Adelbert C. Duvel, MD
Internal Medicine Physician · Glen Ellyn, IL
Adelbert C. Duvel, MD is an internal medicine physician with a practice address in Glen Ellyn, Illinois, and NPI 1275508772, issued on Feb 20, 2006. Check the license (Illinois 036055461, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Adelbert C. Duvel
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036055461 IL
Self-reported in NPPES; status is on the state search - Practice location
- 430 Pennsylvania Ave, Glen Ellyn, IL 60137
- Phone
- (630) 469-9200
- Enumerated
- Feb 20, 2006
- Record last updated
- Jan 20, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 036055461 IL
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
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Verify Adelbert C. Duvel 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 036055461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Adelbert C. Duvel among 7,238 internal medicine physician records in Illinois
Adelbert C. Duvel, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2011 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in Glen Ellyn
They are 18 of the 684 NPPES records with a practice address in Glen Ellyn, and 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,238 in Illinois → Every provider in Glen Ellyn → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- John Baird, MDGlen Ellyn, IL 601371851555619
- Walter Briney, M.D.Glen Ellyn, IL 601371659365955
- Jonathan Delew, M.D.Glen Ellyn, IL 601371629060710
- Stephen Gawne, MDGlen Ellyn, IL 601371497729537
- Rita Herzing, M.D.Glen Ellyn, IL 601371316103559
- Mary Kungl, M.D.Glen Ellyn, IL 601371437215076
- Thomas Marshall, M.D.Glen Ellyn, IL 601371043202054
- Carol Olmstead Miecznikowski, MDGlen Ellyn, IL 601371467429456
Common questions
What is Adelbert C. Duvel, MD's NPI number?
Adelbert C. Duvel, MD's National Provider Identifier (NPI) is 1275508772, issued on Feb 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Adelbert C. Duvel, MD located?
The NPPES record lists a practice address at 430 Pennsylvania Ave, Glen Ellyn, IL, 60137. Phone: (630) 469-9200. Providers update this record themselves, so call before visiting.
How can I verify Adelbert C. Duvel, MD's license?
NPPES lists Illinois license number 036055461, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.