Quick answers
- Does Xiomara M. Castillo Rivera accept Medicare assignment?
- Yes. Medicare's clinician data says Xiomara M. Castillo Rivera 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 Xiomara M. Castillo Rivera's NPI number?
- 1740866599. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Xiomara M. Castillo Rivera works
Medicare's Facility Affiliation Data lists Xiomara M. Castillo Rivera 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.
- Samaritan North Lincoln HospitalLincoln City, OR · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 381302
- Samaritan Pacific Community HospitalNewport, OR · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 381314
Practice locations
Addresses where Xiomara M. Castillo Rivera is enrolled with Medicare (CMS data updated October 2, 2026).
- 1105 SE Jetty Ave, Suite CLincoln City, OR 97367 (541) 265‑4947
- 36 SW Nye StNewport, OR 97365
- 36 Swnye StNewport, OR 97365
Group practices
Medicare enrollment lists Xiomara M. Castillo Rivera as a member of this group (CMS data updated October 2, 2026).
- County of Lincoln28 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Lincoln City
Clinicians with the same Medicare primary specialty in Lincoln City, OR — not a recommendation.
Other clinicians in County of Lincoln
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ponce School Of Medicine |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740866599 |
| 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