Quick answers
- Does Karl Meier accept Medicare assignment?
- Yes. Medicare's clinician data says Karl Meier 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 Karl Meier's NPI number?
- 1669058004. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Karl Meier works
Medicare's Facility Affiliation Data lists Karl Meier 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.
- Guam Memorial Hospital AuthorityTamuning, GU · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 650001
Practice locations
Addresses where Karl Meier is enrolled with Medicare (CMS data updated October 2, 2026).
- 850 Gov Carlos G Camacho RdTamuning, GU 96913 (671) 647‑2552
Group practices
Medicare enrollment lists Karl Meier as a member of this group (CMS data updated October 2, 2026).
- Guam Memorial Hospital131 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Tamuning
Clinicians with the same Medicare primary specialty in Tamuning, GU — not a recommendation.
Other clinicians in Guam Memorial Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| 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) | 1669058004 |
| 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