Quick answers
- Does Erik J. Arneson accept Medicare assignment?
- Yes. Medicare's clinician data says Erik J. Arneson 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.
- How many Medicare patients does Erik J. Arneson see?
- In 2024, CMS data shows 25 Original Medicare patients and 27 services for Erik J. Arneson. This counts Original Medicare only and measures volume, not quality.
- What is Erik J. Arneson's NPI number?
- 1194382119. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Erik J. Arneson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 25 |
|---|---|
| Services billed to Medicare | 27 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Stroke or mini-stroke60%
- Arthritis56%
- Depression44%
Hospitals where Erik J. Arneson works
Medicare's Facility Affiliation Data lists Erik J. Arneson 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 Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 160083
- UnityPoint Health - Des Moines Iowa Methodist MediDes Moines, IA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 160082
Practice locations
Addresses where Erik J. Arneson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1111 6th Ave E Tower, A100 Mercyone Ruan Neurology CareDes Moines, IA 50314 (515) 358‑0011
Group practices
Medicare enrollment lists Erik J. Arneson as a member of this group (CMS data updated October 2, 2026).
- Mercy Clinics Inc443 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Des Moines
Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.
Other clinicians in Mercy Clinics Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1194382119 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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