NPPES file of Aug 9, 2026

Marc R. Spiller, M.D.

Emergency Medicine Physician · Downers Grove, IL

Marc R. Spiller, M.D. is an emergency medicine physician with a practice address in Downers Grove, Illinois, and NPI 1093715815, issued on Jul 22, 2005. Check the license (Illinois 036107397, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093715815
Name
Marc R. Spiller
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
036107397 IL
Self-reported in NPPES; status is on the state search
Practice location
3815 Highland Ave, Downers Grove, IL 60515
Phone
(877) 485-4474
Enumerated
Jul 22, 2005
Record last updated
Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040109000998); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 2000
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3815 Highland Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sadiqa Abbas, M.D.Interventional Pain Medicine Physician1528010634
  2. Nicole Ahrens, CRNACertified Registered Nurse Anesthetist1578154340
  3. Aristides Alexander, M.D.Emergency Medicine Physician1881009082
  4. Yorleni Ambrosio, RN, CNSNeonatal Intensive Care Registered Nurse1720465065
  5. Manisa Baker, APNAcute Care Clinical Nurse Specialist1023479508
  6. Michelle BankheadSurgical Assistant1568921039

Verify Marc R. Spiller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036107397
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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66% fewer Medicare Part D claims than the average emergency medicine physician in 2024

76 Medicare Part D claims for 53 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Marc Spiller76
  2. Specialty average226

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

  1. Dupage Emergency Physicians Convenient Care LLCDowners Grove, IL
  2. Dupage Emergency Physicians LtdDowners Grove, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marc R. Spiller among 3,291 emergency medicine physician records in Illinois

Marc R. Spiller, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2000 · median 2012 among the 1,867 with a school on file
  • Record last updated2021 · 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).

23 emergency medicine physician records list a practice address in Downers Grove

They are 23 of the 1,899 NPPES records with a practice address in Downers Grove, and 3,291 emergency medicine physician records in Illinois.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Matthew Belden, M.D.Downers Grove, IL 605151467429811
  2. Andrea Carlson, MDDowners Grove, IL 605151750382974
  3. Thomas Carmody, MDDowners Grove, IL 605151275534406
  4. Stephen Crouch, MDDowners Grove, IL 605151508867730
  5. Bruce Donenberg, MDDowners Grove, IL 605151962403014
  6. Rhonda Konarski, MDDowners Grove, IL 605151558362772
  7. John Korpics, MDDowners Grove, IL 605151811998057
  8. Sonia Mininni, MDDowners Grove, IL 605151891797239

Common questions

What is Marc R. Spiller, M.D.'s NPI number?

Marc R. Spiller, M.D.'s National Provider Identifier (NPI) is 1093715815, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Marc R. Spiller, M.D. located?

The NPPES record lists a practice address at 3815 Highland Ave, Downers Grove, IL, 60515. Phone: (877) 485-4474. Providers update this record themselves, so call before visiting.

How can I verify Marc R. Spiller, M.D.'s license?

NPPES lists Illinois license number 036107397, 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 Marc R. Spiller, M.D. prescribe under Medicare Part D?

In 2024, Marc R. Spiller, M.D. had 76 Medicare Part D claims for 53 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.