Quick answers
- Where does Ren Shirai see patients?
- Medicare's clinician data lists 2 practice locations, including Lake Oswego, OR and Tualatin, OR. Call before your visit to confirm the address.
- What is Ren Shirai's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Ren Shirai accept Medicare assignment?
- Yes. Medicare's clinician data says Ren Shirai 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 Ren Shirai?
- (503) 525-7500, as listed in official Medicare / NPI Registry data.
- What is Ren Shirai's NPI number?
- 1356036677. 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 Ren Shirai is enrolled with Medicare (CMS data updated 2026-10-02).
- 18010 SW McEwan RdLake Oswego, OR 97035 (503) 525‑7500
- 19300 SW 65th AveTualatin, OR 97062
Group practices
Medicare enrollment lists Ren Shirai as a member of this group (CMS data updated 2026-10-02).
- Legacy Meridian Park Hospital115 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Lake Oswego
Clinicians with the same Medicare primary specialty in Lake Oswego, OR — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356036677 |
| 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