Dr. Erin K. O'Brien, MD

  • Rochester, MN
  • Otolaryngologist
NPI1891836557PAC ID1355440926
Medicare services, 2024
459
Medicare patients, 2024
191
Part D claims, 2024
261
Publications
43
Hospital affiliations
1
Practice address
200 First Street SW, Rochester, MN 55905
Practice phone
Call (507) 284-5968
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Breast Diagnostic Clinic

Mammography / Breast Imaging Center · Rochester, Minnesota

See all 5 affiliations

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Dr. Erin K. O'Brien is an otolaryngologist in Rochester, Minnesota

Dr. O'Brien practices at Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota.

Dr. O'Brien's NPI, 1891836557, was assigned on February 8, 2007. Dr. O'Brien graduated from University of Pittsburgh School of Medicine in 2000. Dr. O'Brien's Minnesota license number on file is 54738.

NPI and contact details
Medicare PAC ID
1355440926
NPI enumeration date
February 8, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(507) 284-5968
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
52
Medical school graduation
2000

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Erin K. O'Brien practices at Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota

Dr. O'Brien's primary practice is Mayo Clinic Breast Diagnostic Clinic, at 200 First Street SW, Rochester, MN 55905. The practice phone is (507) 284-5968.

  • Mayo Clinic Breast Diagnostic Clinic
    200 First Street SW, Rochester, MN 55905Phone(507) 284-5968

Source: Dmand AI Affiliation Data

Dr. Erin K. O'Brien is affiliated with 4 sites of care and 1 medical group

Dr. O'Brien's primary practice is Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota. Dr. O'Brien is also affiliated with Mayo Clinic Hospital, Saint Marys Campus. The medical group on file is Mayo Clinic. Dmand AI also links Dr. O'Brien to 1 more clinical lab and 1 hospice, each named with a free account. Dr. O'Brien's employer is on file too: a breast imaging center.

See all 5 affiliations for Dr. O'Brien

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Erin K. O'Brien's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Brien practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mayo Clinic Breast Diagnostic ClinicAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Erin K. O'Brien is one of 193 otolaryngologists in Minnesota

Otolaryngology is Dr. O'Brien's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. O'Brien is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery. Dmand AI has Dr. O'Brien's licenses on file in 3 states: Minnesota, Iowa and Pennsylvania.

Specialties and state licenses

  • Otolaryngology, MinnesotaPrimaryLicense 54738 · 2011 to 2025 · taxonomy 207Y00000X
  • Iowa licenseLicense R-6607 · 2008 to 2026
  • Pennsylvania license2000 to 2001

Clinical focus

Dmand AI lists acute sinusitis, chronic nasal allergies, chronic sinusitis, endoscopic sinus surgery and larynx and vocal cord disease among the conditions Dr. O'Brien treats.

Otolaryngologists near Dr. O'Brien

Counts of otolaryngologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Erin K. O'Brien billed Medicare for 459 services in 2024

CMS data shows 459 Medicare services from Dr. O'Brien across 11 procedure codes in 2024, for 191 Medicare patients. Medicare paid $65,830 for them.

Medicare services, 2024459
Medicare patients191
Paid by Medicare$65,830
Procedure codes11

Dr. O'Brien's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 2822024: 3058%
Office and hospital visits
2023: 1472024: 1545%

Where Dr. O'Brien's Medicare services took place, 2024

  • In an office37983%
  • In a facility8017%

Dr. O'Brien compared with the Minnesota median for otolaryngologists, 2024

  • Dr. O'Brien
  • Minnesota median
Medicare services
459vs 2262.0 times
Medicare patients
191vs 15622% above
Part D claims
209vs 13061% above

Medians across 184 otolaryngologists in Minnesota with Dmand AI profiles that report each measure.

Dr. O'Brien's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. O'Brien

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Brien and other otolaryngologists in Minnesota.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Erin K. O'Brien treated 191 Medicare patients in 2024, average age 72

CMS counts 191 Medicare patients who saw Dr. O'Brien in 2024. The largest group is 65 to 74, with 107 patients. 68% of them have high cholesterol, and 66% have high blood pressure. Their average risk score is 1.41, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. O'Brien's median patient age at 68, with 58% women.

