Quick answers
- Where does Kerry L. O'Brien see patients?
- Medicare's clinician data lists 1 practice location in Milwaukie, OR. Call before your visit to confirm the address.
- What is Kerry L. O'Brien's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Kerry L. O'Brien accept Medicare assignment?
- Yes. Medicare's clinician data says Kerry L. O'Brien 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 Kerry L. O'Brien?
- (971) 206-5164, as listed in official Medicare / NPI Registry data.
- What is Kerry L. O'Brien's NPI number?
- 1366418535. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Kerry L. O'Brien is enrolled with Medicare (CMS data updated 2026-10-02).
- 4560 SE International Way, Suite 100Milwaukie, OR 97222 (971) 206‑5164
Group practices
Medicare enrollment lists Kerry L. O'Brien as a member of this group (CMS data updated 2026-10-02).
- Marquis Clinical Services LLC25 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Milwaukie
Clinicians with the same Medicare primary specialty in Milwaukie, OR — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366418535 |
| 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
- 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