Dr. John Oneill is an ENT doctor, or otolaryngologist, in Holyoke, MA. He treats conditions that affect the structures of the head and neck.
Dr. John Oneill graduated from St. Louis College of Physicians and Surgeons in 1970.
Dr. Oneill has one office in Massachusetts where he specializes in ENT / Otolaryngology and Allergy / Immunology.
As an ear, nose & throat specialist, otolaryngologist Dr. John Oneill offers medical and surgical care for patients suffering from complications, diseases and disorders of the head and neck – including the ears, nose and throat. Dr. Oneill may treat a variety of disorders that affect upper-airway breathing, speech, swallowing, and balance and hearing, among other functions. Common conditions treated by an otolaryngologist may include post-nasal drip, asthma, and ear infections.
As an allergist / immunologist in Holyoke, Dr. John Oneill offers specialized care for allergic reactions and immunological disorders in patients of all ages. Dr. Oneill may treat and manage conditions like asthma, hives, and a range of allergic reactions like environmental or food allergies. He may also treat rhinitis & sinusitis, as well as other disorders that affect the body's immune system.
Please Note: The information displayed below is sourced from the 2014 Medicare Physician and Other Supplier National Provider Identifier (NPI) Aggregate Report. It's important to remember that the statistics below are not inclusive of all patients treated by Dr. Oneill, but only those who participate in Medicare.