Quick answers
- Does Costina M. Papatheodorou accept Medicare assignment?
- Yes. Medicare's clinician data says Costina M. Papatheodorou 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 Costina M. Papatheodorou's NPI number?
- 1033805791. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Costina M. Papatheodorou works
Medicare's Facility Affiliation Data lists Costina M. Papatheodorou 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.
- Trios HealthKennewick, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500053
Practice locations
Addresses where Costina M. Papatheodorou is enrolled with Medicare (CMS data updated October 2, 2026).
- 3730 Plaza WayKennewick, WA 99338 (509) 221‑6450
Group practices
Medicare enrollment lists Costina M. Papatheodorou as a member of this group (CMS data updated October 2, 2026).
- RCCH Trios Health LLC65 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Kennewick
Clinicians with the same Medicare primary specialty in Kennewick, WA — not a recommendation.
Other clinicians in RCCH Trios Health LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Alabama College Of Osteopathic Medicine |
| Graduation year | 2023 (3 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033805791 |
| 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