PEI-YING LO
NPI 1497364392
Psychologist in Shoreline, WA
About Pei-ying Lo NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PEI-YING LO (NPI 1497364392) is an individual psychologist in Shoreline, Washington, licensed in Washington (PY61691411) and active in the NPI registry since July 2020. She is enrolled in Medicare PECOS.
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 (PECOS)
Pei-ying Lo is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Pei-ying Lo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98122
- Reassigned Medicare billing, Washington enrollment
- 911 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SHORELINE, WA 98133
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 Pei-ying Lo's NPI number?
The NPI number for Pei-ying Lo is 1497364392. It was assigned to this individual provider in the NPPES registry on July 27, 2020.
Where is Pei-ying Lo located?
Pei-ying Lo practices at 1201 N 175th St, Shoreline, WA 98133. The listed phone number is (425) 339-5453.
What is Pei-ying Lo's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Pei-ying Lo enrolled in Medicare?
Yes. Pei-ying Lo is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Pei-ying Lo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Pei-ying Lo reassigns Medicare benefits to 2 organizations: The Polyclinic PLLC (Seattle, WA) and Optum Care Washington PLLC (Everett, WA). Each 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 Pei-ying Lo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Pei-ying Lo accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Pei-ying Lo 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 Pei-ying Lo was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.