Quick answers
- Does Katharine J. Denius accept Medicare assignment?
- Yes. Medicare's clinician data says Katharine J. Denius 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 Katharine J. Denius see?
- In 2024, CMS data shows 588 Original Medicare patients and 1,035 services for Katharine J. Denius. This counts Original Medicare only and measures volume, not quality.
- What is Katharine J. Denius's NPI number?
- 1720715881. 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 Katharine J. Denius, 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 | 588 |
|---|---|
| Services billed to Medicare | 1,035 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)231 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)221 services
- Imaging of optic nerve (92133)119 services
- New patient complete exam of visual system (92004)117 services
- Imaging of retina (92134)110 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 cholesterol70%
- High blood pressure66%
- Arthritis43%
- Ischemic heart disease25%
- Anxiety22%
- Diabetes21%
Practice locations
Addresses where Katharine J. Denius is enrolled with Medicare (CMS data updated October 2, 2026).
- 1684 N Prospect AveMilwaukee, WI 53202 (414) 271‑2020
- 17280 W N Ave, Suite 100Brookfield, WI 53045 (414) 271‑2020
Group practices
Medicare enrollment lists Katharine J. Denius as a member of this group (CMS data updated October 2, 2026).
- Milwaukee Eye Care Associates SC9 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Milwaukee
Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.
Other clinicians in Milwaukee Eye Care Associates SC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Birmingham Medical College |
| Graduation year | 2022 (4 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720715881 |
| 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