Quick answers
- Which hospitals does David Groteluschen work at?
- Medicare's official clinician data lists David Groteluschen at 5 hospitals: Ascension NE Wisconsin - St Elizabeth Campus, Door County Medical Center, OSF St Francis Hospital and Medical Group, St Marys Hospital Medical Center and St Vincent Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David Groteluschen see patients?
- Medicare's clinician data lists 3 practice locations, including Appleton, WI, Escanaba, MI and Green Bay, WI. Call before your visit to confirm the address.
- What is David Groteluschen's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
- Does David Groteluschen accept Medicare assignment?
- Yes. Medicare's clinician data says David Groteluschen 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 David Groteluschen?
- (920) 738-2000, as listed in official Medicare / NPI Registry data.
- What is David Groteluschen's NPI number?
- 1679538011. 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 Groteluschen works
Medicare's Facility Affiliation Data lists David Groteluschen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension NE Wisconsin - St Elizabeth CampusAppleton, WI · Acute Care Hospital · CCN 520009
- Door County Medical CenterSturgeon Bay, WI · Critical Access Hospital · CCN 521358
- OSF St Francis Hospital and Medical GroupEscanaba, MI · Critical Access Hospital · CCN 231337
- St Marys Hospital Medical CenterGreen Bay, WI · Acute Care Hospital · CCN 520097
- St Vincent HospitalGreen Bay, WI · Acute Care Hospital · CCN 520075
Practice locations
Addresses where David Groteluschen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1506 S Oneida StAppleton, WI 54915 (920) 738‑2000
- 3409 Ludington St, Suite 200Escanaba, MI 49829 (906) 786‑7600
- 835 S Van Buren StGreen Bay, WI 54301 (920) 433‑0111
Group practices
Medicare enrollment lists David Groteluschen as a member of these groups (CMS data updated 2026-10-02).
- OSF Multi-Specialty Group2,114 clinicians in the group
- St Vincent Hospital-Hospital Sisters-Third Order of St Francis603 clinicians in the group
- Ascension NE Wisconsin, Inc19 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Appleton
Clinicians with the same Medicare primary specialty in Appleton, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679538011 |
| 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