Dr. Ilias Oikonomopoulos, MD
- Medicare services, 2024
- 3,454
- Medicare patients, 2024
- 282
- Part D claims, 2024
- 2,585
- Hospital affiliations
- 5
- Industry payments
- $309
- Practice address
- 3200 E Racine St, Janesville, WI 53546
- Practice phone
- Call (608) 371-8881
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Imaging Services at SSM Health Dean Medical Group
Mammography / Breast Imaging Center · Janesville, Wisconsin
Find Dr. Oikonomopoulos' 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. Ilias Oikonomopoulos is a rheumatologist in Janesville, Wisconsin
Dr. Oikonomopoulos practices at Imaging Services at SSM Health Dean Medical Group in Janesville, Wisconsin.
Dr. Oikonomopoulos' NPI, 1639334832, was assigned on July 28, 2008. Dr. Oikonomopoulos holds Wisconsin license 70464-20.
- NPI
- 1639334832NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810114295
- NPI enumeration date
- July 28, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (608) 371-8881
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ilias Oikonomopoulos practices at Imaging Services at SSM Health Dean Medical Group in Janesville, Wisconsin
Dr. Oikonomopoulos' primary practice is Imaging Services at SSM Health Dean Medical Group, at 3200 E Racine St, Janesville, WI 53546. The practice phone is (608) 371-8881.
- Imaging Services at SSM Health Dean Medical Group3200 E Racine St, Janesville, WI 53546Phone(608) 371-8881
Source: Dmand AI Affiliation Data
Dr. Ilias Oikonomopoulos is affiliated with 7 sites of care and 1 medical group
Dr. Oikonomopoulos' primary practice is Imaging Services at SSM Health Dean Medical Group in Janesville, Wisconsin. Dr. Oikonomopoulos is also affiliated with SSM Health St. Mary's Hospital - Janesville. The medical group on file is SSM Health Dean Medical Group. Dmand AI also links Dr. Oikonomopoulos to 4 more hospitals and 1 group practice or clinic, each named with a free account. Dr. Oikonomopoulos' employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ilias Oikonomopoulos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oikonomopoulos practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Imaging Services at SSM Health Dean Medical Group | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ilias Oikonomopoulos is one of 138 rheumatologists in Wisconsin
Rheumatology is Dr. Oikonomopoulos' primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Oikonomopoulos is licensed in Wisconsin.
Specialties and state licenses
- Rheumatology, WisconsinPrimary
Rheumatologists near Dr. Oikonomopoulos
Counts of rheumatologists 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. Ilias Oikonomopoulos billed Medicare for 3,454 services in 2024
CMS data shows 3,454 Medicare services from Dr. Oikonomopoulos across 10 procedure codes in 2024, for 282 Medicare patients. Medicare paid $89,153 for them. Every service was in an office.
Dr. Oikonomopoulos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2,6502024: 2,34012%
- Office and hospital visits
- 2023: 3902024: 45416%
- Lab and pathology
- 2023: 1772024: 21622%
- Other services
- 2023: 142024: 2081386%
- Surgery
- 2023: 1652024: 19418%
- Tests and treatments
- 2023: 562024: 4225%
Dr. Oikonomopoulos compared with the Wisconsin median for rheumatologists, 2024
- Dr. Oikonomopoulos
- Wisconsin median
- Medicare services
- 3,454vs 5146.7 times
- Medicare patients
- 282vs 19942% above
- Part D claims
- 2,430vs 1,0402.3 times
Medians across 143 rheumatologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Oikonomopoulos' 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Oikonomopoulos and other rheumatologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ilias Oikonomopoulos treated 282 Medicare patients in 2024, average age 72
CMS counts 282 Medicare patients who saw Dr. Oikonomopoulos in 2024. The largest group is 65 to 74, with 122 patients. 63% of them have arthritis, and 63% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Oikonomopoulos' median patient age at 69, with 70% women.
