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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NORTHWESTERN MEMORIAL HOSPITAL
NPI 1497859649
General Acute Care Hospital in Chicago, IL

Active since September 09, 2006
251 E HURON ST, CHICAGO, IL 60611(312) 926-2000 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 16, 2026, May 28, 2026, Dec 17, 2025 and 2 more (5 updates tracked since 2023).

About Northwestern Memorial Hospital NPPES

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

NORTHWESTERN MEMORIAL HOSPITAL (NPI 1497859649) is a healthcare organization registered as a general acute care hospital in Chicago, Illinois and active in the NPI registry since September 2006. The organization maintains 3 additional practice locations and lists John A. Orsini, Vice President Of Finance, as its authorized official.

NPPES Registry Identity

NPI1497859649
Entity TypeOrganization
Primary Taxonomy282N00000X
Legal Business NameNORTHWESTERN MEMORIAL HOSPITAL
Location Address251 E HURON STChicago, IL 60611-2908
Mailing Address4698 DeptCarol Stream, IL 60122-4698
Phone(312) 926-2000
Organization SubpartNo
Authorized OfficialJohn A. OrsiniVice President Of Finance · (312) 926-2000
Enumeration DateSeptember 9, 2006
Last NPPES UpdateJuly 16, 20265 updates tracked since enumeration
NPPES CertifiedJuly 16, 2026
✔ NPI 1497859649 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyGeneral Acute Care HospitalHospitals
Taxonomy Code282N00000X
License✔ Licensed in IL · 0003251
Definition
An acute general hospital is an institution whose primary function is to provide inpatient diagnostic and therapeutic services for a variety of medical conditions, both surgical and non-surgical, to a wide population group. The hospital treats patients in an acute phase of illness or injury, characterized by a single episode or a fairly short duration, from which the patient returns to his or her normal or previous level of activity.
Also ListedPsychiatric UnitTaxonomy 273R00000X
251 E HURON ST, Chicago, IL 60611
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Other Names 1

Doing Business AsNorthwestern Memorial Hospital

Secondary Practice Locations 3

Location 1675 N Saint Clair StChicago, IL 60611-5975 · Phone (312) 926-2000
Location 2259 E Erie StChicago, IL 60611-2987 · Phone (312) 926-2000
Location 315300 West AveOrland Park, IL 60462-4600 · Phone (312) 926-2000

Other Identifiers 1

Medicaid03122IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.Insurance ›

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.

MARK WANG M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
251 E HURON ST, FEINBERG PAVILION
CHICAGO, IL 60611
Cook County (312) 503-8144
DR. MARLEY ANN DOYLE M/D.
Psychiatry & Neurology (Psychiatry)
251 E HURON ST, GALTER 3-150, C
CHICAGO, IL 60611
Cook County (312) 926-6895
CASSIDY SCHWAB MD
Anesthesiology
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 695-0061
SEONG PARK
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
EMMA WALLS GREEVER MD
Emergency Medicine
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
NICOLE ELIZABETH TRUPIANO MD
Dermatology
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
ASHRAF SAMHAN MD
Internal Medicine
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000
DR. SABINA SPIGNER MD, MS, MPH
Obstetrics & Gynecology
251 E HURON ST
CHICAGO, IL 60611
Cook County (312) 926-2000

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 Northwestern Memorial Hospital's NPI number?

The NPI number for Northwestern Memorial Hospital is 1497859649. It was assigned to this organization in the NPPES registry on September 9, 2006.

Where is Northwestern Memorial Hospital located?

Northwestern Memorial Hospital is located at 251 E Huron St, Chicago, IL 60611. The listed phone number is (312) 926-2000.

What is Northwestern Memorial Hospital's specialty?

The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.

What insurance does Northwestern Memorial Hospital accept?

Health plans from Sanford Health Plan list Northwestern Memorial Hospital 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 Northwestern Memorial Hospital was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.