DR. BASSIM M DOWIDAR MD
NPI 1164474243
Emergency Medicine in Seattle, WA
About Dr. Bassim M Dowidar Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BASSIM M DOWIDAR MD (NPI 1164474243) is an individual emergency medicine provider in Seattle, Washington, licensed in Washington (MD00046057) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Evergreenhealth Medical Center, and is a graduate of University Of Washington School Of Medicine (2003).
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
Dr. Bassim M Dowidar Md 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
4Medicare enrollment records show Bassim Dowidar reassigns Medicare billing to 4 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
- 59 clinicians in this Medicare group
Kirkland, WA 98034
- Reassigned Medicare billing, Washington enrollment
- 1,074 clinicians in this Medicare group
Kirkland, WA 98034
- Reassigned Medicare billing, Washington enrollment
- 69 clinicians in this Medicare group
Redmond, WA 98052
- Reassigned Medicare billing, Washington enrollment
- 101 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 4
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.
Evergreenhealth Medical Center
Acute Care Hospitals · Kirkland, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98122 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98122
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 Bassim Dowidar's NPI number?
The NPI number for Bassim Dowidar is 1164474243. It was assigned to this individual provider in the NPPES registry on May 16, 2006.
Where is Bassim Dowidar located?
Bassim Dowidar practices at 500 17th Ave, Seattle, WA 98122. The listed phone number is (206) 320-2111.
What is Bassim Dowidar's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Bassim Dowidar enrolled in Medicare?
Yes. Bassim Dowidar 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 Bassim Dowidar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Bassim Dowidar reassigns Medicare benefits to 4 organizations: Seattle Emergency Physicians Services Inc Ps (Seattle, WA), King County Public Hospital District No 2 (Kirkland, WA), Evergreen Emergency Services, Ps (Kirkland, WA) and Eastside Emergency Physicians, PLLC (Redmond, 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 Bassim Dowidar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Bassim Dowidar accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Bassim Dowidar 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 Bassim Dowidar affiliated with any hospitals?
According to CMS data, Bassim Dowidar is affiliated with Evergreenhealth Medical Center.
When was this NPI record last updated?
The NPPES record for Bassim Dowidar was last updated on February 6, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Bassim M Dowidar, MD · NPI 1164474243
Emergency Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since May 16, 2006.
## Identity
- **NPI:** 1164474243 (Entity type: Individual)
- **Enumerated:** May 16, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD00046057 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 500 17TH AVE, Seattle, WA 98122-5711
- **Phone:** (206) 320-2111 · **Fax:** (206) 320-3396
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Seattle Emergency Physicians Services Inc Ps (NPI 1376642298, Seattle, WA); King County Public Hospital District No 2 (NPI 1548350713, Kirkland, WA); Evergreen Emergency Services, Ps (NPI 1619912524, Kirkland, WA); Eastside Emergency Physicians, PLLC (NPI 1710288758, Redmond, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 2003
## Record status
- **NPPES last updated:** February 6, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1164474243) · Data from the CMS NPPES public registry.