Leo W. Sullivan., M.D.
Emergency Medicine Physician · Belleville, IL
Leo W. Sullivan., M.D. is an emergency medicine physician with a practice address in Belleville, Illinois, and NPI 1851431670, issued on Feb 8, 2007. Check the license (Illinois 036068595, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leo W. Sullivan.
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036068595 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4500 Memorial Dr, Belleville, IL 62226
- Phone
- (618) 257-5879
- Enumerated
- Feb 8, 2007
- Record last updated
- Jan 6, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (618) 257-6740
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 4500 Memorial Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mohammed Al Hamati, MDHospitalist Physician1851779920
- Yahia Al Turk, MDGastroenterology Physician1487114682
- Md Ali, MDHospitalist Physician1376163261
- Shadi Altwal, M.D.Hospitalist Physician1417992520
- Aloka Amarakone, MDNeurology Physician1407051329
Verify Leo W. 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 036068595Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average emergency medicine physician in 2024
57 Medicare Part D claims for 21 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Levetiracetam13 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.
Leo W. Sullivan. among 3,291 emergency medicine physician records in Illinois
Leo W. Sullivan., M.D. 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 2007, is newer than 32% of them.
- NPI issued2007 · 32% of these records are older, 61% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2016 · 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).
17 emergency medicine physician records list a practice address in Belleville
They are 17 of the 1,404 NPPES records with a practice address in Belleville, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Belleville → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Karen Bertels, MDBelleville, IL 622261548657737
- Thomas Byrne, M.D.Belleville, IL 622261629164611
- Lundy Colvert, M.D.Belleville, IL 622261225179476
- Djiby Diop, M.D.Belleville, IL 622261164562906
- Daniel Kim, MDBelleville, IL 622261053801696
- Kurt Kloss, M.D.Belleville, IL 622261508907247
- Christine Lin, D.O.Belleville, IL 622261336580760
- Neil McClymont, D.O.Belleville, IL 622261033248208
Common questions
What is Leo W. Sullivan., M.D.'s NPI number?
Leo W. Sullivan., M.D.'s National Provider Identifier (NPI) is 1851431670, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Leo W. Sullivan., M.D. located?
The NPPES record lists a practice address at 4500 Memorial Dr, Belleville, IL, 62226. Phone: (618) 257-5879. Providers update this record themselves, so call before visiting.
How can I verify Leo W. Sullivan., M.D.'s license?
NPPES lists Illinois license number 036068595, 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 Leo W. Sullivan., M.D. prescribe under Medicare Part D?
In 2024, Leo W. Sullivan., M.D. had 57 Medicare Part D claims for 21 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.