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SARAH ELIZABETH OLEN-THOMAS
NPI 1164310561
Optometrist in Chicago, IL

Active since June 25, 2025PECOS EnrolledAccepts Medicare Assignment
3241 S MICHIGAN AVE, CHICAGO, IL 60616(312) 225-6200 Get Directions Write a Review

NPPES record last updated: July 24, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Sarah Elizabeth Olen-thomas NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SARAH ELIZABETH OLEN-THOMAS (NPI 1164310561) is an individual optometrist in Chicago, Illinois, licensed in Illinois (046012003) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS and is a graduate of Ohio State University - College Of Optometry (2025).

NPPES Registry Identity

NPI1164310561
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameSARAH ELIZABETH OLEN-THOMAS
Location Address3241 S MICHIGAN AVEChicago, IL 60616-4201
Mailing Address3241 S Michigan AveChicago, IL 60616-4201 · (312) 225-6200
Phone(312) 225-6200
Sole ProprietorNo
Medical School CMSOhio State University - College Of OptometryGraduated 2025
Enumeration DateJune 25, 2025
Last NPPES UpdateJuly 24, 2025
NPPES CertifiedJuly 24, 2025
✔ NPI 1164310561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in IL · 046012003
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
3241 S MICHIGAN AVE, Chicago, IL 60616
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sarah Elizabeth Olen-thomas is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8325556269
PECOS Enrollment IDI20250801003909
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sarah Olen-thomas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Illinois College Of Optometry
0.1 mi
Optometrist
3241 S MICHIGAN AVENUE
Chicago, IL 60616
  • Reassigned Medicare billing, Illinois enrollment
  • 143 clinicians in this Medicare group
NPI 1285612390 (312) 225-6200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60616 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NATHAN MICHAEL OKANO
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 225-6200
ANDRIA M PIHOS OD
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 225-6200
ELIZABETH WYLES O.D.
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 949-9187
VALARIE L CONRAD OD
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 225-6200
DR. NAVJIT KAUR SANGHERA O.D.
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 949-7211
MYRIAM MORCOS OD
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 949-7251
DENNIS H IRELAND OD
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 225-6200
DR. KATIE FOREMAN O.D.
Optometrist
3241 S MICHIGAN AVE
CHICAGO, IL 60616
Cook County (312) 949-7751

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sarah Olen-thomas's NPI number?

The NPI number for Sarah Olen-thomas is 1164310561. It was assigned to this individual provider in the NPPES registry on June 25, 2025.

Where is Sarah Olen-thomas located?

Sarah Olen-thomas practices at 3241 S Michigan Ave, Chicago, IL 60616. The listed phone number is (312) 225-6200.

What is Sarah Olen-thomas's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Sarah Olen-thomas enrolled in Medicare?

Yes. Sarah Olen-thomas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Sarah Olen-thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Olen-thomas reassigns Medicare benefits to Illinois College Of Optometry (Chicago, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sarah Olen-thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sarah Olen-thomas accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 8 other insurers list Sarah Olen-thomas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sarah Olen-thomas was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.