Stephen Thomas Treacy
Orthodontics and Dentofacial Orthopedics Dentistry · Chicago, IL
Stephen Thomas Treacy is an orthodontics and dentofacial orthopedics dentistry with a practice address in Chicago, Illinois, and NPI 1609456771, issued on Apr 12, 2021. Check the license (Illinois 019033126, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephen Thomas Treacy
- Primary taxonomy
- Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X
- License numbers
- 019033126 IL
13650 NC
10725 SC
Self-reported in NPPES; status is on the state search - Practice location
- 801 S Paulina St RM 131, Chicago, IL 60612
- Phone
- (860) 372-0515
- Enumerated
- Apr 12, 2021
- Record last updated
- Jul 8, 2026
- Entity
- Type 1 · individual
8 nearest orthodontics and dentofacial orthopedics dentistry records → All 473 in Illinois → Look up another NPI →
Also registered at 801 S Paulina St RM 131
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mohammed Elnagar, DDS,MSCOrthodontics and Dentofacial Orthopedics Dentistry1285124792
- Lindsay Fisher, DMDDentist1003705567
- Sophie MoonGeneral Practice Dentistry1457970147
- Amanda Nikho, DMDGeneral Practice Dentistry1689313918
- Flavio Sanchez, BDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1013414655
- Youngjae Sung, DDSOrthodontics and Dentofacial Orthopedics Dentistry1033845524
Verify Stephen Thomas Treacy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 019033126Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $24.82
1 payment: food and beverage; the largest payer was Solventum Corporation. The 7,622 providers of this specialty with any payment received $1,641.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Stephen Thomas Treacy among 473 orthodontics and dentofacial orthopedics dentistry records in Illinois
Stephen Thomas Treacy is one of 473 orthodontics and dentofacial orthopedics dentistry records with a practice address in Illinois. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223X0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthodontics and Dentofacial Orthopedics Dentistry providers in Illinois
There are 473 orthodontics and dentofacial orthopedics dentistry records in Illinois.
All 473 in Illinois → Every provider in Chicago → Orthodontics and Dentofacial Orthopedics Dentistry nationwide →
The 8 orthodontics and dentofacial orthopedics dentistry records with the nearest ZIP codes
- Pheba Abraham, DMDChicago, IL 606121356964480
- Veerasathpurush Allareddy, BDSChicago, IL 606121699934000
- Jessica Begley, DDSChicago, IL 606121528760394
- Mohammed Elnagar, DDS,MSCChicago, IL 606121285124792
- Carlotta Evans, D.D.S.Chicago, IL 606121124018841
- John Grubb, DDSChicago, IL 606121154533461
- Shehab HelalChicago, IL 606121154737047
- Sara Kahng, DDSChicago, IL 606121346961208
Common questions
What is Stephen Thomas Treacy's NPI number?
Stephen Thomas Treacy's National Provider Identifier (NPI) is 1609456771, issued on Apr 12, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Thomas Treacy located?
The NPPES record lists a practice address at 801 S Paulina St RM 131, Chicago, IL, 60612. Phone: (860) 372-0515. Providers update this record themselves, so call before visiting.
How can I verify Stephen Thomas Treacy's license?
NPPES lists Illinois license number 019033126, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity 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.