Quick answers
- Does Nicolai S. Gerhartz accept Medicare assignment?
- Yes. Medicare's clinician data says Nicolai S. Gerhartz 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 Nicolai S. Gerhartz see?
- In 2024, CMS data shows 125 Original Medicare patients and 330 services for Nicolai S. Gerhartz. This counts Original Medicare only and measures volume, not quality.
- What is Nicolai S. Gerhartz's NPI number?
- 1790188498. 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 Nicolai S. Gerhartz, 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 | 125 |
|---|---|
| Services billed to Medicare | 330 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)177 services
- Hospital discharge day management, more than 30 minutes (99239)85 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)21 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)21 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 disease49%
- Heart failure42%
- Arthritis41%
- Diabetes37%
Hospitals where Nicolai S. Gerhartz works
Medicare's Facility Affiliation Data lists Nicolai S. Gerhartz 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 Divine Savior HospitalPortage, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520041
- Aspirus Stevens Point Hospital & Clinics, Inc.Stevens Point, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520002
- HSHS St Clare Memorial HospitalOconto Falls, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521310
- St Nicholas HospitalSheboygan, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520044
- Thedacare Medical Center - Berlin IncBerlin, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521355
Practice locations
Addresses where Nicolai S. Gerhartz is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 225 Memorial DrBerlin, WI 54923
- 2817 New Pinery RdPortage, WI 53901 (608) 742‑4131
- 3100 Superior AveSheboygan, WI 53081 (920) 459‑8300
- 835 S Main StOconto Falls, WI 54154
- 855 S Main StOconto Falls, WI 54154
Group practices
Medicare enrollment lists Nicolai S. Gerhartz as a member of these groups (CMS data updated October 2, 2026).
- Thedacare, Incorporated647 clinicians in the group
- St Nicholas Hospital-Sisters of the Third Order of St Francis178 clinicians in the group
- Divine Savior Healthcare Inc141 clinicians in the group
- Aspirus Stevens Point Hospital and Clinics, Inc.134 clinicians in the group
- St Clare Memorial Hospital, Inc61 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Berlin
Clinicians with the same Medicare primary specialty in Berlin, WI — not a recommendation.
Other clinicians in Thedacare, Incorporated
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2018 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790188498 |
| 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