REN SHIRAI DO
NPI 1356036677
Family Medicine in Lake Oswego, OR
About Ren Shirai Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REN SHIRAI DO (NPI 1356036677) is an individual family medicine provider in Lake Oswego, Oregon, licensed in Oregon (DO228672) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ren Shirai Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Ren Shirai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tualatin, OR 97062
- Reassigned Medicare billing, Oregon enrollment
- 218 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97035 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ren Shirai's NPI number?
The NPI number for Ren Shirai is 1356036677. It was assigned to this individual provider in the NPPES registry on April 11, 2023.
Where is Ren Shirai located?
Ren Shirai practices at 18010 SW Mcewan Rd, Lake Oswego, OR 97035. The listed phone number is (503) 525-7500.
What is Ren Shirai's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Ren Shirai enrolled in Medicare?
Yes. Ren Shirai is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Ren Shirai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ren Shirai reassigns Medicare benefits to Legacy Meridian Park Hospital (Tualatin, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ren Shirai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ren Shirai accept?
Health plans from Moda Health Plan, Inc. and PacificSource Health Plans list Ren Shirai as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ren Shirai was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ren Shirai, DO · NPI 1356036677
Family Medicine physician in Lake Oswego, Oregon. Individual provider, active in the CMS NPPES registry since April 11, 2023.
## Identity
- **NPI:** 1356036677 (Entity type: Individual)
- **Enumerated:** April 11, 2023
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** DO228672 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 18010 SW MCEWAN RD, Lake Oswego, OR 97035-7868
- **Phone:** (503) 525-7500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Legacy Meridian Park Hospital (NPI 1023305034, Tualatin, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** August 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1356036677) · Data from the CMS NPPES public registry.