Thomas Leib, MD
Pediatrics Physician · Glen Ellyn, IL
Thomas Leib, MD is a pediatrics physician with a practice address in Glen Ellyn, Illinois, and NPI 1427024314, issued on Feb 28, 2006. Check the license (Illinois 036100653, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Thomas Leib
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 036100653 IL
Self-reported in NPPES; status is on the state search - Practice location
- 430 Pennsylvania Ave, Glen Ellyn, IL 60137
- Phone
- (630) 469-9200
- Enumerated
- Feb 28, 2006
- Record last updated
- Jan 25, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 036100658 IL
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 3,176 in Illinois → Look up another NPI →
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Verify Thomas Leib in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036100653Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Thomas Leib among 3,176 pediatrics physician records in Illinois
Thomas Leib, MD is one of 3,176 pediatrics physician records with a practice address in Illinois. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileNo · 32% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2011 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 pediatrics physician records list a practice address in Glen Ellyn
They are 20 of the 684 NPPES records with a practice address in Glen Ellyn, and 3,176 pediatrics physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,176 in Illinois → Every provider in Glen Ellyn → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Cynthia Ambler, MDGlen Ellyn, IL 601371255479523
- Joseph Christensen, MDGlen Ellyn, IL 601371932121357
- Thomas Destefani, MDGlen Ellyn, IL 601371588638811
- Annie Huang, MDGlen Ellyn, IL 601371992771380
- Ann Karch, M.D.Glen Ellyn, IL 601371356787683
- Yasir Kazmi, MDGlen Ellyn, IL 601371205062791
- Uma Levy, M.D.Glen Ellyn, IL 601371457456949
- Christine Lipinski, M.D.Glen Ellyn, IL 601371528352358
Common questions
What is Thomas Leib, MD's NPI number?
Thomas Leib, MD's National Provider Identifier (NPI) is 1427024314, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Leib, MD located?
The NPPES record lists a practice address at 430 Pennsylvania Ave, Glen Ellyn, IL, 60137. Phone: (630) 469-9200. Providers update this record themselves, so call before visiting.
How can I verify Thomas Leib, MD's license?
NPPES lists Illinois license number 036100653, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.