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Thomas Leib, MD
NPI 1427024314 · Pediatrics Physician · Glen Ellyn, IL
Thomas Leib, MD is a Pediatrics Physician provider in Glen Ellyn, IL (NPI 1427024314).
Provider details
- NPI number
- 1427024314
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036100653 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
430 Pennsylvania Ave
Glen Ellyn, IL 60137-4464
Phone: (630) 469-9200
Street-level locationGet directions
Mailing address
1860 Paysphere Cir
Chicago, IL 60674-0018
Registry dates
- Enumerated
- 2006-02-28
- Last updated
- 2011-01-25
Frequently asked questions
- What is Thomas Leib's NPI number?
- Thomas Leib's National Provider Identifier (NPI) is 1427024314, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Leib's specialty?
- Thomas Leib is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Leib located?
- Thomas Leib's practice location on file with NPPES is 430 Pennsylvania Ave, Glen Ellyn, IL 60137-4464.
- What is Thomas Leib's phone number?
- The practice phone number listed in the NPPES registry for Thomas Leib is (630) 469-9200.
- Is Thomas Leib's NPI active?
- Yes — Thomas Leib's NPI (1427024314) is active in the NPPES registry as of the last update on 2011-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.