Quick answers
- Does Arnie Lou Baker accept Medicare assignment?
- Yes. Medicare's clinician data says Arnie Lou Baker 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 Arnie Lou Baker see?
- In 2024, CMS data shows 12 Original Medicare patients and 18 services for Arnie Lou Baker. This counts Original Medicare only and measures volume, not quality.
- What is Arnie Lou Baker's NPI number?
- 1487132973. 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 Arnie Lou Baker, 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 | 12 |
|---|---|
| Services billed to Medicare | 18 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 63 |
Hospitals where Arnie Lou Baker works
Medicare's Facility Affiliation Data lists Arnie Lou Baker 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.
- Saint Joseph Regional Medical CenterMishawaka, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150012
Practice locations
Addresses where Arnie Lou Baker is enrolled with Medicare (CMS data updated October 2, 2026).
- 1001 Sturdy RdValparaiso, IN 46383
- 388 Ypao RdTamuning, GU 96913 (671) 646‑8881
- 420 W 4th StMishawaka, IN 46544
Group practices
Medicare enrollment lists Arnie Lou Baker as a member of these groups (CMS data updated October 2, 2026).
- Healthlinc Inc84 clinicians in the group
- General Conference Corp of Sda51 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Valparaiso
Clinicians with the same Medicare primary specialty in Valparaiso, IN — not a recommendation.
Other clinicians in Healthlinc Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487132973 |
| 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