NPPES file of Aug 9, 2026

Samantha Vaassen, O.D.

Optometrist · Dubuque, IA

Samantha Vaassen, O.D. is an optometrist with a practice address in Dubuque, Iowa, and NPI 1346528858, issued on Aug 1, 2011. Check the license (Iowa 002564, as entered in NPPES) with the Iowa 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
1346528858
Name
Samantha Vaassen
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
002564 IA
Self-reported in NPPES; status is on the state search
Practice location
1500 Associates Dr, Dubuque, IA 52002
Phone
(563) 584-4115
Enumerated
Aug 1, 2011
Record last updated
Aug 10, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(563) 584-4256
Medicare enrollment
Enrolled (PECOS I20130128000521); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2011
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 1500 Associates Dr

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

  1. Edward Alt, MDObstetrics & Gynecology Physician1548432727
  2. Matthew Arensdorff, O.D.Optometrist1255644621
  3. Daniel Armstrong, PHYSICIAN ASSISTANTMedical Physician Assistant1699909028
  4. Jeffrey Artioli, CRNACertified Registered Nurse Anesthetist1558006411
  5. William Auer, ODOptometrist1598334971
  6. Kent Baumann, M.D.Ophthalmology Physician1316999725

Verify Samantha Vaassen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 002564
    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 Iowa license search

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51% fewer Medicare Part D claims than the average optometrist in 2024

137 Medicare Part D claims for 50 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.

  1. Samantha Vaassen137
  2. Specialty average277

Most prescribed

  1. Latanoprost74 claims
  2. Neomycin-Polymyxin-Dexameth25 claims
  3. Restasis18 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.

Bills Medicare through one group practice

  1. Medical Associates Clinic P CGalena, IL

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

Samantha Vaassen among 676 optometrist records in Iowa

Samantha Vaassen, O.D. is one of 676 optometrist records with a practice address in Iowa. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 71% of them.

  • NPI issued2011 · 71% of these records are older, 27% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2011 · median 2006 among the 462 with a school on file
  • Record last updated2012 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

23 optometrist records list a practice address in Dubuque

They are 23 of the 1,468 NPPES records with a practice address in Dubuque, and 676 optometrist records in Iowa.

The 8 optometrist records with the nearest ZIP codes

  1. Matthew Arensdorff, O.D.Dubuque, IA 520021255644621
  2. David Auer, ODDubuque, IA 520021497735260
  3. William Auer, ODDubuque, IA 520021598334971
  4. Erica Da Silva, ODDubuque, IA 520021083363360
  5. Michelle Gardner, ODDubuque, IA 520021639383599
  6. Corey Kelly, O.D.Dubuque, IA 520021720166945
  7. Kelli Lecher, O.D.Dubuque, IA 520021255746525
  8. Steven Maxwell, O.D.Dubuque, IA 520021861457657

Common questions

What is Samantha Vaassen, O.D.'s NPI number?

Samantha Vaassen, O.D.'s National Provider Identifier (NPI) is 1346528858, issued on Aug 1, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Samantha Vaassen, O.D. located?

The NPPES record lists a practice address at 1500 Associates Dr, Dubuque, IA, 52002. Phone: (563) 584-4115. Providers update this record themselves, so call before visiting.

How can I verify Samantha Vaassen, O.D.'s license?

NPPES lists Iowa license number 002564, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Samantha Vaassen, O.D. prescribe under Medicare Part D?

In 2024, Samantha Vaassen, O.D. had 137 Medicare Part D claims for 50 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.