MARY TOBIN M.D.
NPI 1528083193
Allergy & Immunology in Chicago, IL

Q: What is Mary Tobin's NPI number?

The NPI number for Mary Tobin is 1528083193. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Q: What is Mary Tobin's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Mary Tobin was last updated on September 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since July 13, 2006PECOS Enrolled

1725 W HARRISON ST, SUITE 117 PB, CHICAGO, IL 60612(312) 942-6296 Get Directions Write a Review

NPPES record last updated: September 28, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Mary Tobin M.d. NPPES

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

MARY TOBIN M.D. (NPI 1528083193) is an individual allergy & immunology provider in Chicago, Illinois, licensed in Illinois (036-057479) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1528083193

Entity TypeIndividualFemale

Primary Taxonomy207K00000X

Provider Legal NameMARY TOBINCredential: M.D.

Location Address1725 W HARRISON ST, SUITE 117 PBChicago, IL 60612-3841

Mailing Address1725 W Harrison St, Suite 117 PbChicago, IL 60612-3841 · (312) 942-6296

Phone(312) 942-6296

Sole ProprietorNo

Enumeration DateJuly 13, 2006

Last NPPES UpdateSeptember 28, 2020

NPPES CertifiedSeptember 28, 2020

✔ NPI 1528083193 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in IL · 036-057479

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036-057479 (IL)

1725 W HARRISON ST, Chicago, IL 60612

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Tobin 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.

Medicare Billing Reassignment

Medicare enrollment records show Mary Tobin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rush University Medical Group

0.2 mi

Internal Medicine

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
2,169 clinicians in this Medicare group

NPI 1093819542 (312) 942-5000

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

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.

DR. MARTA BATUS MD

Internal Medicine (Medical Oncology)

1725 W HARRISON ST, SUITE 809
CHICAGO, IL 60612

Cook County (312) 563-2487

KM WILLIAMS MD SC

Clinic/Center (Ophthalmologic Surgery)

1725 W HARRISON ST, STE 910
CHICAGO, IL 60612

Cook County (312) 622-7320

KENNETH M BOYER M.D.

Pediatrics (Pediatric Infectious Diseases)

1725 W HARRISON ST, SUITE 710
CHICAGO, IL 60612

Cook County (312) 942-3034

RUSH UNIVERSITY MEDICAL CENTER

Internal Medicine (Hematology)

1725 W HARRISON ST, SUITE 1010
CHICAGO, IL 60612

Cook County (312) 942-5904

DAVID ANSELL M.D.

Internal Medicine

1725 W HARRISON ST, SUITE 263
CHICAGO, IL 60612

Cook County (312) 942-6700

MIDWEST NEUROPSYCHIATRIC ASSOC LTD

Specialist

1725 W HARRISON ST, SUITE 744
CHICAGO, IL 60612

Cook County (312) 942-0118

JANICE DIESCHBOURG M.D.

Radiology (Diagnostic Radiology)

1725 W HARRISON ST, SUITE 155
CHICAGO, IL 60612

Cook County (312) 563-3269

AFFILIATED UROLOGISTS, LTD

Specialist

1725 W HARRISON ST, SUITE 762
CHICAGO, IL 60612

Cook County (312) 563-3447

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 Mary Tobin's NPI number?

The NPI number for Mary Tobin is 1528083193. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is Mary Tobin located?

Mary Tobin practices at 1725 W Harrison St Suite 117 Pb, Chicago, IL 60612. The listed phone number is (312) 942-6296.

What is Mary Tobin's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Mary Tobin enrolled in Medicare?

Yes. Mary Tobin is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Tobin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Tobin reassigns Medicare benefits to Rush University Medical Group (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 Mary Tobin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Tobin was last updated on September 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.