Quick answers
- Does Sarah A. Berte-Greinert accept Medicare assignment?
- Yes. Medicare's clinician data says Sarah A. Berte-Greinert 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 Sarah A. Berte-Greinert see?
- In 2024, CMS data shows 57 Original Medicare patients and 105 services for Sarah A. Berte-Greinert. This counts Original Medicare only and measures volume, not quality.
- What is Sarah A. Berte-Greinert's NPI number?
- 1295264463. 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 Sarah A. Berte-Greinert, 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 | 57 |
|---|---|
| Services billed to Medicare | 105 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 63 |
Most frequent services
- Psychiatric diagnostic evaluation (90791)50 services
- Telehealth originating site facility fee (Q3014)50 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 pressure72%
- Anxiety72%
- Depression67%
- High cholesterol58%
- Diabetes35%
- Chronic kidney disease30%
Practice locations
Addresses where Sarah A. Berte-Greinert is enrolled with Medicare (CMS data updated October 2, 2026).
- 180 10th St SE, Suite 201Le Mars, IA 51031 (712) 546‑4624
- 710 Lake St, Suite 2Spirit Lake, IA 51360 (712) 320‑8112
Group practices
Medicare enrollment lists Sarah A. Berte-Greinert as a member of this group (CMS data updated October 2, 2026).
- Plains Area Mental Health Inc21 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Le Mars
Clinicians with the same Medicare primary specialty in Le Mars, IA — not a recommendation.
Other clinicians in Plains Area Mental Health Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | University Of Iowa, Rj & L Carver College Of Medicine |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1295264463 |
| 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