Medicare patients, 2024191
Average age72
Average risk score1.41

Dr. O'Brien's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. O'Brien's Medicare patients by sex, 2024

  • Women8947%
  • Men10253%

Chronic conditions among Dr. O'Brien's Medicare patients, 2024

  1. High cholesterol68%
  2. High blood pressure66%
  3. Arthritis45%
  4. Asthma35%
  5. Ischemic heart disease29%
  6. Chronic kidney disease25%
  7. Diabetes25%
  8. Mood disorders24%

Share of Medicare patients with each condition. A patient can have several.

Dr. O'Brien's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women58%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Erin K. O'Brien wrote 261 Medicare Part D claims in 2024

In 2024, Dr. O'Brien wrote 261 Medicare Part D claims for 90 patients. 93% of them were for generic drugs. CMS names the drug for 209 of them, across 7 drugs with 11 or more claims each, at $11,985 in total drug cost. In 2023, CMS named 93 claims across 4 drugs.

Part D claims, 2024261
Drugs named by CMS7
Total drug cost$11,985
Part D patients90

Dr. O'Brien's Part D claims by kind of drug, 2024

  • Generic244 claims93%
  • Brand-name17 claims7%

Dr. O'Brien's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. O'Brien's Part D claims, 2024

  • Antibiotics24%63 of 261 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 932024: 209125%

Drugs named by CMS: 7 in 2024, 4 in 2023.

See all prescribing by Dr. O'Brien

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Erin K. O'Brien offers telehealth to Medicare patients

Dr. O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. O'Brien as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Erin K. O'Brien has 43 publications on record

Dmand AI links 43 papers to Dr. O'Brien, published from 2012 to 2024. 2021 was the busiest year, with 7. The most frequent topics are Endoscopy, Rhinitis and Sinusitis. Dr. O'Brien has published most often in Int Forum Allergy Rhinol. Dr. O'Brien's most frequent co-authors are Garret Wayne Choby, MD, Janalee Kae Stokken, MD and Jeffrey R. Janus, MD.

Papers43
Years published2012 to 2024

Dr. O'Brien's papers by year, 2015 to 2024

Topics Dr. O'Brien writes about most

  • Endoscopy
  • Rhinitis
  • Sinusitis
  • Asthma
  • Tomography, X-Ray Computed
  • Nasal Polyps
  • Pituitary Neoplasms
  • Aspirin

Dr. O'Brien's most frequent co-authors

Recent publications by Dr. O'Brien

See all 43 publications and co-authors

See who Dr. O'Brien researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Brien works with, so you can find a warm path to the right otolaryngologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Erin K. O'Brien received $1,358 in industry payments from 2016 to 2025

CMS Open Payments shows 16 general payments to Dr. O'Brien from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Neurent Medical Limited paid the most, $454.

General payments to Dr. O'Brien by program year, 2016 to 2025

Companies that paid Dr. O'Brien the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. O'Brien

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Erin K. O'Brien has 11 awards and honors on record

Dmand AI lists 11 awards for Dr. O'Brien, most recently Honors Award in 2024. Dr. O'Brien serves on American Rhinologic Society.

Awards and honors for Dr. O'Brien

  1. 2024
    • Honors Award
    • Teacher of the Year Award, Otolaryngology-Head and Neck Surgery
  2. 2012
    • Fellow
  3. 2011
    • CMS Stage 1 EHR
  4. 2010
    • Loan Repayment Program
  5. 2003
    • Research Week Poster Competition Award
See all 11 awards

Dr. O'Brien's committees and leadership roles

American Rhinologic SocietyMembership committee
2014 to present
Minnesota Academy of OtolaryngologyPresident
2017 to 2018

Source: Dmand AI Professional Profile Data

Dr. Erin K. O'Brien graduated from University of Pittsburgh School of Medicine

Dr. O'Brien graduated from University of Pittsburgh School of Medicine in 2000. Dr. O'Brien is a member of NHS and American Rhinologic Society.

