Quick answers
- Which hospitals does Einar K. Arason work at?
- Medicare's official clinician data lists Einar K. Arason at 2 hospitals: Boone County Hospital and Mary Greeley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Einar K. Arason see patients?
- Medicare's clinician data lists 1 practice location in Ames, IA. Call before your visit to confirm the address.
- What is Einar K. Arason's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Einar K. Arason accept Medicare assignment?
- Yes. Medicare's clinician data says Einar K. Arason 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 Einar K. Arason?
- (515) 956-4050, as listed in official Medicare / NPI Registry data.
- What is Einar K. Arason's NPI number?
- 1831321579. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Einar K. Arason works
Medicare's Facility Affiliation Data lists Einar K. Arason at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Boone County HospitalBoone, IA · Critical Access Hospital · CCN 161372
- Mary Greeley Medical CenterAmes, IA · Acute Care Hospital · CCN 160030
Practice locations
Addresses where Einar K. Arason is enrolled with Medicare (CMS data updated 2026-10-02).
- 3815 Stange RdAmes, IA 50010 (515) 956‑4050
Group practices
Medicare enrollment lists Einar K. Arason as a member of this group (CMS data updated 2026-10-02).
- McFarland Clinic PC363 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Ames
Clinicians with the same Medicare primary specialty in Ames, IA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831321579 |
| 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