Quick answers
- Which hospitals does Daniel G. Koster work at?
- Medicare's official clinician data lists Daniel G. Koster at 1 hospital: Bellin Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel G. Koster see patients?
- Medicare's clinician data lists 1 practice location in Green Bay, WI. Call before your visit to confirm the address.
- What is Daniel G. Koster's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Daniel G. Koster accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel G. Koster 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 Daniel G. Koster?
- (920) 433-3486, as listed in official Medicare / NPI Registry data.
- What is Daniel G. Koster's NPI number?
- 1992789689. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel G. Koster works
Medicare's Facility Affiliation Data lists Daniel G. Koster at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bellin Memorial HospitalGreen Bay, WI · Acute Care Hospital · CCN 520049
Practice locations
Addresses where Daniel G. Koster is enrolled with Medicare (CMS data updated 2026-10-02).
- 704 S Webster AveGreen Bay, WI 54301 (920) 433‑3486
Specialties
- Family Practiceprimary
Other family doctors in Green Bay
Clinicians with the same Medicare primary specialty in Green Bay, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992789689 |
| 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