Dr. Gerard L. O'halloran graduated from the Mayo Medical School in 1986. He works in Northfield, MN and 1 other location and specializes in Otolaryngology. Dr. O'halloran is affiliated with Northfield Hospital & Clinics. He speaks English and Spanish.
Years in Practice: 29 Years
Languages Spoken: English, Spanish
Medical School: Mayo Medical School
Graduation Date: 1986
Hospital Affiliations: Northfield Hospital & Clinics
*This physician has multiple office locations. See Appointments for details.