  1. Medical schoolUniversity of Pittsburgh School of Medicine
  2. Board certified in otolaryngologyAmerican Board of Otolaryngology - Head and Neck Surgery

Source: Dmand AI Professional Profile Data

Dr. Erin K. O'Brien accepts plans from 18 insurance carriers

Dr. O'Brien is in network with 18 carriers, including Aetna, Elevance and Medica. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

Plan types Dr. O'Brien accepts, by number of carriers

  1. PPO11
  2. Medicare10
  3. HMO8
  4. POS6
  5. EPO4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Erin K. O'Brien's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Erin K. O'Brien

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

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

Dr. Erin K. O'Brien's NPI number is 1891836557. It was assigned on February 8, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Erin K. O'Brien?

Dr. Erin K. O'Brien is an otolaryngologist in Rochester, Minnesota. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).

Where does Dr. Erin K. O'Brien practice?

Dr. O'Brien practices at 200 First Street SW, Rochester, MN 55905. Dr. O'Brien's primary practice is Mayo Clinic Breast Diagnostic Clinic in Rochester, Minnesota. Dmand AI also links Dr. O'Brien to 1 clinical lab and 1 hospice.

What is Dr. Erin K. O'Brien's office phone number?

The practice phone on file for Dr. O'Brien is (507) 284-5968.

What is Dr. Erin K. O'Brien's medical license number?

Dr. O'Brien's Minnesota license number on file is 54738, one of the licenses on file in 3 states.

Which states has Dr. Erin K. O'Brien been licensed in?

Dmand AI has state licenses on file for Dr. O'Brien in Minnesota (2011 to 2025), Iowa (2008 to 2026) and Pennsylvania (2000 to 2001).

Which hospitals is Dr. Erin K. O'Brien affiliated with?

Dr. O'Brien is affiliated with Mayo Clinic Hospital, Saint Marys Campus.

What medical group is Dr. Erin K. O'Brien part of?

Dr. O'Brien is linked to Mayo Clinic.

Does Dr. Erin K. O'Brien accept Medicare?

Yes. CMS data shows Dr. O'Brien billed Medicare for 459 services in 2024, and Dr. O'Brien accepts Medicare assignment.

Does Dr. Erin K. O'Brien offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. O'Brien as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Erin K. O'Brien see?

CMS counts 191 Medicare patients who saw Dr. O'Brien in 2024, with an average age of 72.

Is Dr. Erin K. O'Brien board certified?

Yes. Dr. O'Brien is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery.

What services does Dr. Erin K. O'Brien bill to Medicare?

In 2024, Dr. O'Brien's most billed Medicare services were surgery: lungs and airway (31231), office visit, new patient (99204) and office visit, established patient (99213).

Where did Dr. Erin K. O'Brien go to medical school?

Dr. O'Brien graduated from University of Pittsburgh School of Medicine in 2000.

What drugs does Dr. Erin K. O'Brien prescribe most?

In 2024 Medicare Part D data, Dr. O'Brien's most prescribed drugs by claims were Ipratropium Bromide, Budesonide and Amoxicillin-Clavulanate Potass.

Has Dr. Erin K. O'Brien received payments from drug or device companies?

CMS Open Payments shows $1,358 in general payments to Dr. O'Brien from 9 companies from 2016 to 2025. The largest total came from Neurent Medical Limited.

How long has Dr. Erin K. O'Brien been practicing?

Dr. O'Brien graduated from medical school in 2000, 26 years ago.

Does Dr. Erin K. O'Brien do research?

Dmand AI links 43 publications to Dr. O'Brien, published from 2012 to 2024.

Who does Dr. Erin K. O'Brien publish with?

Dr. O'Brien's most frequent co-authors are Garret Wayne Choby, MD (21 shared papers), Janalee Kae Stokken, MD (13 shared papers) and Jeffrey R. Janus, MD (6 shared papers).

What insurance does Dr. Erin K. O'Brien accept?

Dr. O'Brien is in network with 18 carriers, including Aetna, Elevance and Medica. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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