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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Gerard O'Halloran, Otolaryngologist is Excellent. Dr. O'Halloran has been reviewed by 5 patients who have provided 3 comments. The rating is 4 out of 4 stars.

Patient Ratings
Ease of Appointment 3.8
Promptness 3.8
Courteous Staff 4.0
Accurate Diagnosis 4.0
Bedside Manner 4.0
Spends Time with Me 4.0
Follows Up After Visit 4.0

Specialties & Research

Dr. Gerard O'Halloran, MD is board certified in Otolaryngology and Otolaryngology - Sleep Medicine.

  • He has special expertise in 1 area:
  • Sleep Apnea (Sleep Apnea Syndromes)

Education & Awards

Dr. O'Halloran graduated from Mayo Medical School, Rochester. He has 2 awards.

Patients' Choice Award (2011, 2013)
Compassionate Doctor Recognition (2011, 2013)


Dr. O'Halloran has 5 hospital affiliations:

  • Fairview Ridges Hospital 
  • Northfield Hospital 

> > > > Dr. Gerard O'Halloran, MD

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Additional Information
Dr. Gerard Louis O'Halloran MD is a male Otolaryngologist, has 25 years of experience and practices in Otolaryngology and Sleep Medicine.
Where does Dr. Gerard L. O'Halloran practice?
Dr. Gerard O'Halloran has 4 office locations.
Dr. Gerard O'Halloran practices Otolaryngology and Sleep Medicine near Willmar, MN.
Additional practice locations include: Faribault, MN and Owatonna, MN.
See Willmar Otolaryngologists.