Quick answers
- Does Irina Domjan accept Medicare assignment?
- Yes. Medicare's clinician data says Irina Domjan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Irina Domjan see?
- In 2024, CMS data shows 141 Original Medicare patients and 865 services for Irina Domjan. This counts Original Medicare only and measures volume, not quality.
- What is Irina Domjan's NPI number?
- 1578771002. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Irina Domjan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 141 |
|---|---|
| Services billed to Medicare | 865 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)297 services
- Insertion of needle into vein for collection of blood sample (36415)57 services
- Face-to-face behavioral counseling for obesity, 15 minutes (G0447)56 services
- Insulin measurement, total (83525)31 services
- Cyanocobalamin (vitamin b-12) level (82607)29 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes28%
- Ischemic heart disease28%
- Anxiety25%
Practice locations
Addresses where Irina Domjan is enrolled with Medicare (CMS data updated October 2, 2026).
- 25 N Winfield Rd, Suite 400Winfield, IL 60190 (630) 790‑1872
Group practices
Medicare enrollment lists Irina Domjan as a member of this group (CMS data updated October 2, 2026).
- Dupage Medical Group Ltd1,322 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Winfield
Clinicians with the same Medicare primary specialty in Winfield, IL — not a recommendation.
Other clinicians in Dupage Medical Group Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1578771002 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians