Quick answers
- Does Elwyn A. Garaza accept Medicare assignment?
- Yes. Medicare's clinician data says Elwyn A. Garaza 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 Elwyn A. Garaza's NPI number?
- 1790868818. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Elwyn A. Garaza works
Medicare's Facility Affiliation Data lists Elwyn A. Garaza 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.
- Pine Ridge IHS HospitalPine Ridge, SD · Acute Care Hospital · Emergency services: listed by Medicare · CCN 430098
Practice locations
Addresses where Elwyn A. Garaza is enrolled with Medicare (CMS data updated October 2, 2026).
- East Hwy 18Pine Ridge, SD 57770 (605) 867‑3032
- PO Box 1201 E Hwy 18Pine Ridge, SD 57770
Group practices
Medicare enrollment lists Elwyn A. Garaza as a member of this group (CMS data updated October 2, 2026).
- Pine Ridge Indian Health Service Hospital108 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in South Dakota
Clinicians with the same Medicare primary specialty in South Dakota — not a recommendation.
Other clinicians in Pine Ridge Indian Health Service Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790868818 |
| 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