Gerard L. O'Halloran, MD
Otolaryngology Physician · Owatonna, MN
Gerard L. O'Halloran, MD is an otolaryngology physician with a practice address in Owatonna, Minnesota, and NPI 1184684839, issued on Mar 26, 2006. Check the license (Minnesota 30984, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Gerard L. O'Halloran
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 30984 MN
Self-reported in NPPES; status is on the state search - Practice location
- 134 Southview St, Owatonna, MN 55060
- Phone
- (507) 451-1120
- Enumerated
- Mar 26, 2006
- Record last updated
- Mar 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (507) 444-6287
- Medicaid ID
- 419200100 MN
- Medicare enrollment
- Enrolled (PECOS I20040927000597); accepts Medicare assignment
- Medical or professional school
- Mayo Medical School, 1986
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 221 in Minnesota → Look up another NPI →
Also registered at 134 Southview St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gerard L. O'Halloran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 30984Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average otolaryngology physician in 2024
225 Medicare Part D claims for 98 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate38 claims
- Famotidine26 claims
- Prednisone26 claims
- Cefuroxime16 claims
- Triamcinolone Acetonide13 claims
- Amoxicillin12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital affiliation
- Northfield HospitalLakeville, MN · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Gerard L. O'Halloran among 221 otolaryngology physician records in Minnesota
Gerard L. O'Halloran, MD is one of 221 otolaryngology physician records with a practice address in Minnesota. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 48% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1986 · median 2006 among the 155 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Minnesota
There are 221 otolaryngology physician records in Minnesota.
All 221 in Minnesota → Every provider in Owatonna → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Gregory Jones, MDOwatonna, MN 550601427019637
- Keith Becker, MDRed Wing, MN 550661962465203
- Brian Coyle, MDRed Wing, MN 550661598732836
- Matthew Patterson, M.D.Mora, MN 550511457339996
- Inell Rosario, MDInver Grove Heights, MN 550761104862523
- John Young, M.D.St Mary S Pt, MN 550431629208558
- Holly Boyer, MDStillwater, MN 550821467438424
- Bruce Dennison, MDStillwater, MN 550821871578393
Common questions
What is Gerard L. O'Halloran, MD's NPI number?
Gerard L. O'Halloran, MD's National Provider Identifier (NPI) is 1184684839, issued on Mar 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gerard L. O'Halloran, MD located?
The NPPES record lists a practice address at 134 Southview St, Owatonna, MN, 55060. Phone: (507) 451-1120. Providers update this record themselves, so call before visiting.
How can I verify Gerard L. O'Halloran, MD's license?
NPPES lists Minnesota license number 30984, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gerard L. O'Halloran, MD prescribe under Medicare Part D?
In 2024, Gerard L. O'Halloran, MD had 225 Medicare Part D claims for 98 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.