Quick answers
- Does Linda M. Gruener accept Medicare assignment?
- Yes. Medicare's clinician data says Linda M. Gruener 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 Linda M. Gruener see?
- In 2024, CMS data shows 1,271 Original Medicare patients and 14,091 services for Linda M. Gruener. This counts Original Medicare only and measures volume, not quality.
- What is Linda M. Gruener's NPI number?
- 1295700490. 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 Linda M. Gruener, 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 | 1,271 |
|---|---|
| Services billed to Medicare | 14,091 |
| Different services or procedures | 81 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, gadobutrol, 0.1 ml (A9585)9,360 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)3,250 services
- X-ray of chest, 2 views (71046)206 services
- Mri scan of lower spinal canal without contrast (72148)171 services
- Mri scan of brain before and after contrast (70553)68 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 cholesterol75%
- High blood pressure72%
- Arthritis56%
- Ischemic heart disease29%
- Diabetes25%
- Chronic kidney disease24%
Practice locations
Addresses where Linda M. Gruener is enrolled with Medicare (CMS data updated October 2, 2026).
- 430 Pennsylvania AveGlen Ellyn, IL 60137 (630) 469‑9200
Group practices
Medicare enrollment lists Linda M. Gruener as a member of this group (CMS data updated October 2, 2026).
- Dupage Medical Group Ltd1,322 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Glen Ellyn
Clinicians with the same Medicare primary specialty in Glen Ellyn, 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 | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295700490 |
| 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