Dr. Marc L. Wiener, MD
- Medicare services, 2024
- 260
- Medicare patients, 2024
- 39
- Part D claims, 2024
- 750
- Hospital affiliations
- 2
- State license
- 1
- Practice address
- 25 North Winfield Road, Winfield, IL 60190
- Practice phone
- Call (630) 682-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Wiener's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Marc L. Wiener is an internist in Winfield, Illinois
Dr. Wiener practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.
Dr. Wiener's NPI, 1861435927, was assigned on June 14, 2006. Dr. Wiener graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1986. Dr. Wiener holds Illinois license 036076864.
- NPI
- 1861435927NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022107739
- NPI enumeration date
- June 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 682-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc L. Wiener practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois
Dr. Wiener's primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.
- Northwestern Medicine Central DuPage Hospital25 North Winfield Road, Winfield, IL 60190 · Du Page CountyPhone(630) 682-1600
Source: Dmand AI Affiliation Data
Dr. Marc L. Wiener is affiliated with 6 sites of care
Dr. Wiener's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dr. Wiener is also affiliated with Northwestern Medicine Delnor Hospital. Dmand AI also links Dr. Wiener to 1 more breast imaging center, 1 clinical lab, 1 physician office and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marc L. Wiener's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wiener practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Central DuPage Hospital | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc L. Wiener is one of 5,652 internists in Illinois
Internal medicine is Dr. Wiener's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Wiener is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Wiener
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Marc L. Wiener billed Medicare for 260 services in 2024
CMS data shows 260 Medicare services from Dr. Wiener across 3 procedure codes in 2024, for 39 Medicare patients. Medicare paid $19,494 for them. Every service was in an office.
Dr. Wiener's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2222024: 2293%
- Other services
- 2023: 282024: 3111%
Dr. Wiener compared with the Illinois median for internists, 2024
- Dr. Wiener
- Illinois median
- Medicare services
- 260vs 56654% below
- Medicare patients
- 39vs 20881% below
- Part D claims
- 503vs 28477% above
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Wiener's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marc L. Wiener treated 39 Medicare patients in 2024, average age 77
CMS counts 39 Medicare patients who saw Dr. Wiener in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high blood pressure, and 44% have diabetes. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wiener's median patient age at 74, with 20% women.
Dr. Wiener's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Wiener's Medicare patients by sex, 2024
- Women1128%
- Men2872%
Chronic conditions among Dr. Wiener's Medicare patients, 2024
- High blood pressure75%
- Diabetes44%
- High cholesterol38%
- Chronic kidney disease28%
- Ischemic heart disease28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wiener's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women20%
- Men80%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marc L. Wiener wrote 750 Medicare Part D claims in 2024
In 2024, Dr. Wiener wrote 750 Medicare Part D claims for 38 patients. 84% of them were for generic drugs. CMS names the drug for 503 of them, across 24 drugs with 11 or more claims each, at $62,110 in total drug cost. In 2023, CMS named 397 claims across 18 drugs.
Dr. Wiener's Part D claims by kind of drug, 2024
- Generic632 claims84%
- Brand-name104 claims14%
- Other14 claims2%
Dr. Wiener's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Wiener's Part D claims, 2024
- Antibiotics3%22 of 750 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3972024: 50327%
Drugs named by CMS: 24 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Marc L. Wiener takes part in Medicare
Dr. Wiener accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Marc L. Wiener graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Wiener graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marc L. Wiener's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Marc L. Wiener
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Marc L. Wiener's NPI number?
Dr. Marc L. Wiener's NPI number is 1861435927. It was assigned on June 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc L. Wiener?
Dr. Marc L. Wiener is an internist in Winfield, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Marc L. Wiener practice?
Dr. Wiener practices at 25 North Winfield Road, Winfield, IL 60190. Dr. Wiener's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Wiener to 1 breast imaging center, 1 clinical lab, 1 physician office and 1 home health agency.
What is Dr. Marc L. Wiener's office phone number?
The practice phone on file for Dr. Wiener is (630) 682-1600.
What is Dr. Marc L. Wiener's medical license number?
Dr. Wiener holds Illinois license 036076864.
Which hospitals is Dr. Marc L. Wiener affiliated with?
Dr. Wiener practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois. Dr. Wiener is also affiliated with Northwestern Medicine Delnor Hospital.
Does Dr. Marc L. Wiener accept Medicare?
Yes. CMS data shows Dr. Wiener billed Medicare for 260 services in 2024, and Dr. Wiener accepts Medicare assignment.
How many Medicare patients does Dr. Marc L. Wiener see?
CMS counts 39 Medicare patients who saw Dr. Wiener in 2024, with an average age of 77.
What services does Dr. Marc L. Wiener bill to Medicare?
In 2024, Dr. Wiener's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Marc L. Wiener go to medical school?
Dr. Wiener graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1986.
What drugs does Dr. Marc L. Wiener prescribe most?
In 2024 Medicare Part D data, Dr. Wiener's most prescribed drugs by claims were Rosuvastatin Calcium, Metoprolol Succinate and Atorvastatin Calcium.
How long has Dr. Marc L. Wiener been practicing?
Dr. Wiener graduated from medical school in 1986, 40 years ago.
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