NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theodore Lyons Stern, MD

Family Medicine Physician in Westmont, IL · enumerated 2005.

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

National Provider Identifier

1043202567

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Theodore Lyons Stern
Credential MD
Sex Male
Practice address 303 W Ogden Ave, Westmont, IL, 60559
Fax (630) 432-6660
Enumeration date Aug 19, 2005
Last updated in NPPES Sep 23, 2022

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 01058075A (IN) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 01058075A (IN) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036-108619 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
90001358 Other IL BCBSIL
200501020 Medicaid IN -
036108619 Medicaid IL -

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 does Theodore Stern practice?
The practice location on file with NPPES is in Westmont, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Theodore Stern?
The National Provider Identifier (NPI) for Theodore Stern is 1043202567, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-23.