Quick answers
- Which hospitals does Nathan M. Larsen work at?
- Medicare's official clinician data lists Nathan M. Larsen at 4 hospitals: Thedacare Medical Center - Berlin Inc, Thedacare Medical Center-Waupaca, Thedacare Regional Medical Center - Appleton Inc and Thedacare Regional Medical Center - Neenah. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nathan M. Larsen see patients?
- Medicare's clinician data lists 1 practice location in Fond Du Lac, WI. Call before your visit to confirm the address.
- What is Nathan M. Larsen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Nathan M. Larsen accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan M. Larsen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Nathan M. Larsen?
- (920) 913-4400, as listed in official Medicare / NPI Registry data.
- What is Nathan M. Larsen's NPI number?
- 1992887848. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nathan M. Larsen works
Medicare's Facility Affiliation Data lists Nathan M. Larsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Thedacare Medical Center - Berlin IncBerlin, WI · Critical Access Hospital · CCN 521355
- Thedacare Medical Center-WaupacaWaupaca, WI · Critical Access Hospital · CCN 521334
- Thedacare Regional Medical Center - Appleton IncAppleton, WI · Acute Care Hospital · CCN 520160
- Thedacare Regional Medical Center - NeenahNeenah, WI · Acute Care Hospital · CCN 520045
Practice locations
Addresses where Nathan M. Larsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 755 W Johnson StFond Du Lac, WI 54935 (920) 913‑4400
Group practices
Medicare enrollment lists Nathan M. Larsen as a member of this group (CMS data updated 2026-10-02).
- Thedacare Regional Medical Center - Appleton, Inc14 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Fond Du Lac
Clinicians with the same Medicare primary specialty in Fond Du Lac, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992887848 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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