David Scott Chudwin, M.D.
Allergy & Immunology Physician · Bourbonnais, IL
David Scott Chudwin, M.D. is an allergy & immunology physician with a practice address in Bourbonnais, Illinois, and NPI 1669472262, issued on Jul 26, 2005. Check the license (Illinois 036-064258, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David Scott Chudwin
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 036-064258 IL
Self-reported in NPPES; status is on the state search - Practice location
- 475 Brown Blvd, Bourbonnais, IL 60914
- Phone
- (815) 933-5092
- Enumerated
- Jul 26, 2005
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (815) 933-5494
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 162 in Illinois → Look up another NPI →
Also registered at 475 Brown Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Nepomuceno, M.D.Family Medicine Physician1437175148
- Reynaldo Nepomuceno, M.D.Family Medicine Physician1447283692
- Avtar Razdan, M.D.Pediatric Adolescent Medicine Physician1376536615
- Michael Sergeant, M.D.Neurology Physician1205965936
Verify David Scott Chudwin 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 036-064258Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
174 Medicare Part D claims for 49 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Ipratropium Bromide32 claims
- Montelukast Sodium23 claims
- Trelegy Ellipta17 claims
- Combivent Respimat13 claims
- Desloratadine11 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.
David Scott Chudwin among 162 allergy & immunology physician records in Illinois
David Scott Chudwin, M.D. is one of 162 allergy & immunology physician records with a practice address in Illinois. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Illinois
There are 162 allergy & immunology physician records in Illinois.
All 162 in Illinois → Every provider in Bourbonnais → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Timothy Jessen, MDFreeport, IL 610321831165034
- Charles Frey, DORockford, IL 611071356321244
- Chester Mellies, MDRockford, IL 611071770563660
- Fatima Mohiuddin, MDRockford, IL 611071578674834
- Ahmad Mourad, M.DRockford, IL 611071861425720
- Kyung Kim, M.D.Niles, IL 607141104932136
- Kirk Shepard, MD, MSChicago, IL 606571982022810
- Ira Lawrence, M.D.Chicago, IL 606471497095590
Common questions
What is David Scott Chudwin, M.D.'s NPI number?
David Scott Chudwin, M.D.'s National Provider Identifier (NPI) is 1669472262, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Scott Chudwin, M.D. located?
The NPPES record lists a practice address at 475 Brown Blvd, Bourbonnais, IL, 60914. Phone: (815) 933-5092. Providers update this record themselves, so call before visiting.
How can I verify David Scott Chudwin, M.D.'s license?
NPPES lists Illinois license number 036-064258, 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 David Scott Chudwin, M.D. prescribe under Medicare Part D?
In 2024, David Scott Chudwin, M.D. had 174 Medicare Part D claims for 49 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.