written the first modern comprehensive article on care of singers, and the first chapter and book on care of the professional voice, as well as having influenced the evolution of the field through his own efforts and through the Voice Foundation for nearly 4 decades.  Dr. Sataloff has been recognized by Best Doctors in America (Woodward White Athens) every year since 1992, Philadelphia Magazine since 1997, and Castle Connolly’s “America’s Top Doctors” since 2002.

Curriculum Vitae


Karen M. Lyons, MD

General otolaryngologist

Dr. Lyons is Clinical Associate Professor of Otolaryngology–Head and Neck Surgery in the Department of Otolaryngology–Head and Neck Surgery at Drexel University College of Medicine. She graduated from the University of Pennsylvania in 1979 after having received her undergraduate degree in mathematics from the University of Connecticut. She completed her residency in otorhinolaryngology at the Hospital of the University of Pennsylvania in 1983. Dr. Lyons became assistant professor of otolaryngology at Harvard Medical School/Massachusetts Eye and Ear Infirmary. In 1985, she returned to Philadelphia and has practiced at Pennsylvania Hospital, Northeastern Hospital,Graduate Hospital and Thomas Jefferson University Hospital. She has been associated with our office since 1996. Her publications include works on evaluation of flap perfusion and on vocal fold physiology.

Curriculum Vitae


Dean A. Drezner, MD


Dr. Dean A. Drezner, MD is Assistant Professor in the Department of Otolaryngology- Head and Neck Surgery at Drexel University College of Medicine. He has deep roots in Philadelphia. He received his B.A. at the University of Pennsylvania, his M.D. at Temple University Medical School and did his Otolaryngology residency at Temple University Hospital, finishing in 1989. He then "crossed the river" and practiced in New Jersey in both private and academic settings and was head of the division of Otolaryngology at Cooper Health System. He has been named "Top Doc" by US News and World Report, as well as in Philadelphia Magazine and in South Jersey Magazine numerous times.

Dr. Drezner's scope of practice includes adult, pediatric and geriatric ear,nose and throat care, thyroid surgery, sinus surgery, as well as evaluation and treatment of hearing loss, tinnitus, allergies, sleep apnea, hoarseness and swallowing disorders. He has a particular interest in patients with persistent or recalcitrant symptoms such as postnasal drip, unsteadiness and a sensation of a lump in the throat.

Curriculum Vitae

Aykut Unsal Photograph.jpg

Aykut A. Unsal, DO, MS


 Dr. Unsal is Assistant Professor of Otolaryngology – Head and Neck Surgery (anticipated) at Drexel University College of Medicine.  He completed his pre-medical education at Boston College where he studied biology, computer science and music.  Following his undergraduate studies, Dr. Unsal received a Masters degree at the University of Medicine and Dentistry of New Jersey during which time he also studied Biomedical Engineering at the New Jersey Institute of Technology.  He then received his medical degree and completed residency in Otolaryngology and Facial Plastic Surgery at the University of Medicine and Dentistry in Stratford, New Jersey (now known as Rowan University School of Osteopathic Medicine/Thomas Jefferson University Health System).

Following residency, Dr. Unsal completed an additional year of fellowship training in advanced nasal, sinus and skull base surgery at the Medical College of Georgia with world-renowned surgeon Dr. Stilianos Kountakis.  During fellowship, Dr. Unsal mastered cutting-edge techniques in endoscopic, minimally invasive surgery.  Dr. Unsal has published numerous articles in peer-reviewed journals in the field of Rhinology and has presented research at national conferences annually.

Dr. Unsal has focused his practice to the treatment of complex sinus and nasal diseases, skull base surgery, and facial plastic surgery (particularly rhinoplasty).  Beyond medicine, Dr. Unsal is also an avid software developer and is the founder of Scrubbed, a popular clinical app for medical professionals.  In his spare time, he enjoys the outdoors and traveling with his family.