Northwestern Memorial Hospital
NPI 1497859649 · General Acute Care Hospital · Chicago, IL
Enrolled with Medicare as Part a Provider - Hospital · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Northwestern Memorial Hospital is a General Acute Care Hospital organization in Chicago, IL (NPI 1497859649).
Provider details
- NPI number
- 1497859649
- Entity type
- Organization
- Primary specialty
- General Acute Care HospitalHospitals
- Organization subpart
- No
- Authorized official
- John Orsini, Vice President of Finance(312) 926-2000
Specialties & taxonomies
Hospitals
- Psychiatric Hospital Unit273R00000X
Hospital Units
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Northwestern Memorial Hospital
Additional practice locations (1)
- 675 N Saint Clair StChicago, IL 60611-5975Phone: (312) 926-2000
Registry dates
- Enumerated
- 2006-09-09
- Last updated
- 2026-05-28
- Certified
- 2026-05-28
Frequently asked questions
- What is Northwestern Memorial Hospital's NPI number?
- Northwestern Memorial Hospital's National Provider Identifier (NPI) is 1497859649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Northwestern Memorial Hospital?
- Northwestern Memorial Hospital is classified in the NPPES registry as General Acute Care Hospital (Hospitals).
- Where is Northwestern Memorial Hospital located?
- Northwestern Memorial Hospital's practice location on file with NPPES is 251 E Huron St, Chicago, IL 60611-2908.
- What is Northwestern Memorial Hospital's phone number?
- The practice phone number listed in the NPPES registry for Northwestern Memorial Hospital is (312) 926-2000.
- Does Northwestern Memorial Hospital accept Medicare?
- Northwestern Memorial Hospital is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Northwestern Memorial Hospital?
- The authorized official listed on Northwestern Memorial Hospital's NPPES record is John Orsini, Vice President of Finance. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Northwestern Memorial Hospital's NPI active?
- Yes — Northwestern Memorial Hospital's NPI (1497859649) is active in the NPPES registry as of the last update on 2026-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.