NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Salmon S Goldberg MD and David S Chudwin Mdsc

Allergy & Immunology (Internal Medicine) Physician in Northbrook, IL · enumerated 2007 · authorized official David Chudwin, Partner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1366585614

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Salmon S Goldberg MD and David S Chudwin Mdsc
Other name <Unavail>
Practice address 500 Skokie Blvd, Suite 140, Northbrook, IL, 60062
Phone (847) 272-4296
Fax (847) 272-4177
Enumeration date Feb 15, 2007
Last updated in NPPES Jul 25, 2007

Taxonomy & classification

207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name David Chudwin
Title Partner
Phone (847) 272-4296

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Salmon S Goldberg MD and David S Chudwin Mdsc located?
The practice location on file with NPPES is in Northbrook, IL.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-07-25. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-25.