Dr. Thomas Leib, MD

  • Glen Ellyn, IL
  • Pediatrician
NPI1427024314
Industry payments
$11
Affiliated sites
2
Medical group
1
State license
1
Year NPI issued
2006
Practice address
430-54 Pennsylvania Ave, Glen Ellyn, IL 60137
Practice phone
Call (630) 469-9200
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Duly Health and Care

Glen Ellyn, Illinois

See all 4 affiliations

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Dr. Thomas Leib is a pediatrician in Glen Ellyn, Illinois

Dr. Leib practices at Duly Health and Care in Glen Ellyn, Illinois.

Dr. Leib's NPI, 1427024314, was assigned on February 28, 2006. Dr. Leib holds Illinois license 036100653.

NPI and contact details
NPI enumeration date
February 28, 2006
NPI status
Active
Practice phone
(630) 469-9200
Professional email
Get email
Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Thomas Leib practices at Duly Health and Care in Glen Ellyn, Illinois

Dr. Leib's primary practice is Duly Health and Care, at 430-54 Pennsylvania Ave, Glen Ellyn, IL 60137 in Dupage County. The practice phone is (630) 469-9200.

  • Duly Health and Care
    430-54 Pennsylvania Ave, Glen Ellyn, IL 60137 · Dupage CountyPhone(630) 469-9200

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Thomas Leib is affiliated with 3 sites of care and 1 medical group

Dr. Leib's primary practice is Duly Health and Care in Glen Ellyn, Illinois. The medical group on file is DuPage Medical Group. Dmand AI also links Dr. Leib to 1 more group practice or clinic and 1 therapy and rehab clinic, each named with a free account. Dr. Leib's employer is on file too: a physical therapy & rehab clinic.

See all 4 affiliations for Dr. Leib

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Thomas Leib's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leib practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Duly Health and CareAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas Leib is one of 2,423 pediatricians in Illinois

Pediatrics is Dr. Leib's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Leib is licensed in Illinois.

Specialties and state licenses

  • Pediatrics, IllinoisPrimaryLicense 036100653 · taxonomy 208000000X

Pediatricians near Dr. Leib

Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Thomas Leib's patients have a median age of 10

Across all payers, Dmand AI patient panel data puts Dr. Leib's median patient age at 10, with 36% women.

Dr. Leib's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 10

Patient panel by sex, all payers

  • Women36%
  • Men64%

Source: Dmand AI Patient Panel Data

Dr. Thomas Leib received $11 in industry payments in 2016

CMS Open Payments shows 1 general payment to Dr. Leib from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $11.

Companies that paid Dr. Leib the most, 2016 to 2016

Share is of all general payments to this clinician.

See all payments to Dr. Leib

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Thomas Leib's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Thomas Leib

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Thomas Leib's NPI number?

Dr. Thomas Leib's NPI number is 1427024314. It was assigned on February 28, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas Leib?

Dr. Thomas Leib is a pediatrician in Glen Ellyn, Illinois. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).

Where does Dr. Thomas Leib practice?

Dr. Leib practices at 430-54 Pennsylvania Ave, Glen Ellyn, IL 60137. Dr. Leib's primary practice is Duly Health and Care in Glen Ellyn, Illinois. Dmand AI also links Dr. Leib to 1 group practice or clinic and 1 therapy and rehab clinic.

What is Dr. Thomas Leib's office phone number?

The practice phone on file for Dr. Leib is (630) 469-9200.

What is Dr. Thomas Leib's medical license number?

Dr. Leib holds Illinois license 036100653.

What medical group is Dr. Thomas Leib part of?

Dr. Leib is linked to DuPage Medical Group.

Has Dr. Thomas Leib received payments from drug or device companies?

CMS Open Payments shows $11 in general payments to Dr. Leib from 1 company from 2016 to 2016. The largest total came from GlaxoSmithKline, LLC.

How long has Dr. Thomas Leib been practicing?

Dr. Leib's NPI was assigned in 2006.

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