CLAIRE NIEWIARA MD
NPI 1487458113
Radiology - Radiation Oncology in Maywood, IL

Q: What is Claire Niewiara's NPI number?

The NPI number for Claire Niewiara is 1487458113. It was assigned to this individual provider in the NPPES registry on April 2, 2025.

Q: What is Claire Niewiara's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Claire Niewiara was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 02, 2025PECOS Enrolled

2160 S 1ST AVE, MAYWOOD, IL 60153(708) 216-2729 Get Directions Write a Review

NPPES record last updated: May 20, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 20, 2026, Jun 16, 2025, Apr 2, 2025 (3 updates tracked since 2025).

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About Claire Niewiara Md NPPES

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

CLAIRE NIEWIARA MD (NPI 1487458113) is an individual radiation oncology provider in Maywood, Illinois, licensed in Illinois (125085666) and active in the NPI registry since April 2025. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1487458113

Entity TypeIndividualFemale

Primary Taxonomy2085R0001X

Provider Legal NameCLAIRE NIEWIARACredential: MD

Location Address2160 S 1ST AVEMaywood, IL 60153-3328

Mailing Address2160 S 1st AveMaywood, IL 60153-3328

Phone(708) 216-2729

Sole ProprietorNo

Enumeration DateApril 2, 2025

Last NPPES UpdateMay 20, 20263 updates tracked since enumeration

NPPES CertifiedMay 20, 2026

✔ NPI 1487458113 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in IL · 125085666

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

Also ListedInternal MedicineTaxonomy 207R00000X · License 125.085666 (IL)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2160 S 1ST AVE, Maywood, IL 60153

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Claire Niewiara Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60153 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

$183.39 typical visit price

range $60.08 – $183.39

Typical copayment $45.84 (range $15.02 – $45.84)

Most-billed visit code 99205

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.

ANITA OZA NAGAMINE M.D.

Radiology (Diagnostic Radiology)