Quick answers
- Does Nathan R. Zvejnieks accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan R. Zvejnieks 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 Nathan R. Zvejnieks's NPI number?
- 1073178653. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nathan R. Zvejnieks works
Medicare's Facility Affiliation Data lists Nathan R. Zvejnieks 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.
- Banner - University Medical Center Tucson CampusTucson, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030064
Practice locations
Addresses where Nathan R. Zvejnieks is enrolled with Medicare (CMS data updated October 2, 2026).
- 500n Columbia River HwySaint Helens, OR 97051 (503) 274‑4999
- 5050 NE Hoyt, Suite 655Portland, OR 97213 (503) 239‑6673
Group practices
Medicare enrollment lists Nathan R. Zvejnieks as a member of this group (CMS data updated October 2, 2026).
- The Oregon Clinic, PC362 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
Other pulmonologists in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Other clinicians in The Oregon Clinic, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Sanford School Of Medicine Of University Of South Dakota |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073178653 |
| 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