Quick answers
- Does Lia M. Ziemann accept Medicare assignment?
- Yes. Medicare's clinician data says Lia M. Ziemann 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 Lia M. Ziemann see?
- In 2024, CMS data shows 15 Original Medicare patients and 18 services for Lia M. Ziemann. This counts Original Medicare only and measures volume, not quality.
- What is Lia M. Ziemann's NPI number?
- 1801343686. 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 Lia M. Ziemann, 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 | 15 |
|---|---|
| Services billed to Medicare | 18 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Comprehensive hearing and speech recognition test (92557)13 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 cholesterol73%
Practice locations
Addresses where Lia M. Ziemann is enrolled with Medicare (CMS data updated October 2, 2026).
- 637 W State StGeneva, IL 60134 (630) 232‑9153
Group practices
Medicare enrollment lists Lia M. Ziemann as a member of this group (CMS data updated October 2, 2026).
- Geneva Hearing Services PC3 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Geneva
Clinicians with the same Medicare primary specialty in Geneva, IL — not a recommendation.
Other clinicians in Geneva Hearing Services PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2016 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801343686 |
| 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