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MARY J ATTEN M.D.
NPI 1164436887
Internal Medicine - Gastroenterology in Chicago, IL

Active since July 28, 2006
1901 W HARRISON ST, CHICAGO, IL 60612(312) 864-6000 Get Directions Write a Review

NPPES record last updated: April 21, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mary J Atten M.d. NPPES

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

MARY J ATTEN M.D. (NPI 1164436887) is an individual gastroenterology provider in Chicago, Illinois, licensed in Illinois (036-081688) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1164436887
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameMARY J ATTENCredential: M.D.
Location Address1901 W HARRISON STChicago, IL 60612-3714
Mailing Address1213 N Sedgwick StChicago, IL 60610-4759 · (312) 864-3251
Phone(312) 864-6000
Sole ProprietorNo
Enumeration DateJuly 28, 2006
Last NPPES UpdateApril 21, 2021
NPPES CertifiedApril 21, 2021
✔ NPI 1164436887 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in IL · 036-081688
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036-081688 (IL)
1901 W HARRISON ST, Chicago, IL 60612
Open in Google Maps ↗

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.

JOHANNA WEFES-POTTER
Emergency Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (847) 843-2000
ARON BERHANU GUDETTA MD
Internal Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-6000
DR. LIGAYA VILLAFRANCA MARASIGAN M.D.
Obstetrics & Gynecology (Gynecology)
1901 W HARRISON ST
CHICAG, IL 60612
Cook County (312) 864-5901
TIN TIN THOMAS M.D.
Internal Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-6000
COOK COUNTY
Pharmacy (Clinic Pharmacy)
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-6189
HELEN ELIZABETH STRAUS MD
Emergency Medicine
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (312) 864-0060
MR. GLEN DERRICK TRAMMELL PA-C
Physician Assistant
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (773) 869-7488
JOHN H STROGER, JR. HOSPITAL OF COOK COUNTY
General Acute Care Hospital
1901 W HARRISON ST
CHICAGO, IL 60612
Cook County (773) 319-2085

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 Atten's NPI number?

The NPI number for Mary Atten is 1164436887. It was assigned to this individual provider in the NPPES registry on July 28, 2006.

Where is Mary Atten located?

Mary Atten practices at 1901 W Harrison St, Chicago, IL 60612. The listed phone number is (312) 864-6000.

What is Mary Atten's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Mary Atten was last updated on April 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.