Quick answers
- Does Marija Zakarija accept Medicare assignment?
- Yes. Medicare's clinician data says Marija Zakarija 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 Marija Zakarija's NPI number?
- 1932136181. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marija Zakarija works
Medicare's Facility Affiliation Data lists Marija Zakarija 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.
- MercyOne Dyersville Medical CenterDyersville, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161378
- MercyOne Oelwein Medical CenterOelwein, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161338
- Thomas H Boyd Memorial HospitalCarrollton, IL · Critical Access Hospital · Emergency services: listed by Medicare · CCN 141300
Practice locations
Addresses where Marija Zakarija is enrolled with Medicare (CMS data updated October 2, 2026).
- 201 8th Ave SEOelwein, IA 50662 (319) 283‑6000
- 800 School StCarrollton, IL 62016 (217) 942‑6946
Group practices
Medicare enrollment lists Marija Zakarija as a member of these groups (CMS data updated October 2, 2026).
- Thomas H Boyd Memorial Hospital32 clinicians in the group
- Mercy Hospital of Franciscan Sisters Inc7 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Oelwein
Clinicians with the same Medicare primary specialty in Oelwein, IA — not a recommendation.
Other clinicians in Thomas H Boyd Memorial Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1974 (52 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932136181 |
| 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