NPPES file of Aug 9, 2026

Siobhan Mary O'Carroll, OD

Optometrist · Eau Claire, WI

Siobhan Mary O'Carroll, OD is an optometrist with a practice address in Eau Claire, Wisconsin, and NPI 1558353383, issued on Aug 18, 2005. Check the license (Wisconsin 2814-035, as entered in NPPES) with the Wisconsin board that licenses this profession; 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
1558353383
Name
Siobhan Mary O'Carroll
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
2814-035 WI
Self-reported in NPPES; status is on the state search
Practice location
2720 Golf RD, Eau Claire, WI 54701
Phone
(715) 318-0906
Enumerated
Aug 18, 2005
Record last updated
Aug 29, 2024
Fax
(715) 800-2017
Medicare enrollment
Enrolled (PECOS I20101119001199); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2000
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.
Download card Updates feed

Also registered at 2720 Golf RD

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

  1. Pa Vang, ODOptometrist1598685059

Verify Siobhan Mary O'Carroll in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 2814-035
    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
Find the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

44% fewer Medicare Part D claims than the average optometrist in 2024

156 Medicare Part D claims for 44 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Siobhan O'Carroll156
  2. Specialty average277

Most prescribed

  1. Latanoprost58 claims
  2. Timolol Maleate17 claims
  3. Travoprost17 claims
  4. Prednisolone Acetate16 claims
  5. Brimonidine Tartrate11 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: $95.16

4 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Siobhan O'Carroll$95.16
  2. Specialty average$769.99

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

Optometrist providers in Wisconsin

There are 1,161 optometrist records in Wisconsin.

Other optometrist records in Wisconsin

  1. Katie Abata, O.D.Appleton, WI1043646623
  2. Brianna Adams, ODStoughton, WI1093605222
  3. Gerald Adams, ODWestby, WI1760479182
  4. James AdamsPortage, WI1154007953
  5. Lawrence Addison, O.D.Weston, WI1760794697
  6. Farzana AkterWaupun, WI1346821725
  7. Margarette Elaine Alcesto, ODShorewood, WI1669984563
  8. Robert Alexejun, O.D.Wausau, WI1235275009
  9. Carmen Alfonso-Kneiert, ODFort Atkinson, WI1710938634
  10. Jennifer Alvarez, O.D.Brookfield, WI1316255805

Common questions

What is Siobhan Mary O'Carroll, OD's NPI number?

Siobhan Mary O'Carroll, OD's National Provider Identifier (NPI) is 1558353383, issued on Aug 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Siobhan Mary O'Carroll, OD located?

The NPPES record lists a practice address at 2720 Golf RD, Eau Claire, WI, 54701. Phone: (715) 318-0906. Providers update this record themselves, so call before visiting.

How can I verify Siobhan Mary O'Carroll, OD's license?

NPPES lists Wisconsin license number 2814-035, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Siobhan Mary O'Carroll, OD prescribe under Medicare Part D?

In 2024, Siobhan Mary O'Carroll, OD had 156 Medicare Part D claims for 44 beneficiaries; the average among optometrist prescribers was 277. 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.