Northwestern Nasal & Sinus
NPI 1144257387 · Diagnostic Radiology Physician · Chicago, IL
Northwestern Nasal & Sinus is a Diagnostic Radiology Physician organization in Chicago, IL (NPI 1144257387).
Provider details
- NPI number
- 1144257387
- Entity type
- Organization
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Tassi, Cfo(312) 266-6673
- License
- 9256297 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1 documented practice location
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
Registry dates
- Enumerated
- 2006-06-26
- Last updated
- 2008-06-24
Frequently asked questions
- What is Northwestern Nasal & Sinus's NPI number?
- Northwestern Nasal & Sinus's National Provider Identifier (NPI) is 1144257387, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Northwestern Nasal & Sinus?
- Northwestern Nasal & Sinus is classified in the NPPES registry as Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Northwestern Nasal & Sinus located?
- Northwestern Nasal & Sinus's practice location on file with NPPES is 676 N St S Clair, Chicago, IL 60611.
- What is Northwestern Nasal & Sinus's phone number?
- The practice phone number listed in the NPPES registry for Northwestern Nasal & Sinus is (312) 266-6673.
- Who is the authorized official for Northwestern Nasal & Sinus?
- The authorized official listed on Northwestern Nasal & Sinus's NPPES record is Michael Tassi, Cfo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Northwestern Nasal & Sinus's NPI active?
- Yes — Northwestern Nasal & Sinus's NPI (1144257387) is active in the NPPES registry as of the last update on 2008-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.