NPPES file of Aug 9, 2026

Brian E. O'Shaughnessy, MD

Neurology Physician · Waterloo, IA

Brian E. O'Shaughnessy, MD is a neurology physician with a practice address in Waterloo, Iowa, and NPI 1023021151, issued on Aug 13, 2006. Check the license on the Iowa Board of Medicine; 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
1023021151
Name
Brian E. O'Shaughnessy
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
036-066709 IL
Self-reported in NPPES; status is on the state search
Practice location
152 W Dale St, Waterloo, IA 50703
Phone
(319) 235-5060
Enumerated
Aug 13, 2006
Record last updated
Mar 24, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(319) 235-5061
Medicaid ID
036066709 IL
Medicare enrollment
Enrolled (PECOS I20160513000250); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1981
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 152 W Dale St

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

  1. Kate Bolick, ARNPNurse Practitioner1841657236
  2. Marcy Johnson, ARNPFamily Nurse Practitioner1992383111
  3. Richard Menning, MDCardiovascular Disease Physician1932152238
  4. Alec Steils, ARNPNurse Practitioner1578132940

Verify Brian E. O'Shaughnessy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of MedicineCheck 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 Iowa license search

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2.1 times the Medicare Part D claims of the average neurology physician in 2024

2,928 Medicare Part D claims for 456 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Brian O'Shaughnessy2,928
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl470 claims
  2. Gabapentin376 claims
  3. Carbidopa-Levodopa288 claims
  4. Memantine Hcl203 claims
  5. Duloxetine Hcl197 claims
  6. Levetiracetam149 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: $44.89

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian O'Shaughnessy$44.89
  2. Specialty average$8,318.07

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. Iowa Physicians Clinic Medical FoundationWaterloo, IA

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

Brian E. O'Shaughnessy among 167 neurology physician records in Iowa

Brian E. O'Shaughnessy, MD is one of 167 neurology physician records with a practice address in Iowa. 70% 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 20% of them.

  • NPI issued2006 · 20% of these records are older, 56% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated1981 · median 2001 among the 86 with a school on file
  • Record last updated2016 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Iowa

There are 167 neurology physician records in Iowa.

The 8 neurology physician records with the nearest ZIP codes

  1. Marie McMillen, DOWaterloo, IA 507021255712618
  2. Ashok Nakhasi, M.D.Waterloo, IA 507021043262181
  3. Sangeeta Shah, MDWaterloo, IA 507021477765584
  4. Brian Sires, M.D.Waterloo, IA 507021508803354
  5. Ivo Bekavac, MD PHDWaterloo, IA 507011619920089
  6. Victor Jaramillo, MDFort Dodge, IA 505011265497341
  7. Sant Hayreh, M.D.Mason City, IA 504011467446955
  8. Rajinder Verma, M.D.Mason City, IA 504011184612202

Common questions

What is Brian E. O'Shaughnessy, MD's NPI number?

Brian E. O'Shaughnessy, MD's National Provider Identifier (NPI) is 1023021151, issued on Aug 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian E. O'Shaughnessy, MD located?

The NPPES record lists a practice address at 152 W Dale St, Waterloo, IA, 50703. Phone: (319) 235-5060. Providers update this record themselves, so call before visiting.

How can I verify Brian E. O'Shaughnessy, MD's license?

Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian E. O'Shaughnessy, MD prescribe under Medicare Part D?

In 2024, Brian E. O'Shaughnessy, MD had 2,928 Medicare Part D claims for 456 beneficiaries; the average among neurology physician prescribers was 1,370. 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.