Dominique C. D'Souza, MD
Family Medicine Physician · O Fallon, IL
Dominique C. D'Souza, MD is a family medicine physician with a practice address in O Fallon, Illinois, and NPI 1861078206, issued on Mar 23, 2021. Check the license (Illinois 036.169372, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Dominique C. D'Souza
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036.169372 IL
036169372 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3 Saint Elizabeth Blvd Ste 4000, O Fallon, IL 62269
- Phone
- (618) 233-7880
- Enumerated
- Mar 23, 2021
- Record last updated
- Aug 8, 2024
- Medicare enrollment
- Enrolled (PECOS I20240822003253); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 3 Saint Elizabeth Blvd Ste 4000
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eyasu AdunaStudent in an Organized Health Care Education/Training Program1548062532
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- David Bailey, DOStudent in an Organized Health Care Education/Training Program1730870635
- Benjamin Beggs, MDFamily Medicine Physician1386174381
- Alex BelongyStudent in an Organized Health Care Education/Training Program1144087511
- Christina Bereda, D.O.Family Medicine Physician1437386083
Verify Dominique C. D'Souza 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 036.169372Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average family medicine physician in 2024
854 Medicare Part D claims for 180 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Ozempic42 claims
- Atorvastatin Calcium41 claims
- Amlodipine Besylate35 claims
- Gabapentin35 claims
- Lisinopril27 claims
- Prednisone23 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.
Bills Medicare through 2 group practices
- Cep America-Illinois Hospitalists, LLPO Fallon, IL
- St Elizabeths Hospital OF The Hospital Sisters OF The Third OrderO Fallon, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dominique C. D'Souza among 6,215 family medicine physician records in Illinois
Dominique C. D'Souza, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 84% of them.
- NPI issued2021 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2021 · median 2006 among the 3,714 with a school on file
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 family medicine physician records list a practice address in O Fallon
They are 44 of the 1,077 NPPES records with a practice address in O Fallon, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in O Fallon → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Garner, DOShiloh, IL 622691285612242
- Marjorie Guthrie, M.D.O Fallon, IL 622691366490146
- Nell Hennon, D.O.O Fallon, IL 622691992739221
- James Hitchcock, D.O.Shiloh, IL 622691295725174
- James Lundy, MDO Fallon, IL 622691245287085
- Jacob Marshall, M.D.O Fallon, IL 622691922081249
- David McCarthy, MDO Fallon, IL 622691346242799
- Scott Morrison, MDO Fallon, IL 622691508858713
Common questions
What is Dominique C. D'Souza, MD's NPI number?
Dominique C. D'Souza, MD's National Provider Identifier (NPI) is 1861078206, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Dominique C. D'Souza, MD located?
The NPPES record lists a practice address at 3 Saint Elizabeth Blvd Ste 4000, O Fallon, IL, 62269. Phone: (618) 233-7880. Providers update this record themselves, so call before visiting.
How can I verify Dominique C. D'Souza, MD's license?
NPPES lists Illinois license number 036.169372, 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 Dominique C. D'Souza, MD prescribe under Medicare Part D?
In 2024, Dominique C. D'Souza, MD had 854 Medicare Part D claims for 180 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.