Quick answers
- Does David R. Zettler accept Medicare assignment?
- Yes. Medicare's clinician data says David R. Zettler 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.
- What is David R. Zettler's NPI number?
- 1548708829. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David R. Zettler works
Medicare's Facility Affiliation Data lists David R. Zettler 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.
- St Marys Hospital Medical CenterGreen Bay, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520097
- St Nicholas HospitalSheboygan, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520044
- St Vincent HospitalGreen Bay, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520075
Practice locations
Addresses where David R. Zettler is enrolled with Medicare (CMS data updated October 2, 2026).
- 3113 Saemann AveSheboygan, WI 53081 (920) 496‑4700
- 835 S Van Buren StGreen Bay, WI 54301 (920) 496‑4700
Group practices
Medicare enrollment lists David R. Zettler 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
- St Nicholas Hospital-Sisters of the Third Order of St Francis178 clinicians in the group
Specialties
- Family Practiceprimary
- Sports Medicinealso
Other family doctors in Sheboygan
Clinicians with the same Medicare primary specialty in Sheboygan, 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
| Credential | DO |
|---|---|
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548708829 |
| 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
- 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