Thomas John Ng
Emergency Medicine Physician · Chicago, IL
Thomas John Ng is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1568098572, issued on Mar 21, 2020. Check the license (Illinois 125075793, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Thomas John Ng
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 125075793 IL
97198 SC
Self-reported in NPPES; status is on the state search - Practice location
- 251 E Huron St, Chicago, IL 60611
- Phone
- (312) 926-2000
- Enumerated
- Mar 21, 2020
- Record last updated
- Aug 3, 2026
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 251 E Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas John Ng 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 125075793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average emergency medicine physician in 2024
98 Medicare Part D claims for 73 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Thomas John Ng among 3,291 emergency medicine physician records in Illinois
Thomas John Ng is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 78% of them.
- NPI issued2020 · 78% of these records are older, 18% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,310 emergency medicine physician records list a practice address in Chicago
They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Chicago → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- James Adams, MDChicago, IL 606111912993411
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- John Bailitz, M.D.Chicago, IL 606111710988654
- Emily Baran, MDChicago, IL 606111568407641
- George Chiampas, D.O.Chicago, IL 606111538169636
- Matthew Kippenhan, MDChicago, IL 606111639106974
- Amy Kontrick, MDChicago, IL 606111215973367
- Theodore Koutouzis, MDChicago, IL 606111891773321
Common questions
What is Thomas John Ng's NPI number?
Thomas John Ng's National Provider Identifier (NPI) is 1568098572, issued on Mar 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Thomas John Ng located?
The NPPES record lists a practice address at 251 E Huron St, Chicago, IL, 60611. Phone: (312) 926-2000. Providers update this record themselves, so call before visiting.
How can I verify Thomas John Ng's license?
NPPES lists Illinois license number 125075793, 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.
How much does Thomas John Ng prescribe under Medicare Part D?
In 2024, Thomas John Ng had 98 Medicare Part D claims for 73 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.