August Didion Sigelko, MD
Critical Care Medicine (Internal Medicine) Physician · Aurora, IL
August Didion Sigelko, MD is a critical care medicine (internal medicine) physician with a practice address in Aurora, Illinois, and NPI 1053815225, issued on Mar 21, 2018. Check the license (Illinois 036160895, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- August Didion Sigelko
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 036160895 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2040 Ogden Ave Ste 401, Aurora, IL 60504
- Phone
- (630) 499-7500
- Enumerated
- Mar 21, 2018
- Record last updated
- Jul 1, 2026
- Fax
- (630) 898-3970
- Medicare enrollment
- Enrolled (PECOS I20260605000516); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 281 in Illinois → Look up another NPI →
Also registered at 2040 Ogden Ave Ste 401
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify August Didion Sigelko 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 036160895Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
141 Medicare Part D claims for 33 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 65% of claims.
Most prescribed
- Incruse Ellipta30 claims
- Montelukast Sodium18 claims
- Trelegy Ellipta15 claims
- Breo Ellipta12 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.
August Didion Sigelko among 281 critical care medicine (internal medicine) physician records in Illinois
August Didion Sigelko, MD is one of 281 critical care medicine (internal medicine) physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 14% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2018 · median 2008 among the 226 with a school on file
- Record last updated2026 · 22% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Illinois
There are 281 critical care medicine (internal medicine) physician records in Illinois.
All 281 in Illinois → Every provider in Aurora → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Abigail Doyle, D.O.Aurora, IL 605041861755498
- Kevin Ferriter, MDAurora, IL 605041619430535
- Hesham Hassaballa, M.D.Aurora, IL 605041861440893
- Tianyi Swartz, MDAurora, IL 605041912402405
- Jack Zhao, MDAurora, IL 605041376163865
- Pablo Garcia, MDDowners Grove, IL 605151114141066
- Khaja Siraj, D.O.Downers Grove, IL 605151568993657
- Edward Garrity, MDBurr Ridge, IL 605271376606897
Common questions
What is August Didion Sigelko, MD's NPI number?
August Didion Sigelko, MD's National Provider Identifier (NPI) is 1053815225, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is August Didion Sigelko, MD located?
The NPPES record lists a practice address at 2040 Ogden Ave Ste 401, Aurora, IL, 60504. Phone: (630) 499-7500. Providers update this record themselves, so call before visiting.
How can I verify August Didion Sigelko, MD's license?
NPPES lists Illinois license number 036160895, 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 August Didion Sigelko, MD prescribe under Medicare Part D?
In 2024, August Didion Sigelko, MD had 141 Medicare Part D claims for 33 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.