Quick answers
- Does Heidi L. Grosskopf accept Medicare assignment?
- Yes. Medicare's clinician data says Heidi L. Grosskopf 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 Heidi L. Grosskopf see?
- In 2024, CMS data shows 50 Original Medicare patients and 96 services for Heidi L. Grosskopf. This counts Original Medicare only and measures volume, not quality.
- What is Heidi L. Grosskopf's NPI number?
- 1104863026. 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 Heidi L. Grosskopf, 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 | 50 |
|---|---|
| Services billed to Medicare | 96 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Comprehensive hearing and speech recognition test (92557)47 services
- Test to assess middle ear function (92567)45 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 cholesterol75%
- High blood pressure64%
- Arthritis36%
- Ischemic heart disease28%
- Atrial fibrillation22%
Hospitals where Heidi L. Grosskopf works
Medicare's Facility Affiliation Data lists Heidi L. Grosskopf 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.
- Aspirus Rhinelander HospitalRhinelander, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520019
Practice locations
Addresses where Heidi L. Grosskopf is enrolled with Medicare (CMS data updated October 2, 2026).
- 2251 N Shore Dr, Suite 100Rhinelander, WI 54501 (715) 361‑2000
Group practices
Medicare enrollment lists Heidi L. Grosskopf as a member of this group (CMS data updated October 2, 2026).
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.574 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Rhinelander
Clinicians with the same Medicare primary specialty in Rhinelander, WI — not a recommendation.
Other clinicians in Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104863026 |
| 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