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ABIGAIL THERESIA LANG M.D.
NPI 1609238575
Pediatrics - Pediatric Allergy/Immunology in Chicago, IL

Active since March 22, 2016PECOS Enrolled
225 E CHICAGO AVE # 60, CHICAGO, IL 60611(312) 227-6010(312) 227-9401 Get Directions Write a Review

NPPES record last updated: November 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 11, 2025, Oct 24, 2022, Apr 4, 2022 and 3 more (6 updates tracked since 2016).

About Abigail Theresia Lang M.d. NPPES

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

ABIGAIL THERESIA LANG M.D. (NPI 1609238575) is an individual pediatric allergy/immunology provider in Chicago, Illinois, licensed in Illinois (036.148448) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609238575
Entity TypeIndividualFemale
Primary Taxonomy2080P0201X
Provider Legal NameABIGAIL THERESIA LANGCredential: M.D.
Location Address225 E CHICAGO AVE # 60Chicago, IL 60611-2991
Mailing Address225 E Chicago Ave # 60Chicago, IL 60611-2991
Phone(312) 227-6010
Fax(312) 227-9401
Sole ProprietorNo
Enumeration DateMarch 22, 2016
Last NPPES UpdateNovember 11, 20256 updates tracked since enumeration
NPPES CertifiedNovember 11, 2025
✔ NPI 1609238575 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Allergy/ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0201X
License✔ Licensed in IL · 036.148448
Definition
A pediatrician who specializes in the diagnosis and treatment of allergies, allergic reactions, and immunologic diseases in children.
Also ListedPediatricsTaxonomy 208000000X · License 125.068739 (IL)
225 E CHICAGO AVE # 60, Chicago, IL 60611
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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)

Abigail Theresia Lang M.d. 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.

Other Providers at the Same Location NPPES 3

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

ANNA B FISHBEIN MD, MSC
Pediatrics
225 E CHICAGO AVE # 60
CHICAGO, IL 60611
Cook County (312) 227-6010
DR. MICHAEL GREGOR SHERENIAN M.D.
Pediatrics (Pediatric Allergy/Immunology)
225 E CHICAGO AVE # 60
CHICAGO, IL 60611
Cook County (312) 227-6010
LINDA FERRIS FEDERER NP
Nurse Practitioner (Family)
225 E CHICAGO AVE # 60
CHICAGO, IL 60611
Cook County (312) 227-6010

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 Abigail Lang's NPI number?

The NPI number for Abigail Lang is 1609238575. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Where is Abigail Lang located?

Abigail Lang practices at 225 E Chicago Ave # 60, Chicago, IL 60611. The listed phone number is (312) 227-6010.

What is Abigail Lang's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Allergy/Immunology, with taxonomy code 2080P0201X.

Is Abigail Lang enrolled in Medicare?

Yes. Abigail Lang is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Abigail Lang was last updated on November 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.