Quick answers
- Does Gwendolyn Derk accept Medicare assignment?
- Yes. Medicare's clinician data says Gwendolyn Derk 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 Gwendolyn Derk's NPI number?
- 1811639404. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gwendolyn Derk works
Medicare's Facility Affiliation Data lists Gwendolyn Derk 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.
- Hillsboro Medical CenterHillsboro, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380021
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380009
Practice locations
Addresses where Gwendolyn Derk is enrolled with Medicare (CMS data updated October 2, 2026).
- 335 SE 8th AveHillsboro, OR 97123 (503) 681‑1111
Group practices
Medicare enrollment lists Gwendolyn Derk as a member of this group (CMS data updated October 2, 2026).
- Tuality Medical Group LLC297 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Hillsboro
Clinicians with the same Medicare primary specialty in Hillsboro, OR — not a recommendation.
Other clinicians in Tuality Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 2022 (4 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811639404 |
| 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