Marc L. Wiener, M.D.
Internal Medicine Physician · Carol Stream, IL
Marc L. Wiener, M.D. is an internal medicine physician with a practice address in Carol Stream, Illinois, and NPI 1861435927, issued on Jun 14, 2006. Check the license (Illinois 036076864, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marc L. Wiener
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036076864 IL
Self-reported in NPPES; status is on the state search - Practice location
- 27W170 Saint Charles RD, Carol Stream, IL 60188
- Phone
- (630) 562-9100
- Enumerated
- Jun 14, 2006
- Record last updated
- Feb 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (630) 562-9172
- Medicaid ID
- 056076864 IL
- Medicare enrollment
- Enrolled (PECOS I20071204000134); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1986
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 27W170 Saint Charles RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pauline Wiener, M.D.Geriatric Psychiatry Physician1073680187
Verify Marc L. Wiener 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 036076864Check 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 internal medicine physician in 2024
750 Medicare Part D claims for 38 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Rosuvastatin Calcium54 claims
- Metoprolol Succinate46 claims
- Atorvastatin Calcium37 claims
- Amlodipine Besylate35 claims
- Labetalol Hcl35 claims
- Furosemide32 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.
Marc L. Wiener among 7,238 internal medicine physician records in Illinois
Marc L. Wiener, M.D. 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. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1986 · median 2003 among the 3,580 with a school on file
- Record last updated2020 · 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).
8 internal medicine physician records list a practice address in Carol Stream
They are 8 of the 383 NPPES records with a practice address in Carol Stream, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Carol Stream → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mark Bednard, DOCarol Stream, IL 601881346212503
- Evelyn Diaz-Jimenez, M.D.Carol Stream, IL 601881043380231
- Maceo Ellison, M.D.Carol Stream, IL 601881700025541
- Nausheen Hasan, M.D.Carol Stream, IL 601881245321207
- Susan Ignatius, MDCarol Stream, IL 601881649374935
- Angelo Miele, MDCarol Stream, IL 601881144326109
- Lawrence Schouten, MDCarol Stream, IL 601881699770164
- Douglas Ambler, MDWheaton, IL 601891154343689
Common questions
What is Marc L. Wiener, M.D.'s NPI number?
Marc L. Wiener, M.D.'s National Provider Identifier (NPI) is 1861435927, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc L. Wiener, M.D. located?
The NPPES record lists a practice address at 27W170 Saint Charles RD, Carol Stream, IL, 60188. Phone: (630) 562-9100. Providers update this record themselves, so call before visiting.
How can I verify Marc L. Wiener, M.D.'s license?
NPPES lists Illinois license number 036076864, 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 L. Wiener, M.D. prescribe under Medicare Part D?
In 2024, Marc L. Wiener, M.D. had 750 Medicare Part D claims for 38 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.