MS. WAI WUN DIANA CHAN MSW, LICSW
NPI 1952552309
Social Worker - Clinical in Bainbridge Island, WA
About Ms. Wai Wun Diana Chan Msw, Licsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. WAI WUN DIANA CHAN MSW, LICSW (NPI 1952552309) is an individual clinical provider in Bainbridge Island, Washington, licensed in Washington (LW 60193264) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses 4
Other Names 1
Other Identifiers 1
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
Ms. Wai Wun Diana Chan Msw, Licsw 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 Wai Wun Diana Chan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bainbridge Island, WA 98110
- Reassigned Medicare billing, Washington enrollment
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 98110 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BAINBRIDGE ISLAND, WA 98110
BAINBRIDGE ISLAND, WA 98110
BAINBRIDGE ISLAND, WA 98110
BAINBRIDGE ISLAND, WA 98110
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 Wai Wun Diana Chan's NPI number?
The NPI number for Wai Wun Diana Chan is 1952552309. It was assigned to this individual provider in the NPPES registry on October 3, 2008. The provider is also known as Diana Chan.
Where is Wai Wun Diana Chan located?
Wai Wun Diana Chan practices at 793 Ericksen Ave NE Ste 123, Bainbridge Island, WA 98110. The listed phone number is (206) 207-5375.
What is Wai Wun Diana Chan's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Wai Wun Diana Chan enrolled in Medicare?
Yes. Wai Wun Diana Chan 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 Wai Wun Diana Chan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Wai Wun Diana Chan reassigns Medicare benefits to Diana Chan Counseling PLLC (Bainbridge Island, WA). 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 Wai Wun Diana Chan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Wai Wun Diana Chan accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Wai Wun Diana Chan 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 Wai Wun Diana Chan was last updated on July 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Ms. Wai Wun Diana Chan, MSW, LICSW · NPI 1952552309
Clinical provider in Bainbridge Island, Washington. Individual provider, active in the CMS NPPES registry since October 3, 2008.
## Identity
- **NPI:** 1952552309 (Entity type: Individual)
- **Enumerated:** October 3, 2008
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** LW 60193264 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 793 ERICKSEN AVE NE STE 123, Bainbridge Island, WA 98110-1877
- **Phone:** (206) 207-5375 · **Fax:** (206) 338-9906
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Diana Chan Counseling PLLC (NPI 1679967186, Bainbridge Island, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** July 27, 2023
- **Other identifiers:** Medicaid 2048825 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1952552309) · Data from the CMS NPPES public registry.