NATHALIE ANTONIOS MD
NPI 1902301138
Internal Medicine - Pulmonary Disease in Chicago, IL
About Nathalie Antonios Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NATHALIE ANTONIOS MD (NPI 1902301138) is an individual pulmonary disease provider in Chicago, Illinois, licensed in Illinois (036156686) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and maintains a secondary practice location in Lake Forest.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Nathalie Antonios Md 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The University Of Chicago Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60637 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
CHICAGO, IL 60637
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 Nathalie Antonios's NPI number?
The NPI number for Nathalie Antonios is 1902301138. It was assigned to this individual provider in the NPPES registry on March 28, 2018.
Where is Nathalie Antonios located?
Nathalie Antonios practices at 5841 S Maryland Ave, Chicago, IL 60637. The listed phone number is (773) 702-1000.
What is Nathalie Antonios's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Nathalie Antonios enrolled in Medicare?
Yes. Nathalie Antonios 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.
Is Nathalie Antonios affiliated with any hospitals?
According to CMS data, Nathalie Antonios is affiliated with The University Of Chicago Medical Center.
When was this NPI record last updated?
The NPPES record for Nathalie Antonios was last updated on February 6, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
