Thomas Johnston, MD
Emergency Medicine Physician · Springfield, IL
Thomas Johnston, MD is an emergency medicine physician with a practice address in Springfield, Illinois, and NPI 1184517260, issued on May 29, 2025. Check the license (Illinois 125085760, 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 Johnston
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 125085760 IL
Self-reported in NPPES; status is on the state search - Practice location
- 701 N 1St, Springfield, IL 62702
- Phone
- (217) 545-3518
- Enumerated
- May 29, 2025
- Record last updated
- May 29, 2025
- Fax
- (217) 545-2711
- Entity
- Type 1 · individual
Also registered at 701 N 1St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sydney Brewer, MDEmergency Medicine Physician1497449730
- Sean Kostolansky, D.O.Emergency Medicine Physician1871976548
- Miguel Ortiz Rivera, MDSurgery Physician1386276392
- Tara Trent, PA-CPhysician Assistant1295174779
- William Zelkovich, M.D.Diagnostic Radiology Physician1982915302
Verify Thomas Johnston 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 125085760Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
126 emergency medicine physician records list a practice address in Springfield
They are 126 of the 4,997 NPPES records with a practice address in Springfield, and 3,291 emergency medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 126 in Springfield → All 3,291 in Illinois → Every provider in Springfield →
Other emergency medicine physician records in Illinois
- Osama Aaflaq, M.D.Carbondale, IL1083663520
- Suresh Abad, M.D.Vernon Hills, IL1639100126
- Albert Abalos, M.D.Elmhurst, IL1881983484
- Habib Abbasi, M.D.Joliet, IL1902832835
- Andrew Abbeg, D.O.Greenville, IL1548490311
- Ryan Abbott, DOChicago, IL1477243517
- Ahmad Abdulla, MDOak Lawn, IL1467202556
- Zakaria Abdulnabi, M.D.Urbana, IL1790135499
- Aziz Abed, M.D.Harvey, IL1477874154
- Logan Abel, MDChicago, IL1447900592
Common questions
What is Thomas Johnston, MD's NPI number?
Thomas Johnston, MD's National Provider Identifier (NPI) is 1184517260, issued on May 29, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Johnston, MD located?
The NPPES record lists a practice address at 701 N 1St, Springfield, IL, 62702. Phone: (217) 545-3518. Providers update this record themselves, so call before visiting.
How can I verify Thomas Johnston, MD's license?
NPPES lists Illinois license number 125085760, 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.