Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Gerard L O'Halloran, MD

Individual provider Otolaryngology Physician · NPI 1184684839

Gerard L O'Halloran, MD is an Otolaryngology in Owatonna, Minnesota. Graduated from Mayo Medical School in 1986, 40 years ago. Practices with Northfield Hospital, a 117-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
40
Trained at
Mayo Medical School
Licensed in
MN
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

134 Southview St
Owatonna, MN 55060-3241
Phone: (507) 451-1120
Fax: (507) 444-6287
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 30984 (MN)

Record details

NPI number1184684839
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 26, 2006
Last updated in NPPESMarch 4, 2021
Certification dateMarch 4, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOTOLARYNGOLOGY
Medical schoolMAYO MEDICAL SCHOOL
Graduated 1986 (40 years in practice)
Group practice Northfield Hospital — 117 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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