The physicians of Otolaryngology Group, Ltd are well-recognized for the care they provide their patients as well as for their contributions to their specialty.  U.S. News & World Report and Castle Connolly consistently ranks them among the “best doctors in the United States.”  They have published numerous articles and book chapters in peer-reviewed literature.  These physicians continually lecture and teach their peers locally, regionally and nationally while helping with the development of today’s medical students and residents.  They have and continue to perform both clinical and basic science research in various areas such as nerve-muscle reinnervation and vocal cord implants among many others. Otolaryngology Group physicians volunteer in their local communities and participate in medical mission trips, treating patients and teaching around the world including Africa, the South Pacific and Central America.


Dr. Charles Z. Weingarten, MD was born and raised in Elizabeth, New Jersey.  He received his B.S. degree from the University of Rochester and his M.D. degree from Tulane University.  Dr. Weingarten completed his otolaryngology, head and neck surgical residency training at Northwestern Memorial Hospital in 1968.  Upon the completion of his residency, Dr. Weingarten served for two years in the United States Air Force.  As a founding partner of Otolaryngology Group, Ltd., Dr. Weingarten is a board- certified otolaryngologist and has been practicing general otolaryngology with a focus on the diagnosis and treatment of ear diseases since 1970.  For the past 7 years Dr. Weingarten has participated in numerous pro bono medical missions in developing countries around the world where he trains local physicians in the diagnosis and treatment of diseases of the ear, including surgery.  He also provides diagnostic and treatment services for newborn and infant children referred from screening programs in these countries.  For the past several years he has also provided voluntary clinic coverage at the Lake County Medical Center in Highland Park.



Dr. Allan P. Wolff, MD was born and raised in Granite City, Illinois.  He received his B.S. degree from the University of Illinois and his M.D. degree from Washington University in St. Louis, Missouri.  Dr. Wolff completed his otolaryngology, head and neck surgical training at Barnes Hospital in St. Louis.  Upon completion of his medical training, Dr. Wolff served as a surgeon for two years in the United States Army including one year in Vietnam.  Dr. Wolff is board certified in otolaryngology and has been practicing medicine in Chicago’s Northern suburbs and at North Shore Hospital since 1974.  His specialty is out patient office based adult otolaryngology.






Dr. Jeffrey P. Schonberg, MD was born and raised in New York.  He received his B.S. degree from Earlham College and his M.D. degree from the University of Cincinnati’s College of Medicine.  He completed his Otolaryngology-Head and Neck Surgery residency training at Northwestern Memorial Hospital.   Following a combined fellowship through Vanderbilt Hospital in Nashville and Cook County Hospital in Chicago, Dr. Schonberg began private practice as a board-certified Otolaryngologist on Chicago’s North Shore in 1988.  Dr. Schonberg practices the full spectrum of adult and pediatric general otolaryngology, head and neck surgery. Dr. Schonberg's special fields of concentration include medical and surgical treatment of sinus disorders (including current state of the art computerized 'image guided' endoscopic sinus surgery), medical and surgical treatment of nasal obstruction, sleep and snoring disorders. Dr. Schonberg has also participated in the training of decades of past residents within the field of Otolaryngology Head and Neck Surgery, and continues his academic affiliation with Northwestern University’s Medical School.




Dr. Steven J. Charous received his B.S. from the University of Illinois, Champaign and his M.D. from the University of Chicago. His internship training was completed at the University of Chicago Hospitals and residency training performed at Vanderbilt University.  Dr. Charous received fellowship training in the medical and surgical management of voice disorders at Vanderbilt University.  A board- certified physician since 1996, Dr. Charous’s primary areas of interest are voice and swallowing disorders, surgical management of tumors of the thyroid, neck and throat, as well as the surgical management of snoring and obstructive sleep apnea.  Academically, he has published numerous articles and book chapters as well as presented at local, national and international meetings.  Dr. Charous continues to teach medical students and residents and performs research on nerve regeneration.  He is actively involved in global health and routinely volunteers on medical mission trips every year.



Dr. Siva Elangovan earned his medical degree from the New York University School of Medicine, New York, NY and completed his residency in otolaryngology at the University of Iowa Hospitals and Clinics, Iowa City, IA.  Dr. Siva Elangovan’s practice encompasses all areas of general Ear, Nose and Throat for both adult and pediatric patients. Experienced in advanced sinus techniques (image-guided sinus surgery and balloon sinuplasty), Dr. Elangovan offers the latest technology to correct some of the most difficult nasal and sinus problems.  He is Board Certified by the American Board of Otolaryngology.