JUSTIN TSAI M.D.
NPI 1689091852
Emergency Medicine in Bellevue, WA
About Justin Tsai M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTIN TSAI M.D. (NPI 1689091852) is an individual emergency medicine provider in Bellevue, Washington, licensed in Washington (MD60708225) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS, is affiliated with Overlake Hospital Medical Center, and is a graduate of Other (2014).
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
Justin Tsai M.d. 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 Reassignments
2Medicare enrollment records show Justin Tsai reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bellevue, WA 98004
- Reassigned Medicare billing, Washington enrollment
- 566 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 663 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Overlake Hospital Medical Center
Acute Care Hospitals · Bellevue, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98004 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Justin Tsai's NPI number?
The NPI number for Justin Tsai is 1689091852. It was assigned to this individual provider in the NPPES registry on March 25, 2014.
Where is Justin Tsai located?
Justin Tsai practices at 1035 116th Ave NE, Bellevue, WA 98004. The listed phone number is (425) 688-5000.
What is Justin Tsai's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Justin Tsai enrolled in Medicare?
Yes. Justin Tsai 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 organizations bill Medicare for Justin Tsai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Tsai reassigns Medicare benefits to 2 organizations: Overlake Medical Clinics, LLC (Bellevue, WA) and Swedish Health Services (Seattle, 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 Justin Tsai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Justin Tsai accept?
Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Justin Tsai 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.
Is Justin Tsai affiliated with any hospitals?
According to CMS data, Justin Tsai is affiliated with Overlake Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Justin Tsai was last updated on May 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Justin Tsai, M.D. · NPI 1689091852
Emergency Medicine physician in Bellevue, Washington. Individual provider, active in the CMS NPPES registry since March 25, 2014.
## Identity
- **NPI:** 1689091852 (Entity type: Individual)
- **Enumerated:** March 25, 2014
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD60708225 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1035 116TH AVE NE, Bellevue, WA 98004-4604
- **Phone:** (425) 688-5000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Overlake Medical Clinics, LLC (NPI 1801828421, Bellevue, WA); Swedish Health Services (NPI 1619680840, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** May 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1689091852) · Data from the CMS NPPES public registry.