NPPES file of Aug 9, 2026

Louis Aguiar, O.D.

Optometrist · Fall River, MA

Louis Aguiar, O.D. is an optometrist with a practice address in Fall River, Massachusetts, and NPI 1831191923, issued on Jun 2, 2005. Check the license (Massachusetts 2537, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1831191923
Name
Louis Aguiar
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
2537 MA
Self-reported in NPPES; status is on the state search
Practice location
289 Pleasant St, Fall River, MA 02721
Phone
(508) 678-2718
Enumerated
Jun 2, 2005
Record last updated
Apr 2, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(508) 646-0333
Medicare enrollment
Enrolled (PECOS I20040127000735); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 1975
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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8 nearest optometrist records → All 1,501 in Massachusetts → Look up another NPI →

Also registered at 289 Pleasant St

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

  1. Nicole Aguiar, O.D.Optometrist1891881132
  2. Aamir Ahmad, MDDiagnostic Radiology Physician1215124391
  3. Melanie Araujo, N.P.Nurse Practitioner1295921120
  4. Michelle Buffington, A.N.P.Nurse Practitioner1558640540
  5. Thomas Capozza, M.D.Gastroenterology Physician1609848860
  6. Ravi Chander, M.D.Cardiovascular Disease Physician1457355729

Verify Louis Aguiar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 2537    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 Massachusetts 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.

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Bills Medicare through one group practice

  1. Prima Care, PCFall River, MA

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

Louis Aguiar among 1,501 optometrist records in Massachusetts

Louis Aguiar, O.D. is one of 1,501 optometrist records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1975 · median 2008 among the 933 with a school on file
  • Record last updated2008 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Massachusetts

There are 1,501 optometrist records in Massachusetts.

All 1,501 in Massachusetts → Every provider in Fall River → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Nicole Aguiar, O.D.Fall River, MA 027211891881132
  2. Eudoxia Tsongalis-Arruda, ODFall River, MA 027211194804922
  3. Monserrat Arias, ODFall River, MA 027201831714625
  4. Christina Benevides, O.D.Fall River, MA 027201548697675
  5. Claire Bergus, ODFall River, MA 027201790853141
  6. Emily Cardone, ODFall River, MA 027201912484999
  7. Caroline Coutu, ODFall River, MA 027201578328514
  8. Christina Herald, O.D.Fall River, MA 027201831504133

Common questions

What is Louis Aguiar, O.D.'s NPI number?

Louis Aguiar, O.D.'s National Provider Identifier (NPI) is 1831191923, issued on Jun 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Louis Aguiar, O.D. located?

The NPPES record lists a practice address at 289 Pleasant St, Fall River, MA, 02721. Phone: (508) 678-2718. Providers update this record themselves, so call before visiting.

How can I verify Louis Aguiar, O.D.'s license?

NPPES lists Massachusetts license number 2537, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.