NPPES file of Aug 9, 2026

Erin K. O'Brien, MD

Otolaryngology Physician · Rochester, MN

Erin K. O'Brien, MD is an otolaryngology physician with a practice address in Rochester, Minnesota, and NPI 1891836557, issued on Feb 8, 2007. Check the license (Minnesota 54738, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891836557
Name
Erin K. O'Brien
Credential
MD
Primary taxonomy
Otolaryngology Physician 207Y00000X
License numbers
54738 MN
37908 IA
R-6607 IA
Self-reported in NPPES; status is on the state search
Practice location
200 1St St SW, Rochester, MN 55905
Phone
(507) 284-2511
Enumerated
Feb 8, 2007
Record last updated
Aug 19, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120201001012); accepts Medicare assignment
Medical or professional school
University Of Pittsburgh School Of Medicine, 2000
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 1St St SW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Timothy Aadland, M.D.Diagnostic Radiology Physician1780662783
  2. Christopher Aakre, MDInternal Medicine Physician1508151663
  3. Kathryn Aaro, P.T.Physical Therapist1619360666
  4. Danielle Aase, MDReproductive Endocrinology Physician1316524135
  5. Uzoamaka Abajue, PHARMDPharmacist1982335295
  6. Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246

Verify Erin K. O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 54738
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Minnesota license search

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52% fewer Medicare Part D claims than the average otolaryngology physician in 2024

261 Medicare Part D claims for 90 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Erin O'Brien261
  2. Specialty average541

Most prescribed

  1. Ipratropium Bromide85 claims
  2. Budesonide41 claims
  3. Amoxicillin-Clavulanate Potass23 claims
  4. Mupirocin22 claims
  5. Azithromycin14 claims
  6. Fluticasone Propionate13 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.

Industry payments in 2024: $83.95

1 payment: food and beverage; the largest payer was Neurent Medical Limited. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Erin O'Brien$83.95
  2. Specialty average$1,922.50

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Mayo ClinicRochester, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Erin K. O'Brien among 221 otolaryngology physician records in Minnesota

Erin K. O'Brien, 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 2007, is newer than 52% of them.

  • NPI issued2007 · 52% of these records are older, 40% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2000 · median 2006 among the 155 with a school on file
  • Record last updated2020 · 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.

The 8 otolaryngology physician records with the nearest ZIP codes

  1. Daniel Blum, M.D.Rochester, MN 559051700862943
  2. Colin Driscoll, M.D.Rochester, MN 559051174593321
  3. Luis Garcia, M.D.Rochester, MN 559051295705309
  4. Holger Gassner, M.D.Rochester, MN 559051386621522
  5. Ray Gustafson, M.D.Rochester, MN 559051174502181
  6. Grant Hamilton, MDRochester, MN 559051841273281
  7. Laura Iuga, M.D.Rochester, MN 559051558331793
  8. Jan Kasperbauer, M.D.Rochester, MN 559051003893355

Common questions

What is Erin K. O'Brien, MD's NPI number?

Erin K. O'Brien, MD's National Provider Identifier (NPI) is 1891836557, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Erin K. O'Brien, MD located?

The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.

How can I verify Erin K. O'Brien, MD's license?

NPPES lists Minnesota license number 54738, 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 Erin K. O'Brien, MD prescribe under Medicare Part D?

In 2024, Erin K. O'Brien, MD had 261 Medicare Part D claims for 90 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.