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ADA I ARIAS MD SC
NPI 1023017480
Internal Medicine - Pulmonary Disease in Chicago, IL

Active since July 19, 2005
2222 W DIVISION ST STE 335, CHICAGO, IL 60622(773) 342-5781 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2022, Nov 18, 2020 (2 updates tracked since 2020).

About Ada I Arias Md Sc NPPES

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

ADA I ARIAS MD SC (NPI 1023017480) is a healthcare organization registered as a pulmonary disease in Chicago, Illinois and active in the NPI registry since July 2005. The organization lists Ada I. Arias, Chair, as its authorized official.

NPPES Registry Identity

NPI1023017480
Entity TypeOrganization
Primary Taxonomy207RP1001X
Legal Business NameADA I ARIAS MD SC
Location Address2222 W DIVISION ST STE 335Chicago, IL 60622-2995
Mailing Address1s376 Summit Ave Ste 4cOakbrook Terrace, IL 60181-3966 · (630) 424-1122 · Fax (630) 324-0067
Phone(773) 342-5781
Organization SubpartNo
Authorized OfficialAda I. AriasChair · (773) 342-5781
Enumeration DateJuly 19, 2005
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
NPPES CertifiedNovember 18, 2020
✔ NPI 1023017480 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
2222 W DIVISION ST STE 335, Chicago, IL 60622
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ada I Arias Md Sc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Ada I Arias MD Sc, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Ada Arias, M.D.
Critical Care (Intensivists)
NPI 1306848171
2222 W DIVISION ST STE 335
Chicago, IL 60622
(773) 342-5781
✔ PECOS✔ Accepts MedicareSame address
Laura Portillo, APN-CNP
Nurse Practitioner
NPI 1932700911
9600 GROSS POINT RD STE 1200
Skokie, IL 60076
(847) 945-7246
✔ PECOS✔ Accepts Medicare11 mi

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

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 Ada I Arias MD Sc's NPI number?

The NPI number for Ada I Arias MD Sc is 1023017480. It was assigned to this organization in the NPPES registry on July 19, 2005.

Where is Ada I Arias MD Sc located?

Ada I Arias MD Sc is located at 2222 W Division St Ste 335, Chicago, IL 60622. The listed phone number is (773) 342-5781.

What is Ada I Arias MD Sc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Ada I Arias MD Sc enrolled in Medicare?

Yes. Ada I Arias MD Sc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ada I Arias MD Sc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Ada I Arias MD Sc, in Critical Care (Intensivists) and Nurse Practitioner. A 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 the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Ada I Arias MD Sc accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Ada I Arias MD Sc 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 Ada I Arias MD Sc was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.