NPPES file of Aug 9, 2026

Sarah Elizabeth Olen-Thomas

Optometrist · Chicago, IL

Sarah Elizabeth Olen-Thomas is an optometrist with a practice address in Chicago, Illinois, and NPI 1164310561, issued on Jun 25, 2025. Check the license (Illinois 046012003, as entered in NPPES) with the Illinois 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
1164310561
Name
Sarah Elizabeth Olen-Thomas
Primary taxonomy
Optometrist 152W00000X
License number
046012003 IL
Self-reported in NPPES; status is on the state search
Practice location
3241 S Michigan Ave, Chicago, IL 60616
Phone
(312) 225-6200
Enumerated
Jun 25, 2025
Record last updated
Jul 24, 2025
Medicare enrollment
Enrolled (PECOS I20250801003909); accepts Medicare assignment
Medical or professional school
Ohio State University - College Of Optometry, 2025
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 2,697 in Illinois → Look up another NPI →

Also registered at 3241 S Michigan Ave

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

  1. Stephanie Adams, OD, PHDOptometrist1245721679
  2. Manal AkkoucheOptometrist1770471104
  3. Megan Allen, O.D.Optometrist1306045083
  4. Christine Allison, ODOptometrist1467445908
  5. Kashifa Ansari, ODOptometrist1467145326
  6. Eric Baas, ODOptometrist1982621801

Verify Sarah Elizabeth Olen-Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 046012003    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 Illinois 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. Illinois College OF OptometryChicago, IL

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

Sarah Elizabeth Olen-Thomas among 2,697 optometrist records in Illinois

Sarah Elizabeth Olen-Thomas is one of 2,697 optometrist records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 96% of them.

  • NPI issued2025 · 96% of these records are older, 2% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2025 · median 2008 among the 1,513 with a school on file
  • Record last updated2025 · 68% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Illinois

There are 2,697 optometrist records in Illinois.

All 2,697 in Illinois → Every provider in Chicago → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Christine Allison, ODChicago, IL 606161467445908
  2. Michael Chaglasian, ODChicago, IL 606161841283330
  3. Mark Colip, ODChicago, IL 606161659364149
  4. Helen Gabriel, ODChicago, IL 606161164415600
  5. Gary Gunderson, ODChicago, IL 606161699768135
  6. Neil Hodur, ODChicago, IL 606161770576217
  7. Janice Jurkus, ODChicago, IL 606161972596419
  8. Valerie Kattouf, ODChicago, IL 606161144213687

Common questions

What is Sarah Elizabeth Olen-Thomas's NPI number?

Sarah Elizabeth Olen-Thomas's National Provider Identifier (NPI) is 1164310561, issued on Jun 25, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Elizabeth Olen-Thomas located?

The NPPES record lists a practice address at 3241 S Michigan Ave, Chicago, IL, 60616. Phone: (312) 225-6200. Providers update this record themselves, so call before visiting.

How can I verify Sarah Elizabeth Olen-Thomas's license?

NPPES lists Illinois license number 046012003, as entered by the provider. Search the Illinois 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.