Quick answers
- Which hospitals does Catherine A. Obrien work at?
- Medicare's official clinician data lists Catherine A. Obrien at 4 hospitals: Providence Newberg Medical Center, Salem Hospital, Samaritan North Lincoln Hospital and Willamette Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Catherine A. Obrien see patients?
- Medicare's clinician data lists 2 practice locations, including McMinnville, OR and Salem, OR. Call before your visit to confirm the address.
- What is Catherine A. Obrien's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
- Does Catherine A. Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine A. Obrien accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Catherine A. Obrien?
- (503) 435-6590, as listed in official Medicare / NPI Registry data.
- What is Catherine A. Obrien's NPI number?
- 1417994047. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Catherine A. Obrien works
Medicare's Facility Affiliation Data lists Catherine A. Obrien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Newberg Medical CenterNewberg, OR · Acute Care Hospital · CCN 380037
- Salem HospitalSalem, OR · Acute Care Hospital · CCN 380051
- Samaritan North Lincoln HospitalLincoln City, OR · Critical Access Hospital · CCN 381302
- Willamette Valley Medical CenterMcMinnville, OR · Acute Care Hospital · CCN 380071
Practice locations
Addresses where Catherine A. Obrien is enrolled with Medicare (CMS data updated 2026-10-02).
- 2700 SE Stratus Ave, Suite AMcMinnville, OR 97128 (503) 435‑6590
- 875 Oak St SE, Suite 4030Salem, OR 97301 (503) 561‑6444
Group practices
Medicare enrollment lists Catherine A. Obrien as a member of this group (CMS data updated 2026-10-02).
- Oregon Oncology Specialists LLP41 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Davis School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417994047 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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