Quick answers
- Does Elizabeth K. Groetken accept Medicare assignment?
- Yes. Medicare's clinician data says Elizabeth K. Groetken 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 Elizabeth K. Groetken see?
- In 2024, CMS data shows 170 Original Medicare patients and 472 services for Elizabeth K. Groetken. This counts Original Medicare only and measures volume, not quality.
- What is Elizabeth K. Groetken's NPI number?
- 1760436802. 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 Elizabeth K. Groetken, 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 | 170 |
|---|---|
| Services billed to Medicare | 472 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient complete exam of visual system (92014)142 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)102 services
- Exam of visual field with extended testing (92083)62 services
- Imaging of optic nerve (92133)57 services
- Imaging of retina (92134)46 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 cholesterol69%
- High blood pressure62%
- Arthritis44%
- Diabetes22%
- Chronic kidney disease19%
- Anxiety17%
Practice locations
Addresses where Elizabeth K. Groetken is enrolled with Medicare (CMS data updated October 2, 2026).
- 16 Central Ave NELe Mars, IA 51031
- 16 Central Ave NE, Groetken Family EyecareLe Mars, IA 51031 (712) 546‑8998
- 16 Central Ave NE, PO Box 706Le Mars, IA 51031
Specialties
- Optometryprimary
Other optometrists in Le Mars
Clinicians with the same Medicare primary specialty in Le Mars, IA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Southern California College Of Optometry |
| Graduation year | 1994 (32 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760436802 |
| 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