Dr. Oikonomopoulos' Medicare patients by age, 2024
Dr. Oikonomopoulos' Medicare patients by sex, 2024
- Women19870%
- Men8430%
Chronic conditions among Dr. Oikonomopoulos' Medicare patients, 2024
- Arthritis63%
- High cholesterol63%
- High blood pressure62%
- Osteoporosis36%
- Anxiety23%
- Diabetes23%
- Mood disorders23%
- Chronic kidney disease20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oikonomopoulos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ilias Oikonomopoulos wrote 2,585 Medicare Part D claims in 2024
In 2024, Dr. Oikonomopoulos wrote 2,585 Medicare Part D claims for 392 patients. 85% of them were for generic drugs. CMS names the drug for 2,430 of them, across 32 drugs with 11 or more claims each, at $1,799,332 in total drug cost. In 2023, CMS named 2,293 claims across 27 drugs.
Dr. Oikonomopoulos' Part D claims by kind of drug, 2024
- Generic2,206 claims85%
- Brand-name379 claims15%
Dr. Oikonomopoulos' 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. Oikonomopoulos' Part D claims, 2024
- Opioids6%150 of 2,585 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: 2,2932024: 2,4306%
Drugs named by CMS: 32 in 2024, 27 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
Dr. Ilias Oikonomopoulos offers telehealth to Medicare patients
Dr. Oikonomopoulos accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Oikonomopoulos as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ilias Oikonomopoulos received $309 in industry payments from 2017 to 2024
CMS Open Payments shows 6 general payments to Dr. Oikonomopoulos from 5 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 89% of the total. Abbvie Inc. paid the most, $96.
General payments to Dr. Oikonomopoulos by program year, 2017 to 2024
General payments to Dr. Oikonomopoulos by kind, 2017 to 2024
- Food and beverage$27489%
- Education$3511%
Companies that paid Dr. Oikonomopoulos the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ilias Oikonomopoulos'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Ilias Oikonomopoulos
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. Ilias Oikonomopoulos' NPI number?
Dr. Ilias Oikonomopoulos' NPI number is 1639334832. It was assigned on July 28, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ilias Oikonomopoulos?
Dr. Ilias Oikonomopoulos is a rheumatologist in Janesville, Wisconsin. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Ilias Oikonomopoulos practice?
Dr. Oikonomopoulos practices at 3200 E Racine St, Janesville, WI 53546. Dr. Oikonomopoulos' primary practice is Imaging Services at SSM Health Dean Medical Group in Janesville, Wisconsin. Dmand AI also links Dr. Oikonomopoulos to 4 hospitals and 1 group practice or clinic.
What is Dr. Ilias Oikonomopoulos' office phone number?
The practice phone on file for Dr. Oikonomopoulos is (608) 371-8881.
What is Dr. Ilias Oikonomopoulos' medical license number?
Dr. Oikonomopoulos holds Wisconsin license 70464-20.
Which hospitals is Dr. Ilias Oikonomopoulos affiliated with?
Dr. Oikonomopoulos is affiliated with SSM Health St. Mary's Hospital - Janesville. Dmand AI links Dr. Oikonomopoulos to 4 more hospitals.
What medical group is Dr. Ilias Oikonomopoulos part of?
Dr. Oikonomopoulos is linked to SSM Health Dean Medical Group.
Does Dr. Ilias Oikonomopoulos accept Medicare?
Yes. CMS data shows Dr. Oikonomopoulos billed Medicare for 3,454 services in 2024, and Dr. Oikonomopoulos accepts Medicare assignment.
Does Dr. Ilias Oikonomopoulos offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Oikonomopoulos as offering telehealth services.
How many Medicare patients does Dr. Ilias Oikonomopoulos see?
CMS counts 282 Medicare patients who saw Dr. Oikonomopoulos in 2024, with an average age of 72.
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What services does Dr. Ilias Oikonomopoulos bill to Medicare?
In 2024, Dr. Oikonomopoulos' most billed Medicare services were injected or infused drug (J0897), office visit, established patient (99214) and medicare service (G2211).
What drugs does Dr. Ilias Oikonomopoulos prescribe most?
In 2024 Medicare Part D data, Dr. Oikonomopoulos' most prescribed drugs by claims were Prednisone, Methotrexate and Hydroxychloroquine Sulfate.
Has Dr. Ilias Oikonomopoulos received payments from drug or device companies?
CMS Open Payments shows $309 in general payments to Dr. Oikonomopoulos from 5 companies from 2017 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Ilias Oikonomopoulos been practicing?
Dr. Oikonomopoulos graduated from medical school in 2004, 22 years ago.
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