Quick answers
- Does Catherine Kerr-Niermann accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine Kerr-Niermann 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 Catherine Kerr-Niermann see?
- In 2024, CMS data shows 108 Original Medicare patients and 206 services for Catherine Kerr-Niermann. This counts Original Medicare only and measures volume, not quality.
- What is Catherine Kerr-Niermann's NPI number?
- 1619303070. 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 Catherine Kerr-Niermann, 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 | 108 |
|---|---|
| Services billed to Medicare | 206 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 81 |
Most frequent services
- Photography of the retina (92250)66 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)38 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)22 services
- Exam of visual field with intermediate testing (92082)20 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)17 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%
- Arthritis50%
- Chronic kidney disease31%
- Atrial fibrillation27%
- Diabetes26%
Practice locations
Addresses where Catherine Kerr-Niermann is enrolled with Medicare (CMS data updated October 2, 2026).
- 219 E Cole AveWheaton, IL 60187 (630) 690‑7115
- 3241 S Michigan AveChicago, IL 60616 (312) 949‑7751
Group practices
Medicare enrollment lists Catherine Kerr-Niermann as a member of these groups (CMS data updated October 2, 2026).
- Illinois College of Optometry76 clinicians in the group
- Spectrios Institute for Low Vision4 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Wheaton
Clinicians with the same Medicare primary specialty in Wheaton, IL — not a recommendation.
Other clinicians in Illinois College of Optometry
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Southern College Of Optometry |
| Graduation year | 2013 (13 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619303070 |
| 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