Thomas Sullivan, MD
Emergency Medicine Physician · Freeport, IL
Thomas Sullivan, MD is an emergency medicine physician with a practice address in Freeport, Illinois, and NPI 1740258946, issued on Mar 14, 2006. Check the license (Illinois 036-060631, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Thomas Sullivan
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036-060631 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1045 W Stephenson St, Freeport, IL 61032
- Phone
- (815) 599-6000
- Enumerated
- Mar 14, 2006
- Record last updated
- May 12, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 1045 W Stephenson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Baylee Alderman, DPTPhysical Therapist1477447811
- Erich Awender, MDEmergency Medicine Physician1295703510
- Kristen Book, SLPSpeech-Language Pathologist1417204181
- Courtney BraseltonOccupational Therapist1215474358
- Princess Nicole Cabuhat, OTR/LOccupational Therapist1063344323
- Tori Clark, FNP-BCNurse Practitioner1598624629
Verify Thomas Sullivan 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 036-060631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average emergency medicine physician in 2024
11 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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 Sullivan among 3,291 emergency medicine physician records in Illinois
Thomas Sullivan, MD 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 68% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2008 · 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).
8 emergency medicine physician records list a practice address in Freeport
They are 8 of the 480 NPPES records with a practice address in Freeport, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Freeport → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Erich Awender, MDFreeport, IL 610321295703510
- Aileen Diehl, MDFreeport, IL 610321366410680
- Syed Haq, D.O.Freeport, IL 610321063655686
- Joseph Pale, MDFreeport, IL 610321134495658
- Alexander Panagos, MDFreeport, IL 610321285602524
- Carlos Sanchez, MDFreeport, IL 610321164490256
- Dinesh Sharma, MDFreeport, IL 610321649249673
- Ralph Losey, MDGalena, IL 610361447297270
Common questions
What is Thomas Sullivan, MD's NPI number?
Thomas Sullivan, MD's National Provider Identifier (NPI) is 1740258946, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Sullivan, MD located?
The NPPES record lists a practice address at 1045 W Stephenson St, Freeport, IL, 61032. Phone: (815) 599-6000. Providers update this record themselves, so call before visiting.
How can I verify Thomas Sullivan, MD's license?
NPPES lists Illinois license number 036-060631, 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 Sullivan, MD prescribe under Medicare Part D?
In 2024, Thomas Sullivan, MD had 11 Medicare Part D claims; 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.