Quick answers
- Does Amber M. Demerath accept Medicare assignment?
- Yes. Medicare's clinician data says Amber M. Demerath 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 Amber M. Demerath see?
- In 2024, CMS data shows 59 Original Medicare patients and 163 services for Amber M. Demerath. This counts Original Medicare only and measures volume, not quality.
- What is Amber M. Demerath's NPI number?
- 1356072417. 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 Amber M. Demerath, 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 | 59 |
|---|---|
| Services billed to Medicare | 163 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)28 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)12 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%
- Chronic kidney disease75%
- Diabetes59%
- Heart failure51%
- Ischemic heart disease42%
Hospitals where Amber M. Demerath works
Medicare's Facility Affiliation Data lists Amber M. Demerath at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Thedacare Medical Center - New LondonNew London, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521326
- Thedacare Medical Center - Wild RoseWild Rose, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521303
- Thedacare Medical Center-WaupacaWaupaca, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521334
- Thedacare Regional Medical Center - Appleton IncAppleton, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520160
- Thedacare Regional Medical Center - NeenahNeenah, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520045
Practice locations
Addresses where Amber M. Demerath is enrolled with Medicare (CMS data updated October 2, 2026).
- 300 N Commercial St, Suite 200Neenah, WI 54956 (920) 886‑0818
- 670 Cormier RdGreen Bay, WI 54304 (920) 494‑9685
Group practices
Medicare enrollment lists Amber M. Demerath as a member of these groups (CMS data updated October 2, 2026).
- St Vincent Hospital-Hospital Sisters-Third Order of St Francis603 clinicians in the group
- Fox Valley Nephrology Partners S C12 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Neenah
Clinicians with the same Medicare primary specialty in Neenah, WI — not a recommendation.
Other clinicians in St Vincent Hospital-Hospital Sisters-Third Order of St Francis
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356072417